Comments on: Bad Power Supply (PSU) – How to Check If a Power Supply is Dead http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/ PC Troubleshooting and Diagnostic Information Sat, 15 May 2010 20:41:51 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: admin http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1058 admin Sun, 07 Mar 2010 20:14:04 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1058 Doug, I personally would not recommend opening up a PSU as there are components that can still retain a charge a deliver a dangerous shock, and this will void your warranty (if applicable). Power supplies and other parts in a PC are know as FRU’s or “Field Replacable Units” meaning the part itself is designed so it can be replaced in the event of failure. In most cases people will not troubleshoot on the component level of individual parts. If your power supply is still within the 1-2 year range you can check to see what the manufacturer warranty period is and submit at RMA request with the manufacturer to get the power supply repaired / replaced. Otherwise you would probably be better off buying a new PSU. Doug,

I personally would not recommend opening up a PSU as there are components that can still retain a charge a deliver a dangerous shock, and this will void your warranty (if applicable). Power supplies and other parts in a PC are know as FRU’s or “Field Replacable Units” meaning the part itself is designed so it can be replaced in the event of failure. In most cases people will not troubleshoot on the component level of individual parts.

If your power supply is still within the 1-2 year range you can check to see what the manufacturer warranty period is and submit at RMA request with the manufacturer to get the power supply repaired / replaced. Otherwise you would probably be better off buying a new PSU.

]]> By: doug allen http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1057 doug allen Sun, 07 Mar 2010 18:40:14 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1057 have used power supply tester all but one led lites,-5 led off. this is telling me no power!. now that i know this, how to i fix it. the atx 4 pin power conector was instaled wrong an caused short in psu. what part did this short damage so it can be relaced have no schematic diagram to go by.psu blue star 680w sli gamer. thank you have used power supply tester all but one led lites,-5 led off. this is telling me no power!. now that i know this, how to i fix it. the atx 4 pin power conector was instaled wrong an caused short in psu. what part did this short damage so it can be relaced have no schematic diagram to go by.psu blue star 680w sli gamer. thank you

]]> By: nayab http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1055 nayab Wed, 03 Feb 2010 05:39:24 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1055 Thanks a lot.I'll try what you advise. Nice site btw. Thanks a lot.I’ll try what you advise. Nice site btw.

]]> By: admin http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1054 admin Mon, 01 Feb 2010 16:20:56 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1054 Try this first: http://www.computer-how-to-guide.com/memory-troubleshooting/how-to-test-bad-memory/ Try this first:

http://www.computer-how-to-guide.com/memory-troubleshooting/how-to-test-bad-memory/

]]> By: nayab http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1053 nayab Mon, 01 Feb 2010 08:12:39 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1053 sorry i forgot my specs XP SP2 Mobo MSI 770-C45 (AMD 770 DDR3 PCI Exp-16x) AMD PhenomII 550 Black edition HDD WDC 320Gb Sata2 c16Mb Blue DVD-RW Lite-On 24x Sata RAM VISion 2Gb PC 10600 ATI HIS 4670 ICEQ 1Gb 128 Bit DDR3 PSU Acbel 420W sorry i forgot my specs
XP SP2
Mobo MSI 770-C45 (AMD 770 DDR3 PCI Exp-16x)
AMD PhenomII 550 Black edition
HDD WDC 320Gb Sata2 c16Mb Blue
DVD-RW Lite-On 24x Sata
RAM VISion 2Gb PC 10600
ATI HIS 4670 ICEQ 1Gb 128 Bit DDR3
PSU Acbel 420W

]]> By: nayab http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1052 nayab Mon, 01 Feb 2010 07:47:52 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1052 Pls can you help me? When I exit or open several games, suddenly appears a blue screen that IRQL not less or equal. Then I have to wait for dumping memory to disk for 15 mn . There is some instructions on the blue screen but I prefer to check with people who know better than me. Actually I don't know about computer but a little. This is the the info on the blue screen I got many times. A problem has been detected and windows has been shut down to prevent damage to your computer. IRQL_NOT_LESS_OR_EQUAL Then it tells that if he appears more than 1 time to follow these steps, ie to check if any hardware or software is properly installed (I’ve just installed few software like games) If problems continue - apart removing any new installed software- it tells to disable BIOS memory options such as caching or shadowing. (I don’t know how to make this). BTW if I remove some software recently installed can I reinstall them later? I mean I hope didn’t buy them in vain. Then at last there is technical info: STOP: 0x0000000A (0x000004F4, 0x00000002, 0x00000001, 0x806E4A16). And the beginning dump of physical memory to disk . Pls help me because I feel it's not good news for my kompie (a windows message appears after it restarts with "serious error" It's a new computer. Is it a memory, PSU, driver, etc or else problem? Thanks Pls can you help me?
When I exit or open several games, suddenly appears a blue screen that IRQL not less or equal.
Then I have to wait for dumping memory to disk for 15 mn .
There is some instructions on the blue screen but I prefer to check with people who know better than me. Actually I don’t know about computer but a little.
This is the the info on the blue screen I got many times.

