DFI Expert and Opteron Overclocking

[Crism]

I can get my Opteron 148 up to 2.8GHz but I want more!!! Memory is Corsair PC3200XL at 400mhz doing 2-2-2-5 as advertised. If I get to about 2.95, Prime gives me a Rounding .5 expecting .4 or less error.

Here are the settings:

FSB 269Mhz
LDT/FSB Freq Ratio - Auto
LDT Buss Transfer 16x16
Multiplier - 11.0x
PCI eXpress Freq - 100mhz
Cool'n'Quiet - Disabled
CPU VID Startup Value 1.500v
CPU Core Voltage - 1.44v
LDT Buss Voltage - 1.43v
ChipSet Voltage - 1.65v
DRAM 2.5v Voltage - 2.82v

CPU Vid Control + Special Control - Auto
LDT Voltage Control - 1.40v
Chipset Voltage Control - 1.65v
DRAM Voltage Control - 2.92v (.1 undervolt actual )

All Temps are below 39C idle on startup. Around 37-39C.

3.3v Rail = 3.44-3.46v
5.0v Rail = 5.02v
12.v Rail = 12.41v

DFI Expert
Opteron 148
2x 512MB Corsair 3200XL TCCD
Hiper 580W PSU
2 Hard Drives
eVGA 7800GT
AMD Stock cooler with AS3 (uber!)


Anything I should edit? Maybe down the multiplier and up the FSB? What would get me the highest O/C?

 

[InorganicMatter]

Adding voltage on CPU and RAM fixed that problem for me, but also introduces the problem or more heat. Your call.

 

[Crism]

Would I be better off loosening up the timings, reducing the multiplier, and going all out on the FSB at 1:1?

 

[DangerIsGo]

Yeah definitely try upping your vcore

 

[Crism]

Ok well I don't think I'm doing too bad

Opteron 148 CABYE 0543FPWM @ 2.9GHz - Priming Stable

SmartGuardian Indicates - 36C/56C as MINIMUM and MAXIMUM temps on the STOCK COOLER

Vcore - 1.47v
LDT Bus - 1.29v --- no clue what this does. I had it at 1.4v and it was red before
DRAM - 2.76v - I gotta up this a little
Chipset - 1.61v

This 7800GT is weird though. My friend's N515 pre-sets in Coolbits at 500/1150. My N516 gets 475/1100. If I try to increase the core, I get tearing on the screen. Any ideas?