I'm trying to push my Opteron 170 which runs rock solid at 2.7GHz @ 1.45v. This is if I have 270 x 10 selected, but if I try 300 x 9 I can't get into windows. Now I'm using a memory divider in both cases to keep the memory around 200MHz, which has timings that were stable at 216MHz, so I don't feel that it's the memory that is struggling (correct me if I'm wrong though) From what I can gather the DFI board should be good for HTT speeds over 275, but I'm not having much look, mainly because I don't know which settings to change. Increasing LDT voltage, Chipset voltage, and CPU voltage all have no affect. Do I need to change the memory timings when increasing the HTT or does it only affect the memory? Anything else I can play with, as I need more HTT to push the chip further. All suggestions greatly appreciated. TIA Dan.
Also try a different RAM multiplier, it seems some boards have a problem with certain ratios, my board never worked when I tried dropping my old OCZ ram down to 200MHz to keep tight timings at around 300MHz, it worked fine running 1:1 though.
I forgot to say that I've dropped the HT multi to 3, but thanks for the suggestions, keep 'em coming I'll try a different divider tonightand see where I get.
Which BIOS? Highly recommend 623-3. Could also try turning off DEP in Windows (if using SP2) - change the /noexecute=optin to /execute in the boot.ini
RAM is at 1T at the moment, I can try 2T tonight. I think I'm on a modded 7xx bios, so I'll try the 623-3 as well. Looks like I've got a few things to check out, so with some luck, 280x10 will be achievable tonight
i'm also having the exact same problem, also using the 700 bios off cd. Stock volts up to 2.65 stable, i can boot windows at 2.7 but prime fails after about 3 mins, if i try and go any higher with fsb/voltage windows does not boot, neither does 300x9.
Just wanted to thank every one for their suggestions, as I'm now running at 300 x 9 (I'll try for 280 x 10 at a later date) I'm now running with the 623-3 bios, and most things are set to auto in the bios (which they weren't before), but everything appears solid.