A problem has been detected and windows has been shut down to prevent damage to your computer.
IRQL_NOT_LESS_OR_EQUAL
Then it tells that if he appears more than 1 time to follow these steps, ie to check if any hardware or software is properly installed (I’ve just installed few software like games)
If problems continue – apart removing any new installed software- it tells to disable BIOS memory options such as caching or shadowing. (I don’t know how to make this). BTW if I remove some software recently installed can I reinstall them later? I mean I hope didn’t buy them in vain.
Then at last there is technical info:
STOP: 0×0000000A (0×000004F4, 0×00000002, 0×00000001, 0×806E4A16).
And the beginning dump of physical memory to disk .

Pls help me because I feel it’s not good news for my kompie (a windows message appears after it restarts with “serious error” It’s a new computer.
Is it a memory, PSU, driver, etc or else problem?
Thanks

]]> By: admin http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1042 admin Mon, 07 Dec 2009 16:39:45 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1042 Frederick, Make sure you have the 20/24 pin ATX power lead connected as well as the 4 pin ATX power lead connected to the motherboard. Check if your PSU has a red voltage switch and make sure it is set to the proper voltage. (115 USA / 230 Europe). In my experience no LEDs on the board are a sign of a bad PS. While it may be sending power to the board it may be under powered or have a single bad rail on one of the leads. If you have a second known working PSU you can test with the combo I would recommend that as you could rule out a bad rail or incorrect voltage. Otherwise you may want to consider picking up a power supply tester as they are inexpensive and do the work of a multimeter, mut they are much faster as they can test multiple leads at once. Frederick,

Make sure you have the 20/24 pin ATX power lead connected as well as the 4 pin ATX power lead connected to the motherboard. Check if your PSU has a red voltage switch and make sure it is set to the proper voltage. (115 USA / 230 Europe).

In my experience no LEDs on the board are a sign of a bad PS. While it may be sending power to the board it may be under powered or have a single bad rail on one of the leads. If you have a second known working PSU you can test with the combo I would recommend that as you could rule out a bad rail or incorrect voltage. Otherwise you may want to consider picking up a power supply tester as they are inexpensive and do the work of a multimeter, mut they are much faster as they can test multiple leads at once.

]]> By: frederick thomas http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-1041 frederick thomas Mon, 07 Dec 2009 12:25:12 +0000 http://www.computer-how-to-guide.com/?p=80#comment-1041 used a meter and can confirm that there is power to the mobod, this shows up on the mobod connection where the start and LED's are connected, but no LED lights are lighting up also the fan on the PSU is not turning APPRECIATE ANY HELP YOU CAN GIVE ME used a meter and can confirm that there is power to the mobod, this shows up on the mobod connection where the start and LED’s are connected, but no LED lights are lighting up also the fan on the PSU is not turning

APPRECIATE ANY HELP YOU CAN GIVE ME

]]> By: Diagnose & Troubleshoot a NO POST Motherboard - My Motherboard Won’t Start http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-754 Diagnose & Troubleshoot a NO POST Motherboard - My Motherboard Won’t Start Thu, 11 Jun 2009 18:30:41 +0000 http://www.computer-how-to-guide.com/?p=80#comment-754 [...] - How to Check for a Bad Power Supply. [...] [...] – How to Check for a Bad Power Supply. [...]

]]> By: How to Check for “Bad Memory” - Memory Test and Diagnostic http://www.computer-how-to-guide.com/power-supply-troubleshooting/failed-power-supply-psu-diagnostic/comment-page-1/#comment-742 How to Check for “Bad Memory” - Memory Test and Diagnostic Fri, 01 May 2009 16:59:31 +0000 http://www.computer-how-to-guide.com/?p=80#comment-742 [...] 04. Diagnosing and Troubleshooting a Bad Power Supply Unit (PSU) [...] [...] 04. Diagnosing and Troubleshooting a Bad Power Supply Unit (PSU) [...]

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