Overclocking E8400

Cire353

Cire353

New Member
I've had my system built for about 2 months now, and its running really well. But I would like to overclock now. I know how to get into the BIOS and everything, but I'm have some questions about settings. I've heard 4GHz is doable with a E8400 could I get that high with my system? I'm not sure what I need to set my voltage and such to either, And can I just overclock my CPU or do i have to do the motherboard and RAM with it? My specs are in my sig. And my system idles at about 15-20C and 25-30C after about 2 hours of gaming.
 
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your surest bet, and the first thing you should try, it setting your FSB to 400 and the multiplier to 9. that will bump your speed to 3.6ghz, and you won't need a voltage bump to get that speed. to get higher, really depends on your processor.
 
when you go beyond this speed, you will have to adjust your processor's voltage, and then you will have to start controlling the ram speed, voltage, and timings.
 
oc'ing the E8400 is soooooo easy. lovely? is absolutely right. You could make 4 ghz easy with just a small change to your cpu voltage and ram speed. With the aftermarket cpu cooler you have, that cpu will run pretty cool as well!
 
zombine210 said:
i thought the multiplier was locked.
i can't change it in my mobo :(
are we talking about the same cpu? E8400
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you cant make it higher, you CAN make it lower. for instance, my old e4500 had a multiplier of 11x. i wanted to get 3ghz even, so i changed the multiplier to 10x and made my fsb 300.
 
You can do better than 3.6 on stock voltage, I've got my E8400 at 3.85 stock voltage on a cheap Gigabyte motherboard. It's an awesome processor :D
 
Cire353 said:
Wait the FSB is 1333, do you mean increase it by 400?
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no. some motherboards show the fsb's final speed, and some show the speed that will be multiplied to get the processor speed. ill put it in a different way lol

if your fsb is set at 333mhz and your processor is set at X9, you will get a core clock of 3000mhz about.

if your fsb comes stock at 333mhz (like yours does) then you multiply that number by 4 to get 1333mhz, which is your final fsb speed.


so both together, with an fsb of 333 and a multiplier of 9, you get a core clock of 3ghz and an fsb of 1333mhz.



those are your stock settings, that your computer booted up with initially. now, if you change your fsb to 1600mhz (or 400mhz depending on how your motherboard shows it. if your mobo shows 1333 then change to 1600. if it shows 333 then change it to 400.)
 
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Langers2k7 said:
You can do better than 3.6 on stock voltage, I've got my E8400 at 3.85 stock voltage on a cheap Gigabyte motherboard. It's an awesome processor :D
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not the safest bet. most e8400's will do about 3.6ghz stock, completely utterly stable (could run orthos for days) yours is probably a bit lucky, and even if you havent noticed, a bit unstable too.
 
lovely? said:
not the safest bet. most e8400's will do about 3.6ghz stock, completely utterly stable (could run orthos for days) yours is probably a bit lucky, and even if you havent noticed, a bit unstable too.
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You'd think it was unstable, but I've had an instance of Orthos running on it for about 8hrs, and there were no errors or lockups whatsoever.
 
Langers2k7 said:
You'd think it was unstable, but I've had an instance of Orthos running on it for about 8hrs, and there were no errors or lockups whatsoever.
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then your lucky lol. i can get to 3.65ghz stable, but to keep an even ratio i bump it down to 3.6ghz
 
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