Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Failing PSU?

03 May 2014   #21
carwiz

Windows 7 Pro-x64
 
 

THAT The Asus snapshot looks good but you can't tell by just one view. You have to determine if they vary by more than +/- 5%. You should monitor the voltages while under a load.

And, you still haven't shown me the voltage area of the sensor window. Scroll down.


My System SpecsSystem Spec
.
03 May 2014   #22
PSCO2007

Windows 7 Professional X64
 
 

Here you go ..


Attached Thumbnails
Failing PSU?-sensor-temp.jpg  
My System SpecsSystem Spec
03 May 2014   #23
PSCO2007

Windows 7 Professional X64
 
 

Quote   Quote: Originally Posted by carwiz View Post
THAT The Asus snapshot looks good but you can't tell by just one view. You have to determine if they vary by more than +/- 5%. You should monitor the voltages while under a load.

And, you still haven't shown me the voltage area of the sensor window. Scroll down.
Quote:
You should monitor the voltages while under a load.
I ran Prime95 for about 30 minutes and it said Stable.
My System SpecsSystem Spec
.

03 May 2014   #24
carwiz

Windows 7 Pro-x64
 
 

Well, those AUX sensors for the Nuvotron 67790 must be undefined in HWiNFO but the voltages look in range.

Looks to me like it all falls back on ASUS and the BIOS since the problem goes away by disabling hot swap. But, I don't know if there are additional options available in the BIOS for controlling hot swap. When all else fails, read the manual.
My System SpecsSystem Spec
04 May 2014   #25
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

It is a problem sometimes that the sensors themselves can be unreliable, either in detecting fault or in reporting OK when it is not. And the software that uses the readings from the sensors adds another layer of uncertainty.

Using a multimeter is the best a home tinkerer can do in diagnosing a power supply. And even that is a crude test. But it is far more accurate than relying on the motherboard's sensors. Accurately testing a power supply requires far more sophisticated equipment than most folks would have at home.

If you can't borrow a multimeter then the next best thing would be to borrow another power supply.

Looking in another direction: It is possible that there is a flaw in the motherboard's logic circuit that is triggering a "power on" event. When the system is OFF but the power supply is still switched on there is standby voltage to the board (and usually a green indicator LED is on). To signal a power-on call all that is needed is that the 2 wires on the Power Switch circuit to close or make contact, even briefly. If there is a flaw in the logic circuit that could trigger your symptom.

The power logic circuit consists of
  • The power supply (it will read the call and turn on - if it is short circuiting inside the supply that would do it.)
  • The motherboard 20+4 cable or connection
  • The motherboard Case input PWR SW block or circuit pathway.
  • The Case PWR SW wire.
  • The Case Power Switch (which if defective could be making contact on just a vibration from walking on the floor)
You might try an experiment by disconnecting the PWR SW lead from the case from the motherboard for a while. You can start the PC by just touching the 2 leads together with the blade of a screwdriver while testing. This at least would eliminate the switch and wires from the equation.
My System SpecsSystem Spec
04 May 2014   #26
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Yep you are right TV the grey cable at pin 8 on the 24 pin plug is the Power_Good turn on signal and has to be between 2.4 and 6v outside of those volts the machine will either not turn on / power on.

Pity the OP has no multimeter it would be a simple thing to find out.
My System SpecsSystem Spec
04 May 2014   #27
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Ok I meant to mention too if you use a meter to diagnose those voltages DO NOT use an analogue meter (one with a needle that swings across the readout face) because it injects a voltage typically 9v into the system for diagnostic purposes and that could end up bricking the board.
My System SpecsSystem Spec
Reply

 Failing PSU?




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
I think my HDD is failing , PLEASE HELP
Everytime I turn on my laptop this shows up : Checking file system on c: file system is ntfs One of the disks have to be checked for consistency. First I let it finish but then it didn't show anything so I shut down my laptop by holding the power button. Now everytime I turn on my laptop i...
General Discussion
Is My HDD failing
Is My HDD failing Hello All, 2 days ago i installed a new Hitachi Deskstar 7K3000 3TB 7200RPM, Im using it solely for playing all my loss less music. Its seems to be chugging along nicely until i ran...
Hardware & Devices
DNS keeps failing
Hi, I bought a new router that was a Netgear DGND3300v2, this was replacing a previous Netgear which was continuously cutting out (because it was 2 and a half years old). I setup the router fine as am using the connection now, but on frequent occasions it reports my DNS is unavailable. This is...
Network & Sharing
PSU Failing?
Hey guys, I got a new graphics card the other day, went from a HD 5850 to a GTX 560ti OC'ed edition. My PSU was quiet as quiet can be when gaming with the old GPU but now the PSU is making a whining noise, not mega loud but loud enough that you can hear it. Only happens with gaming. ...
Hardware & Devices
Failing SSD ?
Hi guys is there any way to tell if my SSD is failing? I have had so many problems recently with it I have had to re-install Windows at least 8 times as it has some how got corrupted it randomly reboots and then the memory dump fails and I try to reboot only to get the message that Windows can not...
Hardware & Devices
something must be failing?
ok so, a couple of weeks back the pc started to flash up error messages on boot. such as - bootmgr is corrupt system cannot boot -a disk read error occurred. press Ctrl+Alt+Del to restart - (block of text) status: 0xc00000e9. info: an unexpected I/O error has occured - BSOD - stop:...
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:46.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App