I had been looking for oc help for my new mobo, related to FSB and RAM but believe I figured it out and just wanted to share what I came up with. I've always been use to only having a FSB adjustment available but with my latest build, I have a multitude of oc'ing features at my fingertips.
My goal? No major temp increase with a noticeable increase in system perforance, which I believe I achieved. And having my FSB:RAM ratio at 1:1. A member here, sorry I do not recall who, highly rec' that I run my FSB:RAM ratio at 1:1 on my Barton system years ago and after doing so, my system ran smoother and better than ever.
My settings now:
Core Speed: 3.2 GHz (from 2.6 GHz)
Multiplier: 16
Bus Speed: 200 MHz
HT Link: 1000 MHz
HT Clock: 1000 MHz
HT Width: AUTO
HT Speed: 16-bit
RAM: 400 MHz 4-4-4-12 tRC 23 2T
Vcore: 1.4 V (from 1.3 V)
RAM Voltage: 1.9 V
CPU Temp: 43.5C
Mainboard Temp: 28C
Core #1 Temp: 4.8C
Core #2 Temp: 20C
Related - EVGA 8800GS
Stock Speed Settings: 550|1375|800
Core Temp: 44C
Ambient: 38C
Fan Speed: 50%
Monitoring closely, took CPU to 3.4 with no stability issues but since I didn't want to maintain that, there was no reason in going any higher for experimental purposes. I can go 3.0 GHz with no voltage increase and may do that, haven't decided yet. The timings for the RAM I listed are the tightest I have been able to get. OCZ warrants this RAM for 2.1-2.2 V and when I was attempting tighter settings, I did set the V up to 2.1 just so I knew voltage wouldn't be hampering my trys.
Even though I'm still unclear whether 42.5 is my idle temp for my cpu (5000+ Black Editions are noted for falsely higher than actual temp readings) or not, I only noted a 1C increase in temp between 42.5C with 3.0 GHz and 43.5C with 3.2 GHz. Individual core temps only rose by 0.5C each.
You'll notice I did not increase any voltages on the mobo, my HT is running perfectly on'spec and there was no reason to. Why heat things up more with no reason, when NB's do their own job fine of running warm, lol.
Well, that's where I'm at. I notice the difference between 3.0 & 3.2 GHz but not necessarity enough to warrant an increase in voltage or the minor 1C increase in temp. 3.2 GHz does appear to be the sweet spot for this CPU.
If you have any suggestions or notice any changes you think I should make, please let me know, they would be appreciated. Otherwise, I help my post helps other Abit AN78GS owners out.
Cheers!