Hi i want to overclock a Celeron 733 MHZ and i want to know how far did you go with it? (maximum OC speed) And at when i should decrease the computer speed at what temperature? Currently it is about 34-36 C.

Thanks in advance.

What motherboard do you have? This question is really important to how much you can overclock. Please include the brand of the motherboard and the chipset. It would be better if you give your memory specfication as well. That way I can tell you how much you can overclock.

Yes, all you overclockers who read this need to tell us what you're working on.

Your temps are fine now and you don't need to be concerned with them until they go way up.

I have a Chaintech Motherboard 6ViaJIA that supports up to 1.1 GHZ and 133 FSB.
Yesterday i overclocked my compouter to 825MHZ but when i turn on the computer it doesnt boot however when u turn off the power and wait 2 min and turn on it again it boots normally!!! I am running currently my cpu @ 748 mhz and 31C temp.

I have an intel heatsink with 80 mm fan running at 5600 rpm.

Orginial Clock speed = 66x11 = 733

Here is how you want to overclock. First you want to do a 5-10Mhz increasment on Front Side Bus, and remember not to rush. Thus...

70x11=770Mhz If it's stable, keep going

75x11=825Mhz At this point, if it's not stable, increase the CPU voltage by +0.1v. Then try if the problem still exist.

83x11=913Mhz This setting might be hard due to the fact high AGP clock speed, high PCI speed. Your video card and your hard drive won't like this setting.

100x11=1100Mhz This is your goal here, overclocking it by 50%. But it takes quite sometime before you can reach this point. If you have PC66 SDRAM, I suggest you turn your RAM CL Latency from 2 to 3 ensure stablility.

TMP Man

Okey i have a 2 fans on agp and pci cards but how do i increase the voltage?

You can either do it in the BIOS by hitting the delelet key or use the jumper on the motherboard. You can look it here for jumpers on the motherboard.

http://www.chaintechusa.com/tw/eng/product_list.asp?MPSNo=13&SPSNo=13

I'm not sure which one is yours, so give me your motherboard model.

http://www.chaintechusa.com/tw/eng/product_spec.asp?MPSNo=13&PISNo=97
And in the bios in frequency voltage control i have only
Spectrum speed
Cpu Host/Pci host control
66/33
68/34
75/37
80/40
85/41
90/30
95/31

So there is no voltage tweaking in the BIOS? Did you find any jumper saids something like 1.6v/1.7v/1.8v... etc. I try to download your motherboard's manual, but I can't download it, cause of the tiwan website is down. Well, the best thing for you to do is to check your manual for jumpers. There should be a layout of your motherboard in the manual saying this jumper does this, that jumper does that. If you have a jumper free motherboard and there is no voltage tweaking in the BIOS, try to upgrade ur BIOS into the lastest version and see if that helps. There is always another way to do it, that is to modify the pin on the socket 370 celeron processor. I don't recommand doing that cause I already burned out 2 processor by modifying the pin. =..( Thats $100 worth there. If you want to gamble, I can tell you how to modify the pin to bump up your voltage. Don't modify the pin unless you have another processor to spare. If you messed up, your processor will burned out and vanish into the thin air.

Thanks for help TMP man but i think i just leae this idea with overclocking since my motherboard doesnot have the voltage jumpers but it has the ETERNAL CLOCK FREQUENCY, CPU FREQUENCY RATIO and nothing more importnat.

Thanks for help!!!!