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Codename	GMA 500
Architecture	PowerVR SGX535 (Serie SGX-5)
Pipelines	4 - unified
Core Speed *	200 MHz
Shader Speed	200 MHz
Memory	Until 1GB Shared
DirectX	DirectX 9.0c, Shader 3.0
Technology	65 nm
Features	OpenGL 2.0, PowerVR SGX Kern, Screen Tiling, Internal True Color Processing,Zero overhead AA, 32 Bit floating-point operations.
Date of Announcement	01.11.2008

Driver	Version	Date	Download
IEMGD 1.18 7/8*/8.1*/10*	8.14.1180.3398	Core 04/04/2013 Rev 2017	Mega Link  MIRROR MIRROR2
Official Intel 7/8*/8.1*/10*	8.14.10.2030	09/16/2010	MIRROR
IEMGD 1.18 XP/Vista*/7*	1.18.0.3398	Core 04/04/2013  Rev 2014	Mega Link  MIRROR MIRROR2
Official Intel XP/Vista*/7*	6.14.11.1018	12/03/2009	N.A.
Official Intel Vista	7.14.10.1006	06/23/2009	N.A.
Mesa3D - Wrappers	2.0	12/08/2017	Mega Link  MIRROR MIRROR2
Optimus IEMGD 7/8/8.1/10	1.2R Alpha	01/09/2021	LINK

  *Compatibility Mode

->PLEASE, READ all blog's posts to avoid no sense questions<-
All drivers released are compiled for Atom Z5xx (US15) with official Intel CED downloadable: HERE

If you like these sources click on ads or think to donate. OFFICIAL GUIDE IEMGD Add-On: HERE

How to Install:

1)Download and UnRar package (for example with WinRAR)

2)Run IEMGD Add-on (in older release WindowsDriverSETUP.cmd or Setup.exe)

3)Select your display max resolution (only in IEMGD add-on) and follow installer instructions

Note. If any problem occurs with installer just try to install the driver manually via control pannel\device manager\Update video card driver

Tip: To Accelerate Setup Process,in IEMGD addon, check "Restart Automatically" Box, "OK" and Accept Unsigned Driver

Note. To Add HDMI Audio Support just Download from your online device support area the video driver package and extract the HDMI folder! Then you have two possibility: 
1)Try to force setup with IEMGD add-on (select your max resolution or external profile, select custom, import Video\Audio files) 
2)Install the files from Windows Device Manager.
Read Official Guide IEMGD add-on for more infos and How to install guide.

How to Uninstall:

Control Pannel\Programs and functions (older xp version can be uninstalled from WindowsDriverSetup.cmd)

Note.If any problem occurs with the driver, uninstall it via Windows Safe Mode to restore Microsoft Default Video Driver

FAQ  (Frequently asked questions)

Is my device compatible?

The Driver works only with (US15) Poulsbo Platform devices and stock Intel GMA500(200Mhz)
N.B.It doesn't work with GMA600 due to the different platform! (probably need some patch in sys path but anyway I don't have any device with this hardware so if you want can send me a laptop for testing)
Can be incompatible with some devices because many displays have different configurations.

This is an incomplete list of confirmed working devices in Win 7\8\8.1\10:

• Auto Configuration works on: Acer AO751H -Asus 1101HA - Asus 1201HA -Archos 9 PC Tablet - Dell Mini 1010 - Kohjinsha SX3 -MSI U115 - Nokia Booklet 3G-Viliv S5, Sony Vaio P VGN-P720K , Sony VGN-P29VN_Q,  ect ect. 
• Other Inf function: Sony Vaio X, Fujitsu U820- U2010 and Asus T91MT/T91
• Tablets\netbooks\notebook that requires CUSTOM Mode Compiling in IEMGD Add-on:Probably some of Sony Devices

Thanks to:

-Vladimir for 1024x600 profile for Asus T91 Series

-Deman   for 1024x768 profile for FSL 979 Winpad

Got black screen with IEMGD or Strange colors view? This mean that common settings are not compatible.

