I've lurked on this forum several times but I found this thread and had to make an account and post. One of my PC's is based off a Biostar A785GE and Regor 245 w/ 4GB of DDR2-800. I have had it OC'd stable on stock voltages and stock heatsink for years @ 3.33Ghz/230Mhz FSB/2Ghz NB-HT(higher due to FSB but can't remember exact number). These are great CPU's and the mobo isn't bad either. My RAM is some cheap PQI stuff which I think holds it back, but still I knew it would go higher, although never really gave it much over 235 FSB until recently.
So I got into Windows at 3.84ghz/265fsb/1800ht with voltages @ 1.2v for CPU-NB and 1.4v for CPU core, but Prime95 would fail after 2 or 3 test cycles. I think the stability was either northbridge heat-related (although it never went over 51C) or RAM-related, but I did reduce the RAM from 800 to 667 and then 533 with no success.
So I've brought it down to what is stable. On stock cooling and 1.4Vcpu/1.2NB I've got it running prime95 with no errors at 3.48Ghz/2160mhz-HT/240mhz bus, which puts my RAM right at its normal 400mhz(x2) for ddr800 when set to 667mhz. That seems to be the most I can get without any prime95 errors. I could run it higher and not notice but prime95 would eventually error out.
I see some are getting more speed out of these things, and some get less. Is watercooling about the only way to get more? Or am I just sitting right below the threshold of my RAM or mobo? Funny thing is if I lower it back down to 3.33Ghz I can set HT link to 2000mhz and it ends up at about the same NB clock, so maybe it's the NB and not the RAM holding it back. Raising voltage seems to have very little effect on overclockability, as well.
Oh and here's the data in the requested format in case you want to add it:
CPU: ATHLON II X2 245
CPU Clock: 3480
HTT Clock: 240
CPU Multiplier: 14.5
CPU Voltage: 1.4
CPU-NB VID: 1.2
NB Clock: 2160
NB Voltage: 1.22
HT Link Frequency: 1800
RAM Speed: 800
Motherboard: Biostar A785GE
CPU-Z Validation Link: na (validation error code 99)?
And temps, which are like room-temp currently lolEdited by adrenatek - 2/24/16 at 9:06pm