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As I have now made the plunge into C2D on this mobo I know I will be discovering a lot of issues and solutions. Hence this thread. Although the Abit Fprum is a great source for this info I wanted to keep the Home Fire burning here and start an Abit-Owners Support Group LOL.

First off until you Flash the BIOS to the latest from the Abit site (13) You will be limited below 3 Ghz for a stable OC. I believe it has to do with enhanced support for the Conroe CPUs. Whatever it was it was like night and day--went from struggling at 2900 to a stable 3060 instantly.

Secondly BIOS incorrectly sets the SPD timings for some RAM too tight which will create issues with some RAM--be sure to navigate to Advanced Chipset Options and set all the relevant options manually. I set my G. SKill DDR2 677 to 5 5 5 15 and got a much more stable run through Orthos.

Third thing I just discovered is that the BIOS incorrectly sets the DRAM refresh rate and that increasing that rate will yield stability. For example my BIOS sets the tRFC refresh to 35 ms. AT 3060 mhz I was passing 9 hours of Orthos but watching visual defects in Canyon Run on 3DMark06. Reinstalling drivers, under and overclocking the cards did nothing. It was some sort of data transport error making entire segmentsof the benchmark jump back and forth. The overall scores where not really affected (+/- 200 points). However after increasing the Refresh Cycle Time to 40 for 35 I was able to run the benchmark without issue and get a score about 100 points higher than any previous attempt.

There are alternative BIOS available that are not supported by Abit--use at your own risk type of deal--and I will post back what benefit/dtriment these have after thoroughly checking them out. Apparently one of them will add a 1333 NB strap. As those of us pushing the limits have found the NB is a real devil--an sometimes by using a higher strap you can get a better run at the FSB. Another Beta BIOS I have yet to check is supposed to add additonal RAM speed options to the 1066 strap. This would be handy for those of us not yet in possession of DDR1200 RAM... allowing the RAM to be run considerably slower than in the standard BIOS.

Another thing peculiar to this board is that messing with the voltage is definitely a last resort. Unlike any other board i have clocked this one likes to stay on auto for as long as possible. Increasing the voltages to early in a run definitely created instability--failures to boot or post--so keep the trigger finger off the Vcore, Chipset and even RAM until absolutely required. At 3060 I am still at stock voltages throughout.

I encourage any of us with this motherboard to post up this thread with issues and solutions. Maybe you have some solutions for those of us with issues!

At this time I am still attempting to hit the limit of the motherboard. With the current BIOS I am running I will have to use faster RAM to get any farther (using DDR667) So my next move will be to try the beta BIOS and see if that lets me push the FSB a bit more with the RAM I have on hand.


Stay Tuned and Lend a Hand if you Can!
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Shop Dog
(13 items)
 
 
CPUMotherboardGraphicsRAM
E8400 Asus Blitz Formula SE HD3870X2 G Skill 2 x 2GB DDR2 800 
Hard DriveOptical DriveOSMonitor
Velociraptor 150GB LG DVD Burner Vista Ultimate 64 AOC 21.5" LED 1080p 
KeyboardPowerCaseMouse
Deck Legend Silverstone 750 Modular OverClock Edition Lian Li V1100 Logitech Trackball 
Mouse Pad
Nope 
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Reply