Uninstall it from (options):

A)Control Panel (if Windows shows desktop)

B)Start Windows in Safe Mode -> Control Panel

C)Windows Recovery Console

D)If you have windows 8\8.1\10 with fast boot enabled: restart manually after the windows login with black screen for 3 times. At the next boot will appear Windows Tool\Go do advanced Setting and select Restart in Safe Mode

Try to fix the problem by your own self:

• If there are different profiles, in IEMGD Add-on, for your display max resolution try another one
• If you know your display panel settings use  IEMGD Add-On Custom mode to create a new profile for the driver (please share working profiles!) [MORE info in IEMGD Editor SECTION]
• If you are not good at computer simple check on Google  for another custom package (Googling: EMGD for YOURDEVICE) than share with us that driver!

ITA.In alcuni pc il driver non funziona correttamente (windows si avvia con schermo nero,colori psichedelici o schermo tremante). Questo problema è causato dal file igdlh32.inf . Normalmente, il driver richiede le informazioni specifiche all'hardware ma se l'EDID (Extended Display Identification Data) non è completo (poco importa se la marca del pc asus,acer o altro questo parametro dipende dal display che durante la produzione è stato inserito) vengono utilizzati i settaggi alternativi presenti che non possono garantire il funzionamento corretto su tutti i monitor.

Come potete risolvere? 
1)cercate su Google, o altro motore di ricerca, un driver IEMGD compatibile per il vostro device. In giro ci sono molti Publisher e se volete condividete con noi il file igdlh32.inf contenuto nella cartella LPCO.
2)Sviluppate una configurazione funzionante tramite Intel CED o tramite IEMGD Add-On. Come si fa? Scaricate AIDA64,leggete l'ID del monitor e poi cercate su Internet il datasheet del pannello. All'interno del file digitale troverete tutte le informazioni richieste.

Difference between WinXP\7 vs Win7\8\10 drivers:

WinXP\Vista\7 driver respects XPDM (XP Driver model),supports DXVA 1.0 (DirectX Video Acceleration) and has a better software rendering while Win7\8\8.1\10 ,WDDM 1.1,driver has full support to DVXA 2.0 and a better hardware rendering(reduce CPU usage).
Under Win 7, usually, is better to use a WDDM driver.
Note.On Asus devices, if you use XP driver in Windows 7, have to install SHE FiX to restore Power Saving profile (Mega Link: Download ; Mirror3: Download)

Difference between IEMGD and Intel Default drivers:

• Intel Embedded Media & Graphics Driver has more apps\games compatibility, bugfixes, OpenGL 2.0 support and it is directly setted for highest performace (about +20% vs stock driver). 
• Small fixes were added to make it: light,stable with US15 Platform.Furthermore my Win 7/8/10 custom package includes: the WDDM (Windows Display Driver Model)  1.1 driver; IEMGD Add-On, a fast way to generate custom profiles; multidevices support; AutoSupport for Windows 8/8.1/10; Fixes/workaround for minor bugs like incompatible MS Performance Test, unworking Attribute button, Display detection, Brightness Level Control; a fixed uninstaller,remove all exept OpenGL that will be always enabled, also if you downgrade to official intel driver.
• IEMGD doesn't support downscaling (ex. allows to set 1024x600@1024x768), DPST (Display Power Savings Technology Policy available only when on Battery), ALS(ADB = Automatic Display Brightness Policy available only when on battery in devices with ambient light sensor). Anyway there is no significant battery usage.

Difference between my driver package vs stock embedded driver:

Compiled to work with more devices without download an heavy suite,reduced package size and fixed some problem(really more easy to install it).

Which is the best O.S. for Intel GMA 500?

Microsoft Windows 7 home premium 32bit with some fixes (read Windows SpeedUP)

It's still the best compromise between overall performance and driver features

You can also install an entry level SSD and upgrade RAM to 2GB 800MHz and use Optimus IEMGD

Which is the latest DirectX available for Intel GMA 500?

Hardware support it until DX9c or DX9L but you may install newer package for bugfixes.

DX9L ,called also DX9Ex, is available only for Windows Vista and Win 10 (it doesn't bring benefits to GPU)

Is possible to play 1080p video with Intel GMA 500?

Yes, it is possible with correct video player (see this post) and correct video codec.

GPU supports hardware decoding for H264, MPEG 2/4, VC1, WMV9

Is necessary vBios for install this driver?

No, it isn't. The Driver works correctly also without Embedded vBios (Beta).

