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Overclocking a X4 640 Propus

post #1 of 31
Thread Starter 
What's up OCN!

I've got a X4 640 Propus and the Asrock 870 extreme 3.

I was just wondering if anyone else has this combo and what FSB and vcore your using. I'm doing 250 FSB and 1.4 vcore for a overclock of 3.75Ghz, but it's not yet stable.

Any suggestions?
post #2 of 31
We need to know this.
HT speed
cpu/nb speed and voltage
speed on memory stock and oc
Temp on the cpu and core.
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post #3 of 31
Thread Starter 
Sorry for abandoning my own post. But anyway here are my settings so far.

HT speed= 2000Mhz
cpu/nb speed and voltage= (CPU 3.75Ghz, 1.4V), (NB 2000Mhz, 1.25V)
speed on memory stock and oc=1333Mhz Stock no OC
Temp on the cpu and core.=46c total (between 45-48 on each core)
these temps are idle temps, after the machine was on all day
post #4 of 31
Is that 46c under load?
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post #5 of 31
Thread Starter 
idle
post #6 of 31
Quote:
Originally Posted by APOLLOSTEES;13471805 
idle

Idle temps mean nothing!!! We need some load temps!!! biggrin.gif
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post #7 of 31
Idle temps mean nothing. You need to know LOAD temps with Prime95. Keep it under 55*C load, and under 1.55v vcore.

You'll be LUCKY to get 3.75 stable. You might want to drop your multi down another 0.5 or so. 250 x 14.5 puts you at 3.63GHz which you MIGHT be able to get. Or 250 x 14 gives you 3.5GHz which you should be able to do.

Bring your NB speed up to 10x. Apply CPU-NB voltage as needed (up to 1.45v).

Otherwise you're off to a decent enough start. Like I said, you'll be hard pressed to get 3.75 stable with a 640.
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post #8 of 31
Thread Starter 
Quote:
Originally Posted by pioneerisloud;13471846 
Idle temps mean nothing. You need to know LOAD temps with Prime95. Keep it under 55*C load, and under 1.55v vcore.

You'll be LUCKY to get 3.75 stable. You might want to drop your multi down another 0.5 or so. 250 x 14.5 puts you at 3.63GHz which you MIGHT be able to get. Or 250 x 14 gives you 3.5GHz which you should be able to do.

Bring your NB speed up to 10x. Apply CPU-NB voltage as needed (up to 1.45v).

Otherwise you're off to a decent enough start. Like I said, you'll be hard pressed to get 3.75 stable with a 640.

Yeah prime 95 failed after 5 minutes.

Anyway I'm applying these steps. Will report back.
post #9 of 31
Thread Starter 
OK.

FSB=250
MULTI=14.5
OC=3.625


CPU VOLT=1.425
NB VOLT=1.3

NB SPEED X10=2500Mhz

Load temps=67-70c??? I don't like these temps
post #10 of 31
Quote:
Originally Posted by APOLLOSTEES;13472073 
OK.

FSB=250
MULTI=14.5
OC=3.625


CPU VOLT=1.425
NB VOLT=1.3

NB SPEED X10=2500Mhz

Load temps=67-70c??? I don't like these temps

BACK OFF NOW!!!! The max temp I would feel safe with would be under 55c

Edit: Max temp for that processor is 71c so anything under 60c I would feel safe with...
Edited by nbmjhk6 - 5/11/11 at 7:22pm
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I is bad@naming
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Up and running!!
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CPUMotherboardGraphicsGraphics
Intel 4930k Asus Rampage IV Black edition Powercolor 7870 PCS+ Sapphire 7950 
RAMHard DriveHard DriveHard Drive
16gb 2133mhz G.Skill Sniper  Kingston SSD Western Digital R4 Seagate Barracuda 
CoolingCoolingCoolingOS
EK Supremacy acetyl/Nickel XSPC EX240 Phobya DC-12 400 Windows 7 
MonitorKeyboardPowerCase
Asus 23.5" Corsair K70 Antec True Power Quattro 850w Coolermaster Storm Trooper 
MouseMouse PadAudioAudio
Logitech G400 Steelseries QCK Schiit Magni Schiit Modi 
Audio
Hifiman HE-400 
CPUMotherboardGraphicsRAM
Intel Core i7 2600K Asrock Extreme 6 Z77 PowerColor 7870 PCS+ MYST Corsair Vengeance 
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Corsair Vengeance 30gb Kingston SSD 500gb seagate Western Digital R4 
Hard DriveOptical DriveCoolingCooling
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CoolingOSOSOS
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