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CPU VTT 1.62V / M/Board 45c why so hot at idle?

post #1 of 5
Thread Starter 
Hi Everyone
I have just noticed some high Voltage plus Temp on the Asus PC Probe II that came with the MoBo.
The System temp is 45c at idle ? red flagged
and the CPU VTT is 1.62V red flagged

The only overclocking is the FSB set at 1360 from 1333MHz which I think is nothing to write home about.

I did adjusted the CPU VTT manually last night and set it at 1.55v in the bios, and the Computers only at idle with a CPU temp of 37c

How can the M/B be so hot at idle? I presume this is the temp of the 680i chip or am I wrong? where is the system temp taken from?

( increased the case extract fan to 100% and it dropped from 47c to 45c)
post #2 of 5
Thread Starter 
Set the CPU VTT to Auto for now and it is now at 1.360Volts so thats sorted for now.
What part of the MoBo requires cooling if the system temp is 45c, by the look of the standard settings in PC Probe the warning setting is 45c so it is obviously a little
to high, I dont have a infeed fan on the rig at the moment do you think this will fix the problem?

Note added, I think the problem is the Arctic freezer cooler7, as the fan is mounted at 90' to the MoBo to blow the air across the cooler,this means that the N/B & S/B copper cooling fins do not get the air flow that would be available if the stock cooler was fitted.
post #3 of 5
Okay first things first, the system or motherboard sensor is located on the upper right hand corner of the mobo.



I would not worry about that reading, it is not the temperature of the northbridge or southbridge. The temperature of the CPU and chipset is more important.

It would benefit you to improve the cooling in that machine though. I would add a fan in the front and keep that door open. I couldn't find a pic of the top of that case, but if there is a opening up there that would be the best to help exhaust all that warm air stuck up there..

Last thing it seems this motherboard over volts the VTT or all the sensors read it wrong. That setting does not affect temps, so it would be okay to leave at 1.55v if that makes your OC more stable.
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Lola
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Charlestown
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CPUMotherboardGraphicsRAM
2500K ASRock Z68 Extreme7 EVGA GTX 760 2x4GB Mushkin 996998 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 830 256GB 2x WD RE3 RAID0 Seagate 3TB Backup 2x Samsung 223B 
CoolingOSMonitorKeyboard
Corsair H80 Win7 64Bit Samsung 226CW Razer Lycosa 
PowerCaseMouseMouse Pad
Seasonic X-650 Antec 1200 Logitech G500 Razer eXactMat 
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Auzentech Prelude 
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post #4 of 5
Thread Starter 
Hi Franz
Thanks for clearing that VTT problem up I will return the setting to 1.55v.
Will alter the PCprobeII scope so as not to flag this up.
Going to order up another 120 sharkoon fan to force air into the case.
The case side panel has a 80mm fan mounting so I am going to fit an adapter to mount the larger fan so its very close to the mobo. Got to check dimensions first.
They are very quite and only cost a few £'s.

It also has fan mountings at the front of the case, so I will see what works best.
The case is just a cheapish one, just bought it locally to get the project up and running will post a picture if I can find one, it even came with a 500w psu, I was going to fit the modular type, but hey this one is working Ok for now.
post #5 of 5
No problem riggie. Another thing I forgot to mention is that PCProbe is buggy and is not recommended. If you want a better monitor try HWMonitor its free and works well on this board. I had to uninstall PCProbe, because it was even causing other programs like Speedfan to post erratic readings.
Lola
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Charlestown
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CPUMotherboardGraphicsRAM
2500K ASRock Z68 Extreme7 EVGA GTX 760 2x4GB Mushkin 996998 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 830 256GB 2x WD RE3 RAID0 Seagate 3TB Backup 2x Samsung 223B 
CoolingOSMonitorKeyboard
Corsair H80 Win7 64Bit Samsung 226CW Razer Lycosa 
PowerCaseMouseMouse Pad
Seasonic X-650 Antec 1200 Logitech G500 Razer eXactMat 
Audio
Auzentech Prelude 
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Reply
Lola
(17 items)
 
Charlestown
(10 items)
 
 
CPUMotherboardGraphicsRAM
2500K ASRock Z68 Extreme7 EVGA GTX 760 2x4GB Mushkin 996998 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 830 256GB 2x WD RE3 RAID0 Seagate 3TB Backup 2x Samsung 223B 
CoolingOSMonitorKeyboard
Corsair H80 Win7 64Bit Samsung 226CW Razer Lycosa 
PowerCaseMouseMouse Pad
Seasonic X-650 Antec 1200 Logitech G500 Razer eXactMat 
Audio
Auzentech Prelude 
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