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PCI Express x1 instead of x16 :(

post #1 of 30
Thread Starter 
Whenever I overclock, my PCI Express runs in x1 mode for my 8800. At stock (CMOS clear) however, it runs at x16. So in essence, I get better performance without an overclock. How do I fix this? I tried setting my PCI-E frequency to 100, 102, and 105. None of this has worked. If you have any questions of other settings just ask. I'd really like to get this fixed so I can overclock!!! Thanks XD
post #2 of 30
You need to watch the voltage on the SB, you are going to need around 1.6v for ~320-400mhz FSB. If you do not have enough, it usually trips the 'lock' every time. Another thing to check is the SB settings in the chipset portion of the BIOS. Leaving settings for the SB on Auto, and adjusting the voltage for the SB will fix the issue. Most of the time, I had to unplug my cpu for a couple minutes, then restart and adjust, before the 'lock' would go away.
post #3 of 30
Thread Starter 
Yeah, I have 400FSB on an 8x multiplier. I just set my SB Vcore to 1.6 and no luck.
post #4 of 30
Once the lock is tripped, you need to unplug your rig for a few moments. Then when restarting, try the settings. The hardest thing about the 'pci lock' is un-doing it, 1.6v for 400FSB is fine. Try 108 for your PCI-e Freq...

Which BIOS are you running?

I am running the 1004, with these settings.

367mhz FSB, 9x multi
pci-e freq- 114mhz
NB- 1.45v
SB- 1.6v
ICH- 1.02v
--------------------
SB setting-

PCI-e link speed- Auto
post #5 of 30
Quote:
Originally Posted by GaarBear View Post
Yeah, I have 400FSB on an 8x multiplier. I just set my SB Vcore to 1.6 and no luck.
using 400 x 8 for an E6600 would actually bump the fsb up to...

(9 / 8) x 400 = 450Mhz FSB (1800Mhz Total)
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post #6 of 30
Sounds like a bios issue....I had the same problem with my P5B
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post #7 of 30
Quote:
using 400 x 8 for an E6600 would actually bump the fsb up to...

(9 / 8) x 400 = 450Mhz FSB (1800Mhz Total)
No it wouldnt. It would change the NB's operating frequency to 450mhz...not the FSB. There is a difference.
post #8 of 30
Thread Starter 
Bios: 1101

CPU Settings
Modify Ratio Support: Enabled
Ratiom CMOS Setting: 8
C1E: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM Function: Disabled
Execut Disable Bit: Enabled
PECI: Disabled

Jumperfree Settings

AI Tuning: Manual
CPU Frequency: 400
DRAM Frequency: DDR2-800MHz
PCI Express Frequency: 100
PCI Clock Synchronization: 33.33MHz
Spread Spectrum: Auto
Memory Voltage: 2.15v
CPU Vcore Voltage: 1.4 (There's a .05 Vdroop)
FSB Termination Voltage: Auto
NB Vcore: Auto
SB Vcore: 1.60v
ICH Chipset Voltage: Auto




I also have Static Read Control disabled in the North Bridge Settings. My PCI-e Link Speed is Auto.


Anyone have any ideas?!
post #9 of 30
Spread Spectrum: disabled
Memory Voltage: 2.15v
CPU Vcore Voltage: 1.4 (There's a .05 Vdroop)
FSB Termination Voltage: 1.4v
NB Vcore: 1.45
SB Vcore: 1.60v
ICH Chipset Voltage: 1.02v

----------------

Try the above settings, my guess is that your 'auto' settings are preventing you from hitting it.
post #10 of 30
Try 110Mhz on the PCIe... That is what has fixed this issue in the past.

The only problem is, running the PCIe at 110Mhz may be dangerous. I really don't know.
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