Embedded Video Bios isn't compatible with Intel Official GMA 500 Driver and doesn't bring any benifit.

Other Informations about compiling it are avaiable HERE and IEMGD Editor Section

This operation is not suggested on laptop.

What is Mesa3D - Wrapper Package?
Include Software OpenGL for all pc (MESA3d), Glide Wrapper (an old game library), DirectX Wrapper (to OpenGL for newer PC), a backup of stock IEMGD 1.18 Opengl library usable also for GMA600

How to install the MESA3D OpenGL Software Accelerated: This solution is suggested only on Windows 8.x and 10 because the OS doesn't support Hardware OpenGL rendering. Anyway this method has a slow rendering but you will able you to run applications that require OpenGL > 1.1 (Stock Windows). Use Optimus IEMGD (this method will not require any modification to your system) or download Mesa3D - Wrappers Package.
-Unrar it, rename Mesa3D opengl32.dll and overwrite igdogl32.dll in c:\windows\system32 folder.

Note.When your app requires only max OpenGl 1.1 rename c:\windows\system32\igdogl32.dll to, for ex, igdogl32disable.dll,or use Optimus IEMGD option, because Microsoft stock opengl has better performance.

Why Intel GMA 500 is so slow in 3D Graphic?

It is a little bit complicated to say but essentially for GPU low clock,architecture and mostly a not perfect Intel driver.

This kind of platform was develop as MID (Mobile Internet Device): Internet and Media that is exactly what our devices do!

GPU clock seems to be editable only on US15W platform and only before System startup (Read Overclock Section, straps)

Intel Graphics Tool problems?: Upgrading from Official Intel to Embedded Driver without Uninstall the first one causes a wrong copy. Solution: Uninstall the Driver ,Restart pc and reinstall IEMGD

How to use External Monitor Settings: (By Default is setted Clone Mode)

MID = Internal Monitor | Monitor = External Monitor

Single Display= Only a monitor will stay active when video cable is plug-in

Dual Display Clone = Both Monitors show the same Image at the same Resolution and Refresh Rate

Extended Desktop = Each Monitor shows an Image (can be the same if you copy it in extended desktop) and have a proper editable Resolution and Refresh Rate.

For ex. You can see a video1 in MID monitor and a video2 in external Monitor

How to apply Display Color Correction:

Usually this operation is not required by default. MS Windows includes displays tools but take really more time and the results are not so different from stock configuration.

Anyway for "normal" users, that want to try this feature, I suggest to use Intel Tool Utility.

Values are display linked so it's impossible to know which is the best configuration for your monitor.

Stock values are Gamma 1.0, Brightness 0 and Contrast 50

Check if editing color settings there is a better view (in my case I reduced only All Gamma value to 0.8)

Bugs Report:

 

Note.Seems that Microsoft removed backlight control for xp driver (tested under win7 and Vista), editing hw registry will not change level (no problem for now with WDDM driver) so probably check Microsoft bugfix cause acpi and soc drivers will not solve the problem.

Windows XP

Inverted Backlight Control by Fn button after hibernation or sleep-mode (Minor Bug)

VGA enabled only booting OS with video cable plugged-in (Minor Bug)

Without official Microsoft updates is impossible to install it on a fresh clean OS (Support EOS)
Windows 7

No Backlight Control by Fn button after hibernation or Suspension (restart the driver or Optimus IEMGD). Has reported from Microsoft is a bug with acpi state

VGA port enabled only running Intel Graphic Tool or pressing Win+P

Windows 8

Random BSoD: Really suggested to upgrade OS or  install Windows 7/8.1/10

No Backlight Control by Fn button after hibernation or Suspension (restart the driver or Optimus IEMGD). Has reported from Microsoft is a bug with acpi state

VGA port enabled only running Intel Graphic Tool or pressing Win+P

Few random glitches: Minor Bug 

OpenGL Hardware Accelerated is not SUPPORTED (use MESA Software OpenGL)

Recent App display may returns BSoD (disable this feature from Windows bar\properties)

Metro Video App, other Metro's Apps, Internet Explorer  don't use hardware acceleration

Windows 8.1

No Backlight Control by Fn button after hibernation or Suspension (use software controller or Optimus IEMGD). Has reported from Microsoft is a bug with acpi state

