[quote name=\'ohm\' post=\'82878\' date=\'Jan 18 2006, 08:54 AM\']If you want to overclok then you should use corsair ram not kingston because corsair garantee their memory even you overclok it[/quote]
no ddr400 would guarantee an overclock. I usually recommend ddr500, because while it may not give the best latencies, you at least can overclock to 500 (25% fsb boost) keeping within the memory spec.
I used a similar system for a pc i built for my GF last christmas. I overclocked the chip from 1.6GHz to 2.35 on an asrock 6100 based mobo, and that board doesnt even let me adjust voltages. I clocked it down to 2.2GHz, and it's been running smoothly, in a rather hot climate, though while here, it never even broke 40C overclocked on the stock sink.
your chip has a multiplier of 8; your ram runs off the bus in a 1:1 ratio normally.
The base bus is 200MHz, giving your 2800+, a speed of 200*8=1600MHz, and ram a 200*2(for ddr) 400MHz. The HTT multiplier is x4, giving a hypertransport bus speed of 200x4=800MHz
step 1
define a stability test.
download prime95
http://www.mersenne.org/freesoft.htmrun the torture test for 10 mins to check your cpu each overclock. When running have a temp sensor up so you can make sure you're not going to kill your chip.
step 2
Increase the base bus speed by 15 MHz. This is available through the bios.
that would make the chip run at 1720MHz, and memory at 430MHz (asrocks bios applies a ratio to the memory on trying to overclock it. I was only able to see the true speed running cpu-z).
If you fail on the torture test, freeze or blue screen, then try these one at a time
a. drop the memory speed to 333/266/200, or apply a ratio that does that. 333 really means a 5/6 ratio, multiplied by the memory speed - so if 430 is unstable, a 5/6 ratio means you'd be running 358 MHz.
b. drop the HTT multiplier to x3 (HT bus is very sensitive)
c. increase voltage to cpu (vcore) by the next point
keep a note of your temps. If it seems high, back down.
