i a newbie after reading this thread, i tried to overclock my computer...but the multiplier is locked? what can i do to unlock it?

Intel not like AMD unless u with Engineering sample.
I believe u really a newbie, Intel multiplier always locked.

u can only raise the fsb if u want to OC.

ah sorry2 ...typo error...should be AMD X2

erm...plan to get intel 630 anyone ovrclock it?

i would to ask.. is there any1 out there try b4 OCing P4 willamette (1st ed P4). hows d result?

i did...lol ..pain in the rear back then , the board had no pci/agp lock

increase the fsb
the multiplier is locked

ok la that result... thats wat a willamette can will giv u..its hard to oc...after all d multiplier is lock. but i`ve seen that a willamitte P4 1.6 can OC to 2.9Ghz u can check it out at www.cpudatabase.com/index.cfm?Action=search

other guys can also check it out as reference

need to addsomething...

eeee.... correct me if i am wrong...

how about the cpu voltage or timing?

P4 2.8E s478 rev C0 (the 1st version of Prescott)

o/ced to 3.58GHz prime stable @ 1.55V
255mhz FSB
5:4 divider (my lousy KVR d43 ram can only do 248mhz max)

haven't got time to try higher FSB. air-cond billl to expensive (the thing darn hot on my xp-90)

hi..juz wanna ask and clarify sumthin here..im using 2.8c and manage to OC to 3.5ghz with 5:4 divider (250fsb)..manage to get 3.7+ before but not stable..btw im using 2x512 apacer ddr400 cl3 ram..

my questions:

1. I wanted to use 1:1 divider but i know it is impossible to do so wif my lousy apacer..izit possible for me to increase the vdimm and get higher fsb wif that 5:4 divider?

2. Wut is the highest vdimm that the apacer can stand? hehe so worried if i misraised the vdimm n burn my rams..

thanks to all sifu..

My system can oc?

Intel LGA775 Prescott 3.0ghz 531+
512mbram SD DDRAM PC3200
ASROCK 775i65GV
Seada 400 watt
Intel Stock Cooler
(idle temparature is 38-41 celcius:sometimes 44 but will drop later)
WesternDigital 80GB
1 casing fan(blow hot air out) + open casing (use table fan to blow the system)
...............

reez you can up Vdimm up to 2.9 V at least to be on the safe side.

dun overclock unless u want to cook your mobo

hmmm..u mean 2.9v is a safe limit for any type of memory?

sort off. But bro no gurantees

even wif 5:4 divider still cant go pass 260fsb even increased the vdimm..seems like my apacer is the bottleneck..

anyone on DDR2 here? can i use divider 1:1 so my proc FSB 266...till now i cant boot when i use divider 1:1

what is the best oc mobo for LGA775??