VGA port enabled only running Intel Graphic Tool or pressing Win+P

Few random glitches: Minor Bug 

OpenGL Hardware Accelerated is not SUPPORTED (use MESA Software OpenGL)

Recent App display may returns BSoD (disable this feature from Windows bar\properties)

Metro Video App, other Metro's Apps, Internet Explorer  don't use hardware acceleration

Windows 10

No Backlight Control by Fn button after hibernation or Suspension (use software controller or Optimus IEMGD). Has reported from Microsoft is a bug with acpi state

VGA port enabled only running Intel Graphic Tool or pressing Win+P

Few random glitches: Minor Bug 

OpenGL Hardware Accelerated is not SUPPORTED (use MESA Software OpenGL)

Recent App display may returns BSoD (disable this feature from Windows bar\properties)

Metro Video App, other Metro's Apps, Internet Explorer  don't use hardware acceleration

Common Tweaks:

- Install latest DirectX

- Enable Intel Hyper threading (read Windows SpeedUP)

- Set Paging file size  (read Windows SpeedUP)

- Install 2GB RAM (suggested Sodimm CL5 800MHz DDR2 price 20€, anyway aliexpress less 10€)
- Install an entry level SSD (20€) to speed up,a little, the OS (aliexpress less 15€)

- Install Video Codec Pack + Alternative Video Player

- Overclock your processor and use High Performance mode on Windows 7 settings (Optimus IEMGD)

- Use correct Web Browser

- Improve DPI if you have a small display with elevated pixel (better view)

THANKS TO TESTERS! Custom Support is ENDED (no more upgrades).

If you are getting problems with lastest revision, write a comment, try old builds or google for another custom driver and share with us your working configuration.

SSD on US15 Platform : Is it a waste of money?

SSD (Solid State Disk) is a recent technology that removed all mechanical part from storage unit (that mean less temperature,less power consumption,less noise and less risks of damnages) and replaces with flash chips. This solution is about 4x, or more, faster than a traditional Mechanical Hard Disk @7200rpm.

Initially I was enthusiastic because in many US15 devices Hard disk are 5200rpm, but is not all gold that glitters! 

                                         (Max file transfert SSD 540MB/s vs my HD 55MB/s)

Somebody forgot to say that the performance depends from SATA port (mainboard connector for hard drive) so i have take a look at my port (some US15 devices have SATA 2).

In my case it is a S-ATA 150 and ,with a SSD , I should have about 3x performance better than my hard drive with constant data transfer (see picture).... but it isn't so simple!!!! (read above)

Version Name Theoric Performance Effective Performance SATA 1.0 Serial ATA-150 1,5 Gbps (192 MB/s) 1,2 Gbit/s (150 MB/s) SATA 2.0 Serial ATA-300 3 Gbps (384 MB/s) 2,4 Gbit/s (300 MB/s) SATA 3.0 Serial ATA-600 6 Gbps (768 MB/s) 4,8 Gbit/s (600 MB/s) (Samsung SSD 840 and a different Platform)

The SSD need  AHCI (Advanced Host Controller Interface) to go faster and enable TRIM function but no US15 Bios has this function (anyway  you can still install SSD and make it works slower)
So I was still enthusiast,saying to my self:<<with a low cost SSD like Samsung 840 (80€ for 120GB) i will get the best from Sata port (2x quicker)>>.... but we are more unlucky!
I've started looking for benchmarks  and  "SURPRICE - SURPRICE":  i found three users with SSD's max file trasfer low rate problem: 60MB/s (with Corsair and OCZ). I've quickly thought:<<should be a ssd problem? or benchmark? ect,ect.>> but i wasn't sure and keep on my research.
Finally I found an illuminating post:
 <<Atom based systems with the Intel US15W chipset are fundamentally incompatible with the TRIM command because the SATA controllers on the board are not really SATA controllers. They are actually just a bridge to an internal PATA controller. SATA "compatibility" on a US15W netbook means only that you can fit a SATA drive into the slot, not that you can benefit from SATA performance. See the Intel Support Community for more information: 

"The US15W chipset internally uses a PATA controller. To connect to SATA drives, a bridge chip is used. The drive annouces trim capability when queried by the Windows installer, but the bridge chip does not support passing trim commands to the SATA SSD drive, causing data transfers to the drive to fail."

