8800GT PCI-E link only running at x1 speed

[sam1]

Hello. My recently-bought eVGA 8800GT (SC BIOS) has problems running at full 16x PCI-E speed. Every time I boot the computer, the PCI-E link is only running at x1 speed. However, this problem is fixed only after reboot. So this is what I found: I can only reboot computer, after turning on computer, to get PCI-E to 16x speed. I don't know if this shall continue to exist in the long run. Does any one have any solutions to this?

My specs:
E6300 @ 2.8GHz 1.225V
8800GT 650/950/1620
Gigabyte 965P-DS3 rev 1.0
PC Power & Cooling Silencer Quad 750W
OCZ Gold-XTC DDR2-800 5-5-5-12 2T 1.8V
Windows XP Pro SP2

My old X800XL never had this problem.

 

[daaustin]

had same problem have a gigabyte 965p-ds3 rev 3.3 (same motherdoard just came with latter bios) worked fine with a nvidia 8500gt got a asus 8800gs scores were less than half what i was expecting used trial and error after a whole day found that by raising the voltage 0.1v on the PCI-E OVERVOLTAGE CONTROL in the bios in the mb intelligent tweaker section this fixed my problem i think the gigabyte motherboard may be supplying less voltage than needed by the 8800 series cards..... try 0.1v or 0.2v cant remember if it goes any higher but be carefull and watch the temps on the graphics card no problems on mine but have large case +6fans
scores in 3d mark 06 went from 4000 or so to over 11000 when overclocked hope this helps

 

[sam1]

The mobo BIOS I'm using is F12, and card BIOS is 62.92.24.00.02.

You mentioned raising PCI-E voltage, does that do any harm to the card?

 

[daaustin]

have had mine running at +0.1v for 2 months now no trouble have had no increase in temp at all and i am running the 8800gs overclocked at 675 core 1700 shaders 1900 mem about a 20% overclock all at safe temps and stable but the choice is yours , but you seem to have overclocked your 6300 to 2.8 nice overclock i have my e4300 at 3ghz 9x334
try +0.1v see what happens this may not be your problem but it worked for me good luck.......................

 

[sam1]

Overvolting PCI-E by 0.1V caused my computer to not POST. Now it's set to normal.