Hi, I recently have bought a computer with 3.0GHz P4 800 MHz FSB. Some more details on specs, haven't put everything here: ASUS P4C800-E deluxe motherboard 4x 512 OCZ Platinum PC3200 DDR400 RAM ATI Fire X1 G1 256 MB video card 2 x 36GB Western Digital 10,000RPM drives, 2+0 RAID stripe 160GB IDE HDD for backups Antec 550 W Power supply I don't have the greatest knowledge of hardware, but I use lots of CAD software. The ASUS P4C800-E motherboard and the BIOS has 'AI Overclocking' where it has a menu to automatically overclock for you. Anyway I tried 10% and everything is fine, and 20% also .. i ran some games and some CAD software to render large files and all is well. but my processor is running at 3.6GHz!! is this safe? ... i also downloaded the program MBM5 and my CPU temp has not gone higher that 51 C, its usually around 35 C when idling in windows.

As long as the temp doesn't go over 60-65c it's totally safe. Only thing is it might crash on you and BSOD, because of instability. If it does it means you need to increase the vcore, which makes it more stable. But the vcore also makes heat so watch the temps if you need to increase it. You should try using the BIOS for overclocking instead. It's more reliable and you can get an idea of whats really going on more.

If you want you can overclock your video card too, with powerstrip. Just don't go too far with everything and you won't damage it! http://66.227.107.157/ps.htm

What are you using for cooling! 3.6?

Lotta people get 3.6g with the stock cooler

Ok, johnoh I'll take your word for it. But how high can one go with the stock cooling setup? J^

Wow, 3Ghz CPU, 2GB RAM, 72GB Raid 10000RPM HD, and 256MB ATI card, I'd wish I have one of those. 51C max is your max temperature? Seems to me you still have more room to squeeze. There is not point to overclock when your max temp is at 65C+, cause the P4 will clock down itself so it doesn't overheat. You should try 250Mhz FSB x 4 = 1000Mhz FSB, that will give you 3.75Ghz. Boost up the vcore and dimm voltage if necessary.