Originally posted by: doubleOseven
A bad ide cable can certainly do that. The other thing to have played with, if you hadn't already, is the BIOS's IDE Drive Strength setting.... some people have increased it, and found that to help.... I keep mine at normal, and it seems to work ok.
I use bios version P1.80, and find it to be best for my needs -- stable.
I'm using P1.80 now. Man, I just went in circles with flashing the bios on this mb. From P1.80 (Turned out my PS/2 mouse was dying)>P2.0>P1.70>P1.90 (This one gives me the best oc)>P2.0(I don't know what I was thinking here, probably a little frustrated with the quirks )>P1.80 (Pulling hours of Prime95 again )
I've always had IDE drive strength to Ultra High. I thought it was the one causing the crc error. But there was no difference with the Low setting, just a little slower installing games and transferring large data files.
Do you have the APIC HTEL Table to Enable or Disable? You also notice that when you disable PCI Delayed transaction, the pc wouldn't boot to windows?
So far the best settings to have, when ocing past 300fsb is this:
*PCI-E Sync with Cpu
*V-Link to Fast
*Ide Drive Strength to Ultra High
*Setting the ram timings manually. Non of them in auto
*These 4 settings in Advanced Memory (CLKBUF BUFIN_A Skew set to 150ps) All 4 of them set to the setting of 150ps