What typically happens when "data transfers to the drive fail"?

1. Failed Win 7 installation
2. Long boot times and terminal boot hangs
3. Sluggish, frustratingly non-responsive applications 
4. Slower than expected read/write speed (~60MB/s) rather than the 220MB/s you were hoping for

If you are experiencing any of these symptoms, you need to disable TRIM in Windows 7. That's right: you need to DISABLE TRIM.

Go ahead and take a moment to feel disappointed, sad and misled. Then run cmd.exe and type in "fsutil behavior set disabledeletenotify 0" at the DOS command prompt. The non-responsive sluggishness will disappear instantly; your computer will be usable once again. Slow read/write speeds however will not be affected. You still will be running a super-fast SATA data through the bottleneck of a PATA controller.>>

Solution:
Install a previous version of Windows, then install Windows 7 from that installation and finally disable trim support in the registry from a Bart PE boot CD/key twice during installation reboots.

Tools needed:

• External CD drive or bootable USB key
• Windows XP / Windows Vista installation CD or USB key
• Bart PE boot CD or USB key

Details:

1. Install Windows XP or Windows Vista on the computer (if you want optimal partion alignment, use Vista. But the performance difference will not be significant on an Atom platform)
2. Start the Windows 7 installer from within the older version of Windows. Select Advanced to install on the existing partition (the old Windows instllation will be moved to c:\windows.old during the installation process and can be deleted later)
3. The installer will reboot the computer three times during the installation process. During the first and second reboot, boot into Bart PE first to edit the registry to disable trim support:
4. During the first reboot, boot into Bart PE, start regedit.exe, browse to HKEY_LOCAL_MACHINE, select load hive from file menu, browse to [SSD_Drive_letter]:\$Windows.~bt\System32\Config\ and load the file "system". Name the hive "temp" when prompted. Then browse to HKEY_LOCAL_MACHINE\temp\Controlset001\Control\Filesystem and change DisableDeleteNotification from 0 to 1. Repeat for any other Controlset00x. Then, mark the HKEY_LOCAL_MACHINE\temp node in the tree view and select unload hive from the file menu. Reboot and let it continue the installation.
5. During the next reboot initiated by the installer, repeat the above, but instead load the "system" registry file from [SSD_Drive_letter]:\Windows\System32\Config\
6. Let the installer finish the installation and delete the c:\Windows.old folder.

ADD 01/Sept/2013: I've checked some benchmark,on dell mini/msi wind/asus 1101,with OCZ Agility 3 - Corsair SSD - and WD Blu @5400rpm. All these drives have the same file max trasfert limit to 60-65MB/s!
PATA controller is real and confirmed by Intel SCH Datasheet (UDMA: max file rate 66MB/s).

My test:
SSD KingSpec 120gb 32€ arrived: entry level. Testing and fixing problems
Max file transfert: 65-55mb/s;  Min file transfert: 50(superfetch off)-45(superfetch on)
Fixing partition problem with align (cause i use win xp to install win 7 and because pata controller need IDE mode, no ahci support). Boring netbook!
Results: Good time access 0.2 but as we know max file transfert is horrible due to pata controller. Not a "real" optimal upgrade.
How to install and fix ssd upgrading:
-install windows xp or better windows vista (create partitions)
-install windows 7. If setup fail at the end just restart setup (recovery console), prompt msdos go to c:\ use fsutil to disable trim and regedit to disable msahci with value 3 (ide mode). Then install it
-when win 7 is installed check again trim and msahci
-disable hardisk standby in powersaving
-Upgrade win7 with windows update or wsus (if the first doesn't work)
-Fix MBR to remove windows xp choice on boot
-Right click on hardrive/properties and delete old windows files
-disable defrag scheduler (no more needed with ssd)

-disable prefetch and superfetch

-crucial suggest to disable also MS-Dos denomination: fsutil.exe behavior set disable8dot3 1 (to renable it set 0)
-install partition manager 9 to check align and correct it if wrong(for example from windows xp)
-scandisk.
Benchmark:

Hd tune: Burst rate totally incorrect with ssd.
As ssd benchmark: pciide bad is correct because is not possible to activate msahci on us15 pata controller.

