can u check what bios is currently on ur mobo.

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Added on October 16, 2008, 11:43 pmand which p5q coz there is like dozens of them.

thanx bro..why is it so hard to oc with p5n32-e sli plus?

hi Kuntau!

Fyi, I'm using cpu-z 1.47 with the same cpu like u and a dfi mobo. It shows the correct 8.5 multiplier. If EIST is on, it will show the 6 multiplier on my cpu-z during idle. Cheers!

????

P5Q only.. no PRO no SE no PREMIUM etc..

http://www.asus.com/products.aspx?modelmen...=11&l3=709&l4=0

try flash the bios to the latest one.

During my overclocking day years ago, floppy is they only way to flash bios but from Asus website also give instruction to use floppy disk (which I dont have)..

Any other method? Can use USB drive?

wow that is old skool bro.
now u can flash bios thru windows bah.............

yes u can use usb drive but u will need the "hp tools" software to put the file into ur usb.... but seriously i have never done it.... just some info that i can share.....

if u wana flash from windows, make sure all ur application is off.... or just load diagnostic startup....

flash at ur own risk

Depending on your motherboard manufacturer, my Gigabyte can just go into the flashing utility from the BIOS and it will detect my usb right away. All I need to do is extract the files to the usb drive.

i flashed an asus P5K like 2 nites ago using usb
it was easy....there's a utility called "EZ FLASH 2"
it does the job for u in bios.....jes need to select which file it is

if i want to overclock my E6420,
just go to bios n only setting te FSb or other things?
what stuff must be good to oc?
psu?mobo? else?

Select from where? Floppy or USB drive?

ok back to business. Now I think cpu-z is buggy because CoreTemp give me the correct value. See screenshot below


[attachmentid=633819]

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Added on October 17, 2008, 10:30 pm

No offense, but you I think should read the fundamental first

Hi guys and gals,

Trying to OC my Q9450, so far managed a stable 3GHz (350*8) sync with ram (Corsair XMS2 800Mhz)
Voltages:
Vcore 1.15
FSB 1.10
Vdimm 1.9, 4-4-4-12

Tried out on IBT 15 loops.
Screenshot as below:


What u guys think? Any rooms for improvements?

Thanks.

keep going...still got rooms for improvemnt....push higher clock n see how far ur stock vcore can take u

go for 400fsb!

Yeah I'm going for that. Just checking whether I'm on the right track.

Are my temps ok so far? Idle 45 C, Max on IBT 62 C

as for me anything < 80C is acceptable

Its working at stock voltage! Try higher!

Ok i tried 3.2Ghz (400*8) on my Q9450
Voltage settings I got from another OCer in another forum having same proc and mobo as me.

Vcore 1.25
VFSB 1.20
Vdimm 2.1 4-4-4-12
VNB 1.4

Passed IBT 15 loops,

Realtemp shows idle at 45C while max temp during stress is 67C.

Trying to keep the temps lower than 70C, 65 would be just nice, as I read this is the recommendation for 45nm chips.

Gonna try to lower the voltages more.


Comments and advices are welcomed.

What motherboard are you using? I don't think you need 1.4vmch to run 400FSB. 1.3 or less will be sufficient...

@Kuntau

usb mate

Bro!

What is the vid shown on ur coretemp when ur running ur Q9550 at stock speed(2.83G). I can see that your vid is 1.25V at 3.4G.

I think under 1.2v but not sure.. later when reboot time I'll confirm this again, with so much thing on start-up very lazy to reboot LOL

Urs is EO stepping right? Take your time bro! Coz from the stock vid we can expect the overclockabillity of the chip. My vid is 1.1V for stock speed. Cheers!

Using evga 750i FTW mobo. I tried Vnb 1.35, getting BSOD during IBT. 1.4 no BSOD, can pass 15 loops.
Managed to reduced vcore to 1.2375v. Gonna try to go lower.

Yeah E0.. but right now still stuck with stock cooling.. any recommended aftermarket cooling for this chip?

I'm using the xigmatek red scorpion with the crossbow. Quite pleased with it. Anyway, what is your vid at stock speed?

1.1v

Erm.. THERMALRIGHT IFX-14 you think can fit in CM690 casing or not?

just done this...
note that the vcore is 1.525v , i put that high because wanna make it stable... actually 1.475vcore is enough
2.5vdimm to make DDR2 1100 CL4-4-4-4 , PL 9 , trfc 30
vmch +0.1 from default.

I think I couldn't go more after 4.5ghz

[attachmentid=636318]

Guys, I have a bit of a problem here with OC...
I OCed my rig(as in the sig) to 4Ghz = 500x8 @ 1.375v vcore...on 1:1 though...I've already passed OCCT and Orthos for cpu stressing (8 hours) but when I'm surfing the net with mozilla firefox, it sometimes give out an error...and my utorrent also got error this morning which it never does...

The question is do I need to increase my cpu vtt voltage to make it stable?

What kind of error? you didnt state clearly

The program (Mozilla firefox and uTorrent) juz gave out error messages and need to close...

i had the same error jes now
but mine passed the IBT test
still havent properly tweaked it yet
do let us know how urs turn up k izwan898

Still the same...lowered the vcore a bit since it passed orthos n occt...but however the error still occurs...aiya so pening!!

nais! didnt know the ram cud do 1100 cl4 with just 2.5 vdimm

regret selling u liao


erm...try OCCT 8 hours.... if u can pass that then it shud not be a problem gua.... occt can test stability better than orthos imho....

if not just run prime95 for more than 12hours....


erm....actually kinda not really trusting ibt tho.... cos got ppl can pass 40 loops or 60 loops but then after tat they get random freeze

Add more vmch and vcore,gtl ref might helo

yea...i dun tink IBT is "that" trustworthy
i did get random freeze too
will be running orthos soon
now trying to play 500fsb
but still learning my ways around the voltage option

btw...if my bios cant set the Vcore...then where should i set it ??

if your bios cant set it, get another board that can

anyway, what model? and brand?

asrock p4i65G....m this board nice for overclock?? = =

ermm..can u choose more reliable brand like dfi,asus, or biostar?
btw the avatar like hypermax dragon case

zzz...i just chg tis mobo only ler~~

btw...any software can chg the vcore??

that is the reason the highend mobo so expensive and yours cheap

You got what you paid

anyway...it just p4 ...bt tis mobo also cost around RM180...it can chg fSB as well..bt just cant chg vcore...tis was worst~

u can try vmod the mobo.. google for info.
but imo asrock mobo will adjust the voltage automatically. maybe u'll have option something like normal,high,turbo.. whatever.
for stock cooler 3.2Ghz is already limit i think.
i used to have northwod 2.4 can clock up to 3.4Ghz but after 1 month my electrical increase by 50% then i change to AMD. i still kept my northwood 2,8 but rarely boot it. I think prescott can go much higher if u have better cooling and psu. but rather than invest to a good psu and cooling better u just re-built ur pc for cheap core duo now. higher performance and cool running.


p/s asrock still consider better than asus vm mobo. its really suck

if bios cant set vcore, ur last resort= BSEL mod.

hmm...if wanna buy new computer ...i will straight go for quad aredi le bt i just wanna play tis apek p4 ma ...haha

btw...i tried set to 3.0GHz...bt it cannot reboot...then im only lower down to 2.8 ...so far it still unstabil since used OCCT n prime95 to test it ...it still hav error
if hav error ,izit consider as not stable?

If got error, it's not stable dude...

i tried many time aredi with diff FSB setting with is all almost get error~
btw ...if unstable ...wat it affect to my comp if i just normal used
or the spd will slower then my normal setting ?