Tech ARP - How To Fix The PCI Express x1 Bug Rev. 4.3

	Date :	23 September 2015
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	Category :	Guides
	Author :	ChampionLLY
	Revision :	4.3
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How To Fix The PCI Express x1 Bug Rev. 4.3

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The Effect Of The PCI Express X1 Bug

The Testbed

Processor	Intel Core 2 Quad Q6600 - overclocked to 3.2 GHz (355 MHz x 9) - 8 MB L2 cache
Motherboard	ASUS P5B-E Plus Rev. 1G - BIOS 0627
Memory	Two Kingston 512MB HyperX DDR2-800 modules - Overclocked to 888 MHz, 4-4-4-12 2T
Graphics Card	MSI 8800GT 512MB OC T2D512E - 660 MHz core, 950 MHz RAM - NVIDIA ForceWare 169.28
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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Page	How To Fix The PCI Express x1 Bug
1	Possible Solutions, How To Check If You Are Affected
2	The Performance Effects Of 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. Various corrections and updates throughout the guide.
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. Added two new methods on how to fix the PCI Express x1 bug.
14-03-2011	4.0	Added three new motherboards and five new graphics cards to the list of affected hardware. Added two new methods that have been proven to fix the PCI Express x1 bug. Updated the list of methods that fail to fix the problem. Numerous changes throughout the article.
16-05-2011	4.1	Added a new motherboard and a new graphics card to the list of affected hardware. Updated the methods that have been proven to fix the PCI Express x1 bug.
25-11-2014	4.2	Updated the methods that have been proven to fix the PCI Express x1 bug. Added a new motherboard and a new graphics card to the list of affected hardware. Compressed the guide into two pages.
23-09-2015	4.3	Updated the methods that have been proven to fix the PCI Express x1 bug.

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