Need a little bit of help, Qx9650 overclock on a x48 Rampage Formula Asus mobo

Temi_D said:
Not really sure about the nb volts, you can up them if you want to but definately dont touch the sb volts.

Reading around, it does indeed appear that you need to increase the cpu voltage to at least 1.4 to get 4GHz. As long as the temperature is below 70*c it should be safe

EDIT: the only place you really notice the difference between 3.6 and 4GHz is when encoding
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What about gaming performance?
 
Temi_D said:
yea thats safe, lower than i thought it would be. I think you can try for 4GHz but use less than 1.45v
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Are my northbridge and southbridge temps ok?

Becuase when I open my asus probe utitlity that monitors temps and voltage, it has alarms on the nb and sb, but it was also alarming me, before I started over clocking....

The case has good airflow... and it relatively cool...
 
Temi_D said:
No difference unless the game is cpu limited

Try for 4ghz with the cpu voltage at 1.43v
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Blue screens after getting in to windows and running burn test using all same settings multi at 10 and volys at 1.43

Im now trying 1.45v... no luck, pc restarts during test at 1.45v
 
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I didnt try 445x9.... I will try that tomorrow.

On a plus note, overclocking to 3.6ghz, I have seen a huge performance increase with my new 5870.

Playing crysis warhead, I used to get some quite visible frame drops, but now, its all pretty smooth with enthusiast settings, 2xaa at 1920x1200.

Was playing bfbc2, all settings maxed multiplayer... but was getting some lagging, couldnt determine if it was the gpu or network lag or something (even thought it might be the cpu being unstable), so I tried changing the aa settings, but with no luck.

I then fired up the single player wacked the settings back up to max, and it played smooth like butter.... so most probalby it was network lag, strange issue tho.

Would be nice to get cpu up to 4ghz, becuase I still get the impression, my new video card, is being held back by the cpu.
Can I really run the cpu at 1.4v 24/7, and its safe?
 
opethdisciple said:
No luck so far with these settings,

AI Overclock tuner: Manual
CPU ratio: 9
FSB Frequency: 445MHz
PCI-E : 100
FSB Strap: Auto
Dram Frequency: 890MHz
Dram Timing: Auto for now

CPU Voltage: 1.3v
GTL: Auto
CPU PLL: 1.54
FSB Termination: 1.2v
Dram Voltage: (assuming its the kingston one) 2.3v
North Bridge voltage: 1.26v

Im ytrying to get the intel burn test to pass at 3.6 with 1.3625 cpu voltage

Ib put the ram at 1066 with 2.3 volts
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why the heck are you increasing your fsb when you have a unlocked multiplier cpu?

why not stick to 333mhz fsb and just keep cranking up the cpu multiplier to see what you can get to.

my q9650 does 3.6ghz linpak stable on stock voltage of 1.2125v without load line calibration, i run 400x9 since i dont have an unlocked multiplier.

how hot is your cpu running? x48 mobo should be fine for 400mhz fsb operation.
im running 400fsb with 4 sticks of ddr3 ram on my p35t-dq6 which is an old motherboard compared to yours.
also going over 1.35v on these 45nm cpus i believe will result in core degradation.
 
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I think you need to start manually setting your GTL refs in the BIOS to achieve stability. This may allow you to reduce CPU & NB voltages and thereby temps. Also scale back your efforts to reach 4ghz and go for say 3.8. You can aim for 4ghz at a later date. Patience and kinowledge is key to overclocking.
 
opethdisciple said:
Are you saying its unrealistic for me to run the cpu at 4ghz on air, and expect to run it 24/7 safely... without causing damage?
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what im saying is dont try to run if you cant even walk.

get your 3.6ghz stable first before you try to go any further. seeing as how your not very clued up on this overclocking and general stability testing, i can see no end of issues occuring for you when you start running games and apps that tax the cpu more.
 
Cyber-Mav said:
what im saying is dont try to run if you cant even walk.

get your 3.6ghz stable first before you try to go any further. seeing as how your not very clued up on this overclocking and general stability testing, i can see no end of issues occuring for you when you start running games and apps that tax the cpu more.
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Ok, dude, I hear you and it makes sense.

I think Iv got 3.6Ghz in the bag.... it passes all the stability test and Im currently in the process of step by step, lowering the core voltage.

I played a good few hours of games yesterday at 3.6 and no problems, I run the intel burn test at extreme a few times, and it passed it ever time, so 3.6 is done I think.
 
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I just tried for 3.8 but no joy.

I think it was:

fsb:425
multi x9

core volt I went up to the max to see if it would work 1.3635v it boots in to windows, but during intel burn test, pc restarted!
 
generally LLC is considered to be bad due to the transient overshoot it can cause.
but if your motherboard sucks with heavy vdroop then you got no option but to enable it or go high on vcore.

and again why are you increasing the fsb when you have an unlocked multiplier cpu?

by going over the 400fsb your putting your ram out of spec so you dont know if the instabilities your getting are due to ram, northbridge or cpu.

if i were you id try 400x9.5 for 3.8ghz then i would work up to 400x10 for 4ghz.

if your needing 1.3v for 3.6ghz then your cpu is probably a dud overclocker.
my q9650 which is not unlocked Qx version, does 3.6ghz @ 1.2125v, ram runs at 1280mhz 6-6-6-18 1.80v all other voltages are set to Normal, i dont use AUTO settings for any other voltages.
this setup is intelburntest stable for 24 hours with 8gb ram.

q9650.png

above pics of my setup
 
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I tried 400x9.5 for 3.8ghz but at 1.3625 it failed intel burn tests...

Yes, I would rather keep at 400fbs.

However, I just seen that a 450 fsb x 8 is better than 400 x 9, only slightly.

So far, 3.6ghz is all that is stable for me.



Iv tried these so far all failed:

1.3625v for 410x9 for 3.7.. failed




400 fsb and x9.5 at 1.3625v for 3.8............ failed

346x11 at 1.3625v failed


363x11 for 4ghz at 1.3265v........... failed


9x422 for 3.8ghz at 1.3625v failed


I put the max volts on my ram, currently 2.3, as the last time I tried overcloking the ram, 2 years ago, I was getting random reboots.... all is ok with the ram now tho, but its a t 2.3v!
 
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How far above 1.3625v is it safe to push, for safe 24/7 usage using air cooling?

Or should that be the thresh hold, do what I can with 1.3625v?
 
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Absolute minimum my cpu is stable at 3.6 is with 1.325v

I seem to have cracked 3.7ghz....

Multi: 9
fsb: 410
dram: 1093mhz
cpu v: 1.33750v
drm v: 2.34v

Running intel burn test on extreme, temps looked like a mixed bag:

cpu never exceeds 35c
NB: 70c
SB: 50c

Do these look safe? I have no idea why my NB and SB are alwasy so high, they are high even with everything at stock.... so its not caused by the overclock.

The voltages on my N and S bridges are:

NB: 1.62v
SB: 1.07v
 
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