Also OCing for first time

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HesusMD

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Dec 26, 2014
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Hallo

I wanna OC my old pc, which has e8400, asus p5k and I just ordered Freezer 7 PRO Rev.2 to cool it. It's been running at nominal frequency so far, but I wanna get it up to 3.6 GHz as I read that's like easy peasy to do, and I don't have to really increase the voltage.

So, the only thing I need to do is increase the CPU FSB to 400 Mhz in BIOS and that's all? And of course watch the temperatures while stress testing? Don't need to also OC the RAM?

Also, not increasing voltage doesn't really shorten CPU life, I read somewhere? If wanted to try 4Ghz, how much volts should I use and why exactly that amount?

thank youu
 
Solution
Tradesman1
Sounds like you have done the research, it may take a CPU voltage (vCore) increase for stability, but you should have plenty of leeway, the 8400 has a max voltage listing of 1.3625 and it shouldn't take anywhere near that. You picked a good cooler for it so should be fine, Ive run 8400 up around 4GHz. Just be sure and monitor temps
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Tradesman1

Tradesman1

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Jun 5, 2013
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Sounds like you have done the research, it may take a CPU voltage (vCore) increase for stability, but you should have plenty of leeway, the 8400 has a max voltage listing of 1.3625 and it shouldn't take anywhere near that. You picked a good cooler for it so should be fine, Ive run 8400 up around 4GHz. Just be sure and monitor temps
 
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Solution
H

HesusMD

Reputable
Dec 26, 2014
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4,510


Thanks for your reply. I guess I should start off with these settings and hope it's stable without increasing voltage: https://www.dropbox.com/s/i33ltx3z7exdfny/CAM00056.jpg?dl=0 ?

What would happen if i underclocked it? For instance, if I set FSB freq to minimum, 200? It would run at 1.8GHz then, and should I decrease some other value as well then or? I'd do it when I don't really need high perfomance, which is like 90% of the time, as it's my backup old pc.
 
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H

HesusMD

Reputable
Dec 26, 2014
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4,510
So, I got the cooler shipped, and I tried it. I've tried 3.6Ghz, and at 100% load the temps are about 70C with AC Freezer R2. It runs well. I wanna try 4 GHz. If I am understanding correctly, when I OC the CPU, I actually do it by increasing the frequency of FSB, which in turn overclocks some other components, as the RAM. So my RAM won't be running at 800MHz anymore (DDR2) but more? I have 4x2GB of Kingston RAM. It was like the cheapest one. Should I be worried that 445 Mhz FSB freq. is too much for those poor RAMs?
I don't think I would run 4Ghz for a extended period, but just to try it out.
 
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