I'm currently running socket 939 manchester 4600+ X2 on ASUS A8n-SLI with 4x512 DDR400. I initially tried to overclock to 2.8 with voltage at 1.45 (255mhz with 11x multiplier which is weird I thought I couldnt change multiplier) and cant get it to boot at those settings. I also set HT multiplier to 4x. I left RAM alone and in cpu-z it says it's running at like 128 mhz or something. I dont know it that's right or if I'm interpreting it wrong.
I'm newer to overclocking and havent figured it all out yet. What am I doing wrong here?
Could someone tell me what settings I should set some things at? For example in my bios I can adjust my memory timings. I thought that you couldnt adjust mem timings. Can I set it to 1t timings and boot? I thought that 4x512 had to run at 2t. Apperantley my bios gives me the option to change this.
Should I be setting my multiplier higher like 12 or 13x or lower like 9-11 and just lower my HT multiplier?
That's the thing... I am running a thermalright xp-90 with a 92mm fan on it. Although I think I need to turn the fan speed up a notch. Speedfan says it is running at 2000 rpm. Is that good or too slow? How can I turn it up? I tried to in speedfan and it didnt work.
I also lapped my heatsink and am using the right amount of arctic silver 5 thermalgrease.
Get this... Nothing passed with prime95 except stock. I ran my cpu at 205mhz with the HT multi at 5 and didnt touch the ram or any voltages and in failed prime95. I dont get it... something is seriously wrong.
My old 3500+ overclocked to 220 mhz without touching anything except FSB.
Well... assuming that you are talking about my settings and not hardware... I've reset the bios because I was getting frustrated and wanted to make sure that I was stable at stock settings. So I ran prime 95 (is there anything else that is good for stability? super pi doesnt seem like a stability test seeing is I ran it when cpu was at 2.9 and it was failing prime 95 at that setting) for 3 hours and it was stable at stock.
Anyhow when I was overclocking I set cpu multi to 12x... which is weird that I could do that considering I thought all AMD X2 cpus had locked multi except black edition. So I set my voltage to 1.4 (1.45 was max and it was too hot running idle at nearly 45c) and cpu to 245 mhz. I set HT to 4x and pci-e to 101mhz. RAM was set to 333 or next lowest I think 266 but never over 400mhz in nvidia control panel (which is weird... I thought that cpu-z told the mem bus frequncy but it's a different value like 160mhz... what does that mean)
Those are the only setting I changed... I dont know why it's so unstable considering so many people are getting such high overclocks with smaller cpus like the 3800.
I'm going to keep trying though... need some input!