Summary:
If you want few better performance choose SSD:
+ Constant Data Transfert (see picture)
+ Lower Data Time Access
+ Faster Boot and aperture apps (Asus T91mt ssd 32gb=35sec; Asus 1101HA 160gb @5400 hd=46sec)
+ Less power consumption (<1.5W)
+ Less Noise Level,weight and temperature
- Expensive for what you get
- Low Data Size (20€ for 120GB)
- Max File Data Transfer (the same of HD in our platform)

REMEMBER. Don't waste your money for high-end SSD because you will not get more performance!

Windows 8.1 PRO Update1 : Intel Atom Z520 (April 2014)

-Processor: 1 gigahertz (GHz) o better with  PAE, NX and SSE2 support

-RAM: 1 GB (32 bit) or 2 GB (64 bit) [I suggest to install 32bit version only with  2GB on Atom devices]

-Free Space: 16 GB (32 bit) or 20 GB (64 bit)

-Graphic Card: Microsoft DirectX 9 with WDDM driver

Note.Windows Xp system minimum requirements (Pentium 233 MHz, 64 MB RAM, 1,5 GB hardisk;VGA 800 x 600)

Starting Tweaks: (read HERE)

-Hyper Threading

-No paging file

-Small taskbar buttons

-Go to desktop instead of start (when loading)

-Start show apps directly (when use metro)

-Disabled UAC and SmartScreen (useful only for a "foolish user")

-Classic Shell (close metro\moder UI for a classic win7 experience)

-Remove all password requests from login

Removing Login: Right Click on Start Icon\Run (or Win+R) then insert "netplwiz":

Settings\change PC settings\Accounts\Sign-in Options:

Comments:

Metro Ui  Speed with GMA500 and Z520@1.33Ghz VOTE: 5.5 ->lag between first screen and Apps section (probably will be released some patch to make it quicker)

BSoD observed with: "When I point  to the upper-left corner, switch between my recent apps"

(ITA Passa da un' app recente all'altra quando si fa click sull'angolo sinistro).

• Keyboard Commands

Win+F1  Help

Win+F3/W/Q/S/F Search

Win+Pause System

Win+1/2/3/ects Run first/second/ect. icon in taskbar

Win+ "+"  Zoom in

Win+P Project to a connected screen

Win+I Settings

Win+U Ease of Access Center

Win+T select a taskbar icon

Win+R Run

Win+E This PC (ex Local)

Win+D Minimize Program

Win+H Share

Win+K Devices

Win+L Lockscreen (with password)

Win+ "." Select Multidesktop

Win+"-" Zoom out

Win+B Select a tray icon

Win+C Smart menu or Charm Menu

Win+X  Right click on Start icon

Win+Enter Run Narrator (text reader)

• Mouse Commands

Right side of the screen: Smart Menu

Right click on Start Icon: Context menu

Left down corner Start Icon

Left high corner Multitasking viewer(after it show an image go down to left side screen It will open a complete Multitasking menu

Upside of the screen Resize windows (metro GUI)

Do you know other Keys\mouse combinations?

Conclusion  test:

1. Suspension-Hibernation works correctly
2. My package Asus Drivers Suite (SHE and Hotkeys Service) works perfectly
3. Metro GUI  is faster removing\unpin some icon and effects
4. Graphic problems with GAMES on Opengl and Directx (IEMGD 1.18 problem)
5. Ram usage  about 500MB in idle 5' min (with Z5xx series use only 2GB 800Mhz CL5)
6. Windows adjust directly Intel Multipler range:  x10 - x6 (depends from CPU load :1.33MHz to 798Mhz)
7. Classic Shell,an opensource program, can eliminate Metro\Modern UI and restore Win7 experience (note: Start icon is editable)
8. Windows Market has many apps and games (probably someone will works with GMA500)
9. MediaPlayer Classic works correctly (no problems with fullhd or HD video like win7)
10. OpenGL 2.0 isn't working (also in Windows 8 Preview,Windows 8, Windows 8.1 Preview)
11. Startup is faster then older MS OSs (removed Safe Menu from boot)

-Ram Usage in idle after 5 min: about 500MB with IEMGD 1.18 (I'm not still satisfied)

