bungfritz

my rram settings are as follows in the genie bios DRAM Frequency Set............................ - 166mhz Command Per Clock (CPC)....................... - Enable CAS Latency Control (Tcl)..................... - 3.0 RAS# to CAS# delay (Trcd)..................... - 04 Bus Clocks Min RAS# active time (Tras)................... - 08 Bus Clocks Row precharge time (Trp)...................... - 04 Bus Clocks Row Cycle time (Trc).......................... - 09 Bus Clocks Row refresh cyc time (Trfc)................... - 16 Bus Clocks Row to Row delay (Trrd)....................... - 03 Bus Clocks Write recovery time (Twr)..................... - 03 Bus Clocks Write to Read delay (Twtr).................... - 02 Bus Clocks Read to Write delay (Trwt).................... - 03 Bus Clocks Refresh Period (Tref)......................... - Auto DRAM Bank Interleave.......................... - Enabled DQS Skew Control.............................. - Auto DQS Skew Value................................ - 0 DRAM Drive Strength........................... - weak DRAM Data Drive Strength...................... - 50% Max Async Latency............................. - Auto DRAM Response Time............................ - Fast Read Preamble Time............................ - Auto IdleCycle Limit............................... - 256 Cycles Dynamic Counter............................... - Disable R/W Queue Bypass.............................. - 16 x Bypass Max.................................... - 07 x 32 Byte Granularity........................... - Disable(4 Bursts) similar to the one angry_games posted for guide to nf4 and corsair ram

again thanks for the help everyone. Now i tried testing each individual ram stick and here's the results i got from memtest. Speed, 3.0, 4, 8, 4 1T Running at 6 X multiplier, orange ram slots Ram voltage = 2.8v Channel #1 Ram # 1, 292 mhz Ram #2, 295 Channel #2 Ram #1, 282 Ram #2, 283 Running in dual channel =251 mhz Changing the Divider to 10X, Running 166mhz ram divider CPU= 2.8ghz Ram= 230 Just a question, so why is it that when the ram runs at dual channel, that there is such a sudden drop in ram overclockability?

yea thanks for the replies. Yea, ive already been to the NF#-Ultra tweaks page and i've upped the ldt to 1.75 volts, tried using the orange ram slots (which made it even worse, it wouldnt even boot), upped the vdimm and tried vcore increases. I've also tried the ram timings from angry_games website for my ram but that hasnt done much either. Whats wierd is that im now running the comp at 3 ghz, and while it still fails prime after around 1 hr, it was more stable than the computer at the exact same settings with 200fsb. Whats even more interesting is that with the default cmos settings, the compute wont even boot, whereby i have to take out one ram stick to get into the bios. Think this situation is really bizzare. The settings which i have tried so far are: Default cmos, everything on auto, computer wouldnt boot. Had to pull one ram stick which allowed me to enter into the bios. Upped the ldt voltage, the ram voltage and the computer booted however would bsod half way into windows. Changed the ram from the yellow to orange slots (which was recommended for TCCD) and the computer wouldnt boot. After that i adjusted the ram timings to the list as per the values that angry_games had. Loaded into windows but soon bsod. Upped the ram voltage to 2.9 v @ stock and still not stable. From there, i upped the cpu voltage to 1.425 (which is pretty riduculous since its running at stock speeds) and it still bsod. Relaxed the ram timings further, currently running at 3.0 4, 8, 4 2T, and still would bsod. After that i got really frustrated. From there, i decided to take a wild stab and see how well my opteron overclocked even though it wasnt stable at stock speeds. Since i got a good stepping, i went straight to 299 fsb, and after booting into windows, it actually didnt bsod like it did at stock speeds. So i've left the settings as it is but again its still not stable. Any help would be appreciated. Current settings are as follows: AMD Opteron 146 CABE 0540FMPW running @ 2.99ghz @ 1.425 volts Corsair ram currently running with 2/3 divider @ 3.0 4,8,4 2T weak drive settings running at 2.9V FSB 299 LDT voltage: 1.75 HT: 3X AGP: 67mhz

For some reason, my computer keeps on getting bsod's in windows and I was wondering if this problem could be related to my ram that im using. I've heard that there have been many issues concerning corsair ram and incompatabilities with DFI mobos. ATM, everything is set to stock, and my suspiscion is due to the fact that even at stock settings, prime fails after a couple of minutes when using doing the ram stress test. Tried switching back to the 711 bios, but that only made things worse. Tried using only one stick, and switching slots, and it made no difference. Regards David

damm so you think its a problem with the mobo? Would a bios update fix the problem? So far i've tried the c19, and the 711 and 705 bios with no luck. Which other bios's should i try for my cpu/mobo combination?

well i don't know that much about overclocking it through the roof, i bought this cpu from someone else. As for my own overclocking experience, i've set the settings in the bios and not through software such as clockgen. Just thought that the problem could be motherboard related, as the cpu seems to be able to handle the oc. Thanks for the advice though Regards David

anyone with any advice?

hey there, im currently having a wierd problem. I've got my opteron running at 300 fsb, and its very stable running prime95 for a day straight and stuff. Only problem is when im cold booting from the computer, when loading into windows, the bios always reverts back to 200fsb. After this, if i reset the computer, i'd get the correct 300fsb which was set in the bios. Does anyone know the reason to why this is occuring. Tried the 705, 711 and currently using c19 bios, all have same problems regards David

hrmm 1.55 volts at 2.8 ghz. Temp @ stock voltage is around 33-34 vs 38 for 1.55 volts.

yea, i just tried the c19 bios, don't think my comp likes it. The comp wont boot into the bios now, so i guess 705 is the way to go. But as long as i know the temps arnt as high as that displayed on mbm5, im happy

Hey there, i got an opteron 144 running at 1.55 volts water cooled. I am just wondering why my load temperatures are soo high. Running prime 95 with 100 % cpu load, i get reported temperatures from mbm5 of 45 degrees. Im guessing ambient room temp is around 20 degrees max. Looking at these results, they seem worse than many air cooled solutions. Does anyone have any opinion with this? BTW, my water cooled setup comprises of a zalman wb3 water block running on a bix radiator, so it cant be that bad.