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Phenom II X4 Overclocking

post #1 of 10
Thread Starter 
Hello. I've soaked in a lot of "information" from this site, and I thought it only fair to give something back. I'm not claiming to be an expert, but this is my fourth Phenom II, so I'd like to think I have decent experience overclocking. Basically, I'm just going to report on my results so that others can see what the Phenom is capable of.
My most recent Phenom II is an X4 980, with a stock speed of 3700MHz. I hope to shed some light on voltages for other overclockers. This Phenom came with a stock voltage of 1.475V! That seems extremely high as I always considered anything above 1.4V "risky". Apparently AMD doesn't, because that's the stock voltage. This is about the max this cooler can handle. Temps go above 55C and the fan gets loud during gaming. I bought an Antec Kuhler and overclocked further.

99% Stable:
3.7 @ 1.475(stock)
3.8 @ 1.475
3.9 @ 1.475
4.0 @ 1.475
4.1 @ 1.475
4.2 @ 1.500
4.3 @ 1.650

Basically, it was pretty stable until around 4.2. Even 4.2 at stock voltage was decently stable. It wasn't until 4.3 that overclocking just didn't seem worth it. Temps were fine, but I wouldn't be surprised if the chip died suddenly. 4.4 was just not possible under normal voltages.

I'm just trying to contribute something. The point I'm trying to make is that 1.475V appears to be perfectly safe for Phenom II's.
post #2 of 10
derp..their spec says 1.55 :kookoo.gif: furhtermore..i ran a 965 @ 4018 for 9 mos with 1.58v
 
Thuban Powah!
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Thuban Powah!
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cheap! Newegg box panel ibeats with onboard. 
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post #3 of 10
Lol sure u need 1.58? I do 4.3 at 1.5
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post #4 of 10
All chips vary a bit, but it is a useful guide.

I'm running a 955 C3 @ 3.82 @1.385v (DFI 790FX) stock Volts vary from CPU to CPU.
Aces and Eights
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Aces and Eights
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post #5 of 10
Every chip is different, some of them can do 4GHz with stock voltages, some can't.
    
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post #6 of 10
phenoms overclock best at low voltages, and low voltages come with low temps.
post #7 of 10
wow, looks like getting a 980 doesn't guarantee getting a good chip. 1.475 to do 3.7? That's pretty horrible... My 24/7 is 4.2 @ 1.45625V
post #8 of 10
Phenom II 955 and 980 are exactly the same chip. Both of them had their unlocked multiplier.Both of them can overclock to the same level. Both of them had 62'C of max temp. The only difference is their stock voltages and stock clock speeds. 955's stock is 1.375v and 980's is 1.475v.
    
CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
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Hard DriveOptical DriveCoolingOS
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post #9 of 10
Quote:
Originally Posted by yuksel911 View Post

Phenom II 955 and 980 are exactly the same chip. Both of them had their unlocked multiplier.Both of them can overclock to the same level. Both of them had 62'C of max temp. The only difference is their stock voltages and stock clock speeds. 955's stock is 1.375v and 980's is 1.475v.

I'm referring to the binning process. I'm quite well aware that they come from the same wafers thumb.gif
post #10 of 10
Quote:
Originally Posted by Nnimrod View Post

I'm referring to the binning process. I'm quite well aware that they come from the same wafers thumb.gif

With stock speeds increasement, AMD increases their prices too. Huge dissapointment. They are designed for peoples who doesn't knows how to overclock.
    
CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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