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Pci-express Link X1 Problems

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#1 samork


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Posted 26 January 2007 - 04:06 PM

New build. (Jan 20, 2007)

1. asus p5b deluxe wifi-ap
2. e-geforce 7900 gs ko
3. corsair ddr2 800(pc2 64000)
4. enermax ps elt500awt

updated motherboard bios to (0910) today 1-26-07

I am having graphic interface problems with the pci-e slots.

Using the secondary slot , I can run link width x4 but I have never been able

to run any faster than x1 using the primary slot

I think there is something wrong with my bios settings but what??

Moderator Edit: Moved topic to more appropriate forum. ~ Animal

Edited by Animal, 26 January 2007 - 05:10 PM.

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#2 Mr Alpha

Mr Alpha

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Posted 27 January 2007 - 05:57 AM

This is a issue some have seen while overclocking the P5B. It has happened on other P965 boards as well. A bunch of different fixes has been found, most of which only work for some.
  • Set PCI Express Frequency to AUTO
  • Set the NB and SB voltages manually, instead of having them on AUTO.
  • If previous fails, bump the PCI Express Frequency to 101, 105, or 110Mhz (not recommended, can cause corruption)
  • If all fails, flash back to the 614 BIOS

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