lol ya ...owh ok bro!...will run the test by tonite ...btw how many loops do i have to run on IBT eh..i've read in others forum about stressing using IBT some said 10-30 loops enough oredi

and some run it to 50 loops but people there said it can kill or over stressed the proc izit?... dunno which to follow..but for me i just run 20loops...

btw here screenshot i take just now with memtest & asus pc probe...



This post has been edited by kilowatt: Aug 27 2009, 01:49 AM

it probably will kill your proc if you run it continuously for 24 hours or more for example....
but for *1 hour or.... *20~50 loops is acceptable range.... it's not dangerous...
based on the LinX readme.. "To consider a CPU fully stable you should set this(times to run) to at least 50-100"
*Note: time to finish each loop totally depending on your GFlops and problem size

Overclocking update (3rd attempt to stabilise 471FSB @ 4GHz)



CPU Vcore - 1.325V
CPU VTT - 1.3V
CPU PLL - 1.52V
Vnb - 1.26V
Vmem - 2.36V
Vsata - 1.5V
Vsb- 1.1V
Else on Auto...
LLC Enabled...

Comments:
To gain stability at 4GHz, Vmem is increased from 2.24V to 2.36V...
Prime95 stable 2 hours mid FFT (768K) test
Prime95 stable 1.5 hour large FFT (1024K) test
* Failed Prime95 large FFT (4096K) test after 2 hours 5 minutes.. will try to stabilise it later....
Note: Running DDR2@ Vmem above 2.2V(or beyond recommended voltage) is risky.... it could kill your RAM sticks....

This post has been edited by campsol2k: Aug 27 2009, 01:09 PM

waaaa nice OC bro nice vcore too ....btw this the Prime95 Custom i run last night...passed for 3 hours...waited until slept over ....

Nice OC.. Now u can enjoy fast n stable computer.... also u need watch out your temps esp the CPU...
btw... i suspect my RAM got problem... supposely it doesn't need vmem that high to stabilise it @ 566MHzX2...
will update u guys later...

UPDATE:
As i suspected.. one of my RAM sticks failed....
and i believe it failed not because of i ramped it at 2.3V... because i never ran it beyond 2.3V before and just ran/stressed it for few hours recently...
I suspected it when i started to ramp the vmem at 2.14V and stressed it 4 couple of hours (3~4 hours) during my 1st overclocking attempt at 4GHz.
I reverted back to stock before attempting 2nd overclocking. In between 1st OC attempt n 2nd OC attempt... i encountered minor crashes for 2~3 times or maybe more(specifically windows internet explorer or explorer)..oh ok... i thought it might be some kind of application glitches because at that time i was installing ACDSee .. and think the application could be the problem.... Now it is proven that the RAM failed because of mild overvolting from recommended voltage.... fyi, recommended voltage for my RAM sticks is 2.1V @ 4-4-4-12@800MHz...

This post has been edited by campsol2k: Aug 27 2009, 09:04 PM

yeah!~ ....thx bro...yup will always keep the cpu temp...

but ouch ...ram failed ka...nevamind i believe u can get new stick ram & get back to OC!...

yeah!...btw ya i just put my ram voltage max on 2.2...will not go more than that...

Fortunately, some broken RAM sticks could be revived..

For ppl who interested.. they can view here.... http://www.xtremesystems.org/forums/showth...t=205009&page=6

I'm trying to revive the RAM stick using freezing technique... already in the freezer n waiting for miracle... hopefully it will work for my RAM...

@kilowatt
Put a decent cooling fan for your RAM if u want to run at 2.2V 24/7....

This post has been edited by campsol2k: Aug 28 2009, 01:33 AM

hehehe wokey brO!...btw im using dominator trifan cooler ...hows ur ram working oredi?

-----------------------------------

update:

i have lowered my vcore down to 1.35v & it remain the same & superb stable!!

This post has been edited by kilowatt: Aug 28 2009, 11:05 PM

I'm waiting for 24~30 hours ... then will test the ram out.. will update later....

