The Effect Of The PCI Express X1 Bug
The Testbed
Processor |
Intel Core 2 Quad Q6600 |
Motherboard |
ASUS P5B-E Plus Rev. 1G |
Memory |
Two Kingston 512MB HyperX DDR2-800 modules |
Graphics Card |
MSI 8800GT 512MB OC T2D512E |
Hard Disk Drives |
Hitachi 160 GB Hard Disk Drive SATA 3Gb/s |
Operating System |
Microsoft Windows XP Pro SP2 32-bit |
Power Supply |
CoolerMaster iGreen 500W |
Graphics Card Settings
Settings |
Core Clock |
Shader Clock |
Memory Clock |
Driver |
Stock Clocks |
660 MHz |
1650 MHz |
950 MHz |
NVIDIA ForceWare 169.28 |
Overclocked |
712 MHz |
1728 MHz |
1026 MHz |
NVIDIA ForceWare 169.28 |
Impact On HD Video Playback
I tried a handful of full HD 1080p movie trailers from Apple.
Although they were CPU-rendered, the PCI Express x1 bug caused the HD clips to slow down so much they looked like PowerPoint slideshows, with lots of frames skipped.
3DMark 06
On average, 3DMark06 score increased by a staggering 275%!
Company Of Heroes
Though not as significant as 3DMark06, but the average fps was boosted by 183%.
Crysis
Crysis enjoyed a 223% increase in framerate, as it is a very GPU intensive game, especially at the High settings and high resolution.
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How To Fix The PCI Express x1 Bug |
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Date | Revision | Revision History |
22-03-2008 |
1.0 |
Initial Release. |
26-03-2008 |
2.0 |
Added a section on How To Check If You Are Affected. |
28-10-2008 |
3.0 |
Added a new method on how to fix the PCI Express x1 bug. |
11-08-2009 |
3.1 |
Added two new methods on how to fix the PCI Express x1 bug. |
03-09-2010 |
3.2 |
Added three new motherboards and four new graphics cards to the list of affected hardware. |
14-03-2011 |
4.0 |
Added three new motherboards and five new graphics cards to the list of affected hardware. |
16-05-2011 |
4.1 |
Added a new motherboard and a new graphics card to the list of affected hardware. |
25-11-2014 |
4.2 |
Updated the methods that have been proven to fix the PCI Express x1 bug. |
23-09-2015 |
4.3 |
Updated the methods that have been proven to fix the PCI Express x1 bug. |