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thuGGer

overclocking the 148 Opteron

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Here is the best over all overclock for the 148 Opty.

CPU fsb=250x11 for 2.75 ghz,

HTT multiplier X4,

vcore 1.45,

DIMM 2.85 V,

RAM divider 333 (5/6) for 196 mhz.(392 total) frequency,

timings 2,3,3,7, or 2,3,2,6, thats with good ram. could go tighter.

why is it a good overclock? this clock speed is just under FX 57 speed. its 2750.8 MHz (original: 2200 MHz, overclock: 25%)

CPU FSB 250.1 MHz (original: 200 MHz, overclock: 25%)

and my ram loves these clock speeds with Dual DDR393 2-3-2-6 CR1 43.7ns before it was 48.3ns with 2,3,3,6,@ Dual DDR400

 

idle temps from 29c-31c, load temps 38c-44c, and no bottleneck :drool:

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My 148 should be here tomorrow. I'm shooting for 300x10 or 273x11 with IHS removed and water coolling. I already have some DDR600 RAM so it should run 1:1 either way.

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the 148's are nice oc'ers, with some memtweaking you can go above 2750, mine is rock solid at 2900Mhz and there are many that get 3000 and above.

dropping your multi to 10 or 9 will help if you have some good tccd ram that can hit 300 or above.

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@ rapty, that is one sweet chip....

i may be interested...send me a pm with a price if you decide to sell.

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the 148's are nice oc'ers, with some memtweaking you can go above 2750, mine is rock solid at 2900Mhz and there are many that get 3000 and above.

dropping your multi to 10 or 9 will help if you have some good tccd ram that can hit 300 or above.

 

 

I had my opty @2950Mhz, but to much volts, and too hot for me. Plus my HyperTransport Clock is still 1000 MHz . Good core speed and ram speed is for me so, balance speeds is what i go for to keep my opty happy for very long time. :nod:

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My opty 148 does 2910 at 165fsb and 1.45v. 3000ghz and prime fails after about 2 hours.

 

 

You would have too raise the volts up at that speed. Try 1.50-1.55, and you need a good cpu cooler to.

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Try sending pm now.

 

Not a bad OC how is it in prime?

i dunno if you were asking me, but here is my prime screenie...

 

prime 95

 

i lowered voltage to 1.525 as well

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