overclocking question

[Drak55]

if you read some of my other post about the xp220 I got well I found out it dont work so I have to send it back I tryed it on my friends pc and it didnt work but he just got an xp2200 and I installed it for him it worked fine. he gave me his old xp1600 till I send my xp2200 for RTV my MOBO is an asus A7V266-E I tryed to overclock it in the setup prompt there are like 4 things I have to change to over clock it and I dont know what to set them at can anyone give me a hand here.


Thanks
Drak

[Illah]

Which four things?

--Illah

[Drak55]

CPU:system frequency multipler
system/pci frequency (mhz)
system/sdram frequency ratio
cpu vcore


those are the 4 things that my bios have to overclock I can do it with the jumpers but thats a crazy for me I rather do it in the bios

[Illah]

CPU:system frequency multipler: If you unlock you can change the multiplier, if not, you can't. Basically chips use the multiplier + FSB to determine their speed. 11.5x133=1533 (XP-1800), 12x133=1600 (XP-1900), etc...

system/pci frequency (mhz): This is the front side bus speed. Higher is better.

system/sdram frequency ratio: This is probably the divisor for the memory. On a 333 board you may have the 5/4 divisor to make the mem run at 166/333 while the FSB is at 133/266. Since yours is a 266 board I'm not exactly sure why this is here, unless it has a 4/5 option. Then you could up the FSB like crazy and lower the mem speed to keep it in spec.

cpu vcore: This is the chips core voltage. Upping this can help to stabalize an overclock, but also raises temps. It's best to stay below a 10% increase in this, i.e. don't go over 1.925 V unless you got some crazy cooling.

The basic way to overclock is with the FSB and Vcore settings only. Up the FSB little by little till it won't boot into windows, then up the vcore a bit, then up the FSB, then vcore, etc... Keep an eye on the temps the whole time, once you start to get high you might not want to touch the vcore anymore. Once you get to a point where you can't go any higher, run Prime95 to see if it's stable. If not, either up the vcore a bit or lower the FSB a bit.

The way most of us do it is to unlock the chip, then lower the multiplier and go for crazy high FSB speeds, that's where the mem divisor might come in.

--Illah

[Drak55]

wooohooo thats alot of info now how do I unlock the chip and is it hard to do for a somewhat newb
P.S. where do I get prime95

[Illah]

Just search for 'prime 95' on google, it'll be the first thing that pops up.

As for unlocking it's not that hard. Getting the right stuff it tough though, it might be easier to go with www.highspeedpc.com, they got an unlocking kit. It's more expensive than getting everything seperately but it's alot simpler.

--Illah