For your final stability test... if u have time...
boot your windows into diagnostic mode... run > type msconfig > under general tab > select diagnostic mode > reboot...
test another run prime95 custom FFT 4096K for 1~2 hours or more if u want to (the longer the better...)... same settings as b4 but set the memory to use = 4096MB to max out memory used by prime95...
u don't need to run prime95 small FFT if u already passed IBT...

u can try to lower down your vmem another few notches... better.. and of course need to run another stability(Prime95 large FFT{4096K}) test for each change....
Include an IBT/LinX in your next screenies showing that your CPU is stable @4GHz....

This post has been edited by campsol2k: Aug 29 2009, 01:34 AM

Hye guys...
I want oc my Q9400, however I dont know how to oc it...
so i need guide and info to oc my computer...

here is my rig spec:

Q9400
Asus P5QL-PRO
4 gigs Corsair XMS 2 8500CS

Anyone here using DFI P35 Blood iron . . ?

My Q9450 cant get above 440 FSB .

Vcore - 1.55
VTT - 1.36
VPLL - 1.55
Vsb - 1.95
Vnb - 1.46
Vclockgen( Wth is this ? ) - 3.55 default.

All GTL at 0.67x

I get tips from other forum to up my VTT and VNB if i want to get higher clock . But why my board got Vclockgen and Vsb ? What value is optimum ?

Hint: Try different lower fsb/ram ratio.. ie 5:6 , 3:4 , etc... try again...
Vcore - 1.55.. your vcore is too much... 45nm quad @ 3.5GHz doesn't need that much...
VTT - 1.36
VPLL - 1.55
Vsb - 1.95... u don't need that much... up one notch is enough...
Vnb - 1.46... too much vnb...
don't forget to increase your vdimm/vmem when u change the fsb/ram ratio...


This post has been edited by campsol2k: Aug 31 2009, 05:45 AM

probably its at its limits.. Q9400/Q9450 dont oc pretty well and have an fsb wall around 450..
Vcore is pretty high.. SB is way too high.. u are gonna kill ur mobo with it.. i'd set the SB to default..
best gamble is for u to change to a better mobo =/.. P45 maybe

yup wut campsol2k and reiben05 said is true...hmm i dont know about Q9400 can go for 400++ fsb or not but Q9450 definitely can go higher...ur SB & NB voltage dont need that much..my last Q9450 C1 can OC'ed to 465*8@3.72ghz stable 24/7 & my NB is 1.3v....

im using asus p45 mobo..maybe u should go for p45 mobo & try for higer FSB...P45-UD3P look nice lol...or why dont u try 1st googling about Q9450 oc with ur mobo ...

This post has been edited by kilowatt: Sep 3 2009, 12:37 AM

vcore is too high.

I think it's a P35 limitation. Most P35 boards have a FSB wall of 450 for quads.

Agreed w/ bro yimingwuzere.

-pWs-

Hi guys, I am running Q9550, E0. Just got this last week. I was wondering, I have set Vcore 1.2V and pumped up to 3.3Ghz. Is 1.2V consider as stock voltage and mere 3.3Ghz is safe to be used?

as the proc stable running..it good to go 24/7...

try Prime95, OCCT or others to test the stability

can anyone can give recommed setting for my spec which same proc with Kriss
proc Q9450 2.66
ram team extream dark 1066 2X2GB
motherboard ASUS P5QC (p45)
cuz i still nood in overclocking

anyone with asus board.. specifically the pq5 deluxe..
care to share the bios settings to oc..
tq

anyone have exp wif asus p5k se /epu

got problem to OC my q9550 eo
stock voltage 1.12-1.16v.. not sure..

the problem is this mobo cant oc my q9550 past 380 fsb..( so ive got less than 3.3Ghz)

voltage drop too much idle 1.36v but once load OCCT its drop to 1.24-1.26v

any option to counter this drop

---

Added on October 21, 2009, 11:42 amset in bios around 1.357v

---

Added on October 21, 2009, 11:43 amall voltage and timing leave to auto..
just set the voltage manually.


This post has been edited by salimbest83: Oct 21 2009, 11:43 AM