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stock core voltage HIGH Phenom II 560 BE

post #1 of 20
Thread Starter 
Hello, this is my first build in many years. Here are the specs below.

MSI 785GTM-E45
Phenom II 560 BE
Antec TP3-550 power supply
EVGA GT-240
4GB Supertalent DDR2 800
WIN 7 64bit
Old Antec Server Case 1080amg(it's a beast and weighs about 40lbs)with 2 exhaust and 2 intake fans)

I was able to unlock the 2 extra cores easily with the bios. I'm using the stock cooler, so no overclocking yet. It's running stable and the cpu temp averages about 30c idle and never above 40c, even after gaming (been playing Mafia2).

From viewing similar setups, it looks like the stock core voltage of 1.43 volts is extremely high. Also the HT link speed dropped to 1600mhz after unlocking the cores? I have sinced lowered the voltage in bios to 1392v in bios (CPUz reads about 1.37 volts??) and increasted the HT back to 2000mhz. So far no problems and the cpu temps actually went down a few degrees. My concerns are:

Are these changes safe to do?
Is the motherboard or CPU defective with the default voltage readings?

I fooled around and actually overclocked it up to 3800mhz and it booted safely. I ran it for a few hours and it functioned fine. I will get a new cpu cooler before making any permanent changes. Hopefully it's the board (it was a free promo deal with cpu purchase). I would like to get one that supports DDR3 memory.
Check the screenshots. Any help is appreciated.
STOCK

UNLOCKED

CURRENT with changes

Edited by xtce650 - 2/21/11 at 1:16am
LuckyPhenom
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LuckyPhenom
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post #2 of 20
Under 1.55v and 62C.
1.425v is nothing
Waiting on X399
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Waiting on X399
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post #3 of 20
As above, it might have autio adjusted them, as a suggestion, try dropping the voltage down a few steps and re test with something like prime, just because it has auto adjusted it to that, doesnt mean it needs that much
    
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post #4 of 20
Keep the cores locked! You definitely don't want to push a 125W on a weak 3+1 power phase ESPECIALLY on an MSI motherboard! It's basically asking for your PC to explode!
Increasing voltage will only make it worse.

I'm not sure but I think the AUX temperature sensor is the MOSFETs (at idle). They are definitely way too hot at idle, at load they would probably blow easily. I am serious, you must get those cores locked now. No other area in the system that could get as hot... it makes sense.
Edited by xd_1771 - 2/21/11 at 8:05am
post #5 of 20
Quote:
Originally Posted by xd_1771 View Post
Keep the cores locked! You definitely don't want to push a 125W on a weak 3+1 power phase ESPECIALLY on an MSI motherboard! It's basically asking for your PC to explode!
Increasing voltage will only make it worse.

I'm not sure but I think the AUX temperature sensor is the MOSFETs (at idle). They are definitely way too hot at idle, at load they would probably blow easily. I am serious, you must get those cores locked now. No other area in the system that could get as hot... it makes sense.
This.
Why do people always try to unlock cores on 3+1 power phase? ****'s gonna catch fire.
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post #6 of 20
I'm thinking these people just don't know, but it's pretty dumb
OP: See links in my sig
post #7 of 20
My old Phenom II 550be wouldn't unlock but ran @3.5ghz 1.3v for months before I sold it. I would keep dropping the cpu volts and get as close to 1.3v as possible.

As far as I know, unlocking cores/caches does not up the cpu's TDP. Even if it did, Amd would not rate your mobo as a 145w CPU capable board if it wasn't meant to handle it. As long as your power phase is staying cool, your mobo should be fine.
Edited by Magikherbs - 2/21/11 at 8:42am
post #8 of 20
Quote:
Originally Posted by xd_1771 View Post
Keep the cores locked! You definitely don't want to push a 125W on a weak 3+1 power phase ESPECIALLY on an MSI motherboard! It's basically asking for your PC to explode!
Increasing voltage will only make it worse.

I'm not sure but I think the AUX temperature sensor is the MOSFETs (at idle). They are definitely way too hot at idle, at load they would probably blow easily. I am serious, you must get those cores locked now. No other area in the system that could get as hot... it makes sense.
With my unlock, is 68 C on the VRMs at idle, and 85ish at max load OK?
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My System
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post #9 of 20
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
Keep the cores locked! You definitely don't want to push a 125W on a weak 3+1 power phase ESPECIALLY on an MSI motherboard! It's basically asking for your PC to explode!
Increasing voltage will only make it worse.

I'm not sure but I think the AUX temperature sensor is the MOSFETs (at idle). They are definitely way too hot at idle, at load they would probably blow easily. I am serious, you must get those cores locked now. No other area in the system that could get as hot... it makes sense.
Dude you're scaring me with this fire stuff. Running the cores locked still shows high AUX readings. Any recommendations on a safe board? (DDR3) I always thought MSI made good quality components.
LuckyPhenom
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LuckyPhenom
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Hard DriveOSMonitorPower
Hitachi 500gb 7200 Win7 64bit ultimate / XP dual boot Spectre 20 incher Antec TP-3 550 
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post #10 of 20
Quote:
Originally Posted by xtce650 View Post
Dude you're scaring me with this fire stuff. Running the cores locked still shows high AUX readings. Any recommendations on a safe board? (DDR3) I always thought MSI made good quality components.
MSI has pretty bad VRMs. They tend to blow more often than others.

Try dropping the voltage as low as it will go stable. That helps cool those VRMs, a lot. I got 106 C on the VRMs at load on stock voltage, unlocked, but at current voltage, I get 85ish C load.
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Crucial M4 128GB WD Blue WD10EZEX 1TB WD Green WD5000AADS 500GB Hyper 212 EVO 
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My System
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CPUMotherboardGraphicsRAM
i5 3570k - 4.3 GHz ~1.16V ASRock Z77 Extreme4-M Gigabyte HD 7870 8GB G.Skill Sniper DDR3 1600 9-9-9-24 
Hard DriveHard DriveHard DriveCooling
Crucial M4 128GB WD Blue WD10EZEX 1TB WD Green WD5000AADS 500GB Hyper 212 EVO 
OSMonitorMonitorKeyboard
Windows 7 Crossover 27Q Dell SR2320L Logitech G510 
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