Tdublyou Posted December 14, 2010 Share Posted December 14, 2010 Installed a HX850w - when I turn the power on, for a few seconds the CPU fan runs and the case lights up but then shuts down. 1. What would be the likely cause(s) of this? (2. What is the blue (as opposed to black) SATA connector on the motherboard for?) Link to comment Share on other sites More sharing options...
Wired Posted December 14, 2010 Share Posted December 14, 2010 Questions to ask Dell: 1. Is that system fully compatible with a standard ATX power supply? 2. Check the manual online and/or contact their tech support. Link to comment Share on other sites More sharing options...
Tdublyou Posted December 14, 2010 Author Share Posted December 14, 2010 Yes, according to Dell tech support it is compatible with a standard ATX power supply. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 14, 2010 Corsair Employees Share Posted December 14, 2010 To see if the PSU is having trouble responding to the power on signal from the motherboard you can try the test here: http://forum.corsair.com/v3/showthread.php?t=63991 If you get the same issues when running this test, then lets get the PSU replaced! Request an RMA Link to comment Share on other sites More sharing options...
Tdublyou Posted December 15, 2010 Author Share Posted December 15, 2010 I doubt this would be the problem (?) since the PSU does start the PC + fan. Problem is it shuts down after a few seconds. Not sure I know how to "Hook 1 or more cooling fans to the PSU to give it a load." The test doesn't explain this. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 16, 2010 Corsair Employees Share Posted December 16, 2010 I doubt this would be the problem (?) since the PSU does start the PC + fan. Problem is it shuts down after a few seconds. Not sure I know how to "Hook 1 or more cooling fans to the PSU to give it a load." The test doesn't explain this. They mean to hook the PSU up to a fan in your case, and disconnect the PSU from the graphics cards, HDDs, and motherboard. This test will either show that the PSU is not able to power up properly, or it will tell us that the PSU is able to power up properly, and in that case, it would indicate that something is preventing the PSU from powering up when it is connected to the motherboard. Link to comment Share on other sites More sharing options...
Tdublyou Posted December 19, 2010 Author Share Posted December 19, 2010 Perhaps some explanation of how to hook up the PSU to the fan on the motherboard would be helpful - e.g. I have no knowledge how to do that - the CPU fan is connected to the m'board. Problem resolved. Made the following changes. Would you hazard a guess as to which of the following fixed the problem? 1. Used modular PCI-E cable provided instead of hardwired one. 2. Removed unusued power connectors in the middle or at the beginning of each cable and move them to the end (i.e., connected all devices to the first connectors in sequence on a given cable). Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 21, 2010 Corsair Employees Share Posted December 21, 2010 Problem resolved. Made the following changes. Would you hazard a guess as to which of the following fixed the problem? 1. Used modular PCI-E cable provided instead of hardwired one. 2. Removed unusued power connectors in the middle or at the beginning of each cable and move them to the end (i.e., connected all devices to the first connectors in sequence on a given cable). Either one of these results may indicate an issue with the PSU itself or the cable in question. I would be interested to know if 1. did both fixed PCIE cables gave you the same problems. Or if 2. were you able to duplicate this with multiple cables or only a single cable. Link to comment Share on other sites More sharing options...
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