-Left Upper Corner (Recent App): Disabled by Default (before update 1 it caused BSoD)

-Restarting the PC: causes BSoD (Fixed in 2016 package. Not still available)

-Apps loading still some graphic errors: Minor bug (only for 2 seconds)

-Metro Apps doesn't use Hardware acceleration (video app is too low using CPU decoding on Z520)

-System is faster than Windows 7

-IEMGD OpenGL Hardware Accelerated doesn't work on Win 8 (use MESA3D opengl in Download section: them are software accelerated = SLOW in Atom Z520)

-Internet Explorer use wrongly the adobe hardware acceleration (use it for rendering and not for decoding)

-Update1 brings about 10% of optimization so better than Win 8.1

-Probably better performance on 1024x768 display or less on Metro (my panel is 1366x768)

-Windows 7 seems to have a better Adobe Flash Player speed (see section Browser-Adobe flash player)

[TEST Video]: Adele - Set Fire to the Rain (Live to the Royal Albert Hall) + Opera Browser 12.16

-ATOM Z520 1.33GHz 1366x768 display-

HD Large Window: 12 FPS

HD Normal Window: 13 FPS

480p Fullscreen: 13 FPS

480p Large window: 16 FPS 

480p Normal window 17 FPS

360p Fullscreen: 18 FPS

360p Large Window: 22 FPS

360p Normal Window: >24 FPS

ASUS SHE fixed for Z5xx devices compatible with Win 8\8.1 is available HERE

NOTE.After only 12 years, Microsoft XP Support is closed! No more Security Updates will come from Windows Update so Users start thinking to migrate to a newer OS or use a really good Firewall\Antivirus (it isn't the best choice).

Games Test Section

Play games with GMA500 is really hard but the old generation is almost playable (before 2005)
Consiglio: Usate giochi usciti sino al 2005, meglio se antecenti!
----------------------------------------------------------------------
Device: Atom Z520 1.74GHz Win 7 HP 32bit
Green: Full Working Game
Orange: Playable but not so smoothly ( <24 fps)
----------------------------------------------------------------------
Games list on Wiki: QUI
Note: Some games may crash with overclock or with HyperThreading enabled
Don't use Anisotropic filtering and maybe useful enable texture compressions (reduce images quality but can improve speed or may render playable higher screen resolutions)

