Kamado King Posted December 12, 2006 Share Posted December 12, 2006 I recently finished my first build and of course ran into a problem The parts are as follows: Asus P5N32-E-SLI e6600 Psu-Corsair HX620 Corsair 6400C4D EVGA 8800GTS When the bulid was complete and powered up it did so with no beep codes but I could get no video on either of two monitors in order to view POST and get into bios. Based on some advice I bought a PNY 7600GS to test the theory of a bad video card. The 7600GS worked fine so I RMAed the video card assuming it was bad. I was in fact even able to flash the mobo bios and make minor changes in bios. I received the new 8800GTS yesterday and installed it this AM. On power up I was back to the same problem, i.e., no beep codes and no video. I have tried this card in both slots and have used the power adapter. Nothing works. I am beginning to wonder if the Corsair HX620 is not providing sufficient power to the 8800. Could this problem be attributed to a bad PSU, and, is so, how do I determine that? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 13, 2006 Corsair Employees Share Posted December 13, 2006 Our HX620W has been tested with that Video card in fact we even tested a Quad SLI setup with that PSU. Did you check with EVGA to make sure there is not some compatibility issue with that MB Link to comment Share on other sites More sharing options...
Kamado King Posted December 13, 2006 Author Share Posted December 13, 2006 Our HX620W has been tested with that Video card in fact we even tested a Quad SLI setup with that PSU. Did you check with EVGA to make sure there is not some compatibility issue with that MB I have checked with EVGA and they are looking into it now. However, when reading the posts on the Asus forum it is clear that other owners of the same mobo have successfully installed the 8800, so I doubt that is the problem. I am beginning to wonder if this PSU is bad and not proving enough power to run this card. How go I check that theory out? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 13, 2006 Corsair Employees Share Posted December 13, 2006 Can you test the PSU and Video card in another MB? Link to comment Share on other sites More sharing options...
Kamado King Posted December 13, 2006 Author Share Posted December 13, 2006 Can you test the PSU and Video card in another MB? I took the 8800 to Compusa today to put in another computer to tell me if it works. I am supposed to go pick it up in an hour or so. While I was there I also bought an inexpensive power supply tester. I am not sure if that will tell me much since it seems that, based upon my earlier efforts, this PSU provides power to the mobo, dvd and hdd. But whether it is putting out enough power for the 8800 will probably remain an open question for awhile. One other thing that I thought of awhile ago concerned the way the monitor that I used works. Specifically, when it is on, but not receiving a signal, the power button flashes yellow. As soon as it receives a signal it turns green and displays. When this computer is powered on, with the 8800, there is never any indication that the monitor ever receives a signal i.e., the light flashes yellow. When the other card was put in it turned green and posted. I cannot help but wonder if this psu is defective and not supplying enough power for this video card. Any help here would be appreciated. UPDATE: I picked up the 8800 from CompUSA this afternoon. The put it into another machine with a 500W psu and it worked fine. It is beginning to look like this specific HX620 is not putting out enough power for this card. How can this be tested to determine if the HX620 is the culprit causing all of these problems? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 14, 2006 Corsair Employees Share Posted December 14, 2006 We can sure try replacing the PSU. Please use the RMA request found in TSXpress or follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! And please note that you are from the forum! Link to comment Share on other sites More sharing options...
Kamado King Posted December 14, 2006 Author Share Posted December 14, 2006 We can sure try replacing the PSU. Please use the RMA request found in TSXpress or follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! And please note that you are from the forum! I bought a psu tester at Compusa. It is for an ATX12v, Ver. 2.0. When I plugged it in I received green lights on +5v, +3.3v, -12v,+5VSB and +12v. However, the -5v light did not light. According to the instructions that indicates a bad psu. Is this correct? If so I need to RMA this psu as it probably responsible for by video woes.Please advise ASAP. Link to comment Share on other sites More sharing options...
DerekT Posted December 14, 2006 Share Posted December 14, 2006 The -5 volt rail reference has been removed from the ATX 2.0 Specification table. If you look here: http://www.corsairmemory.com/corsair/HX_power_supply.html http://i41.photobucket.com/albums/e269/Ropey123/psu.jpg You will not see a -5V designation as it is not in the ATX 2.0 reference and has been removed due to obsolescence. Jan, 2002 - Remove –5V from all power distribution tables. April, 2003 - Remove guidance for –5V rail June, 2004 - Removed -5V reference The -5v spec was transferred to the 5VSB current step which allows for standby modes, etc. http://www.formfactors.org/developer...public_br2.pdf ftp://download.intel.com/design/motherbd/atx_201.pdf The tester has the function for backwards compatibility. Corsair has the most liberal return policy and you will get an RMA. However, I think that once you install the new PSU, you will have the same issue. Do you have a PCI video card? If so, replace the PCI-e one with the PCI and retest. If no issue remains, then you have isolated the issue to either the PCI-e bus (rare) or the PCI-e video adapater (much more likely). Link to comment Share on other sites More sharing options...
Kamado King Posted December 14, 2006 Author Share Posted December 14, 2006 The -5 volt rail reference has been removed from the ATX 2.0 Specification table. If you look here: http://www.corsairmemory.com/corsair/HX_power_supply.html http://i41.photobucket.com/albums/e269/Ropey123/psu.jpg You will not see a -5V designation as it is not in the ATX 2.0 reference and has been removed due to obsolescence. The tester has the function for backwards compatibility. Corsair has the most liberal return policy and you will get an RMA. However, I think that once you install the new PSU, you will have the same issue. Do you have a PCI video card? If so, replace the PCI-e one with the PCI and retest. If no issue remains, then you have isolated the issue to either the PCI-e bus (rare) or the PCI-e video adapater (much more likely). I have actually tested another PCI-e video ( PNY 7600 GS ) that does not require the 6 pin connection and it worked fine, at least as far as POSTing and allowing access to bios. I have now tried 2 8800s, which require the 6 pin connection, and neither worked. The second 8800 I took to Compusa for testing. They put it in another machine with a 500W psu and it worked O.K. Based on this are you telling me the problem is probably the PCI bus on the mobo? If that is true then am I to assume the mobo is bad and would need replacement? Link to comment Share on other sites More sharing options...
DerekT Posted December 14, 2006 Share Posted December 14, 2006 I wouldn't assume. Can you have the system tested with another PSU? That will ensure you have isolated the issue. If another PSU works with this system then your RMA would fix the issue no doubt. However, if another PSU gives a return of error then you have isolated the PSU out of the variable and can move on to isolating the board/video adapter. Link to comment Share on other sites More sharing options...
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