• Alexander Demo LOW FPS
• Aliens vs. Predator 2 Single-Player Demo startup fail
• Alone in the Dark - Demo
• American Conquest Demo (resolution incompatible)
• American McGee's Alice Demo
• Age of Empires 2 demo (windows 7 incompatible)
• Age of Empires 3
• Anno 1503
• Babylon 5: I've Found Her (startup fail)
• Baldur's gate (also Neverwinter Nights)
• Bad DayLA Demo
• BATMAN VENGEANCE  LOW FPS
• Battle Realms Demo API Error
• Breed B-1 Homecoming LOW FPS
• Broken Sword
• Battlefield 1942 Secret Weapons of WWII Demo (playable)
• Call of duty
• Call of duty 2
• Carmageddon TDR 2000
• Chicago 1930 Demo mouse pointer invisible
• Colin mcrae 2 demo few graphic errors
• Colin mcrae 3 demo Low FPS
• Colin mcrae 2004 demo graphic errors
• Colin mcrae 2005 demo Low FPS
• Comanche 4 Demo
• Commandos Behind Enemy Lines (in Win95 compatible mode)
• Commandos 3 a little bit Low FPS
• Commandos Strike Force LOW FPS
• Command & Conquer Generals Demo startup fail
• Conflict Vietnam Demo
• Conflict: Desert Storm
• CounterStrike
• Delta Force Black Hawk Down Demo LOW FPS
• Delta Force Land Warrior Demo
• Diablo II Error Directx
• Evil Genius Demo
• F1 Racing Championship
• F1 Race Stars Startup Fail
• Far Cry Demo LOW FPS
• F.E.A.R.
• Fifa 2000 demo Startup Fail
• Fifa 2001 demo
• Fifa 2002 demo
• Fifa 2002 World Cup
• Fifa 2003 demo graphic errors
• Fifa 2004 demo graphic errors
• Fifa 2005 demo graphic errors
• Fifa 06 demo LOW FPS
• Fifa 07 demo LOW FPS
• Fifa 08 demo LOW FPS
• Final Fantasy VII demo (windows 7 startup fail)
• Ford Racing demo
• Ford Racing 2 (2003) Low FPS
• Gangsters 2 Demo startup fail
• Grim Fandango (need installer fix: works correctly only in windowed mode)
• Godfather (ilPadrino) Low FPS
• GTA 1
• GTA 2
• GTA 3 (remove frame rate limit)
• GTA ViceCity (remove frame rate limit)
• GTR Demo incompatible with Win7 for Starforce protection
• Halo Trial LOW FPS
• Hitman 2
• HomeWorld
• Knight Rider
• Indiana Jones and the Infernal Machine Demo
• Indiana Jones and the Emperor's Tomb Demo Incompatible with IEMGD XP\7 Driver
• Indiana Jones and the Emperor's Tomb Demo LOW FPS with IEMGD 7\8 Driver
• IperSoccer demo
• Iron storm demo startup fail
• Lee
• Juiced graphic errors
• Mafia few graphic errors->Disable W Buffer from Advanced Settings
• Master Rallye
• Max Payne
• Max Payne 2
• Midnight Club 2 Demo
• Midtown Madness startup fail
• Monkey island 3 (need installer fix)
• Moto gp2 demo
• MotoGP URT 3 Demo
• MotoRacer 3 demo graphic errors
• Need For Speed Hot Pursuit 2 Demo (few graphics errors)
• Need For Speed Porsche startup fail 
• Need for speed underground
• Need for speed undercover LOW FPS
• No One Lives Forever 2 (Official Demo)
• PES demo 3 Low FPS
• PES demo 4 Low FPS
• PES demo 6 Low FPS
• Prince of persia the sand time demo LOW FPS
• Privateers Bounty Demo directdraw doesn't have enough memory
• Railroad Tycoon 3
• Rome - Total War Demo LOW FPS
• Quake III
• Race Driver 2 Demo incompatibile win7 for Starforce protection
• Rayman
• Return to Castle Wolfenstein DEMO
• SBK 2001
• SCAR - Squadra Corse Alfa Romeo LOW FPS
• SimCity3000
• SimCity4
• SmokingGuns
• Soldier of Fortune DEMO
• S.T.A.L.K.E.R. Low FPS
• Starsky & Hutch Demo
• Stronghold Crusader
• Stunt GP Demo windows 7 incompatible
• Test Drive 5 (Windows 7 incompatible)
• The Italian Job
• The Sum of All Fears Demo
• Toca2 startup fail
• Tom Clancy's Rainbow Six Demo startup fail
• Tom Clancy's Rainbow Six 3: Raven Shield LOW FPS
• Tomb Raider 5
• UEFA Champions League 2004 - 2005 Demo LOW FPS
• Unreal 2 Expanded Multiplayer DEMO internal error
• Z Steel Soldiers (Demo)
• Warcraft III: Reign of Chaos
• World of Goo
• World Of Warcraft LOW FPS
• Worms Armaggeddon (colors bug on menu pages)
• XIII internal error
• Other:

          -ScuumVM dos emulator & old games OK!
          -Nintendo: Nes and SNES OK!
          -Nintendo DS emulator: Not found a valid GPU plugin
          -Nintendo Wii emulator: Dolphin LOW FPS
          -Nintendo 64: Project64 (need a good video plugin to reach best fps) OK!
          -PSX or PSOne emulator (working with ePSX with external software video plugin) OK!
          -PS2 emulator: slow FPS with PCSX2 and GPU plugin
          -PS3 or above FAIL HW limit
          -Xbox Emulator not tested but DXBX and Xeon have really few games compatibility
          -Xbox 360 FAIL HW limit
         -Probably working all EA games of 2002 like F1,NHL,Madden,NBA
         -Mu Online version 0.99c+
         -BlueStacks (plays Android apps) Low FPS check always for new update
         -OnLive (games streaming) Low FPS with 1.5GHz probably better with 1.80GHz
         -Gaikai (games streaming aka on-demand) Not tested
         -Intel AppUp (selected games) Not tested

If you want to share with us a working game write above
Thank you