matthew1g Posted May 24, 2008 Share Posted May 24, 2008 So I come on today to start up my PC. Press the power button, and the thing turns on... for a split second. it just turned off by itself afterwards. I tried changing power cables, Power outlets. But Still the same result. So I open up the case, and reconnected everything. Same thing happened, Fans light up, but turns off in a split second. I turned on to the ram, Removed a stick. it lit up fine. So in thinking that I had a faulty ram stick, I tried troubleshooting that. Tried in another slot, by itself, Anyway I tried every combination of setup imaginable. it just didn't want to even light up. Not even for a split second. even without the Rams taken out, samething happens. the only thing that's on the the Green led on the mobo. just that. could it be a fried MOBO? (I have no idea why.. It's been off ever since it last worked fine) Specs: Q66 512 88Gt 1000mhz 4gb OCZ reapers ASUS P5KC 650W coolermaster eXtremepower Link to comment Share on other sites More sharing options...
Girish Posted May 24, 2008 Share Posted May 24, 2008 What about the CMOS battery? Link to comment Share on other sites More sharing options...
Star-Lord Posted May 24, 2008 Share Posted May 24, 2008 The green light you mentioned is the "STANDBY LED" when ON means mobo has passed all tests when off means motherboard needs replacement. So I'm going to guess it would be either an overheated CPU(Check CPU FAN) an overloaded or just bad Power Supply. Good Luck! Link to comment Share on other sites More sharing options...
matthew1g Posted May 24, 2008 Author Share Posted May 24, 2008 (edited) just tested the Psu with another PC.. Pentium 4 3.0ghz ht, 1gb DDR, 2 DVD-RW, 2 IDE hard disks and a 680XT.. The 68XT requires a 500W as a minimum.. and with the devices connected, the PSU was certainly at a higher load. it worked fine. The CPU is cooled with a Zalman CPNS 9700 LED that keeps it at 32 degrees idle and 40 @ load, the Case has 2x250mm case fans and an 80mm fan intake, and a 120mm exhaust.. So I doubt that's the problem. Trying out the CMOS clear trick as we speak.. Oh, and I tried the P4's 750W Hiper PSU (how ironic.. the older system has a better PSU, but oh well) It didn't boot either... Edited May 24, 2008 by matthew1g Link to comment Share on other sites More sharing options...
Picolini Posted May 24, 2008 Share Posted May 24, 2008 Hmmm, I was going to suggest the PSU as well... Might be the mobo, which sucks. You've gotta basically tear the whole damn thing down... and in the end you might just find it was your processor! Can your current mobo seat the P4? Not sure if ones that support quads can even do that, but I don't think it'd hurt to test the CPU first. It'd be better than stripping the whole mobo down, getting a new one, and putting it all back in to find it still isn't working. Also, wouldn't the PC still run with a dead cmos battery? I thought the mobo would just lose the stored info/settings and stuff. Link to comment Share on other sites More sharing options...
matthew1g Posted May 24, 2008 Author Share Posted May 24, 2008 Nah Pentium 4 is a Socket 478. Either way.. I posted on MY pc now. Turns out a simple CMOS clear fixed the problem. I need to get rid of this darn mobo, crappy POS. I'm still baffled about how it managed to get both it's BIOS chips corrupted (it's a dual BIOS thing). I'll wait for P45 DFI's though.. Link to comment Share on other sites More sharing options...
[CTD]LaBan Posted May 24, 2008 Share Posted May 24, 2008 btw, same thing happened to me when my HD died. Link to comment Share on other sites More sharing options...
SyphonPayne Posted May 24, 2008 Share Posted May 24, 2008 Your problem, is that it's an ASUS. Link to comment Share on other sites More sharing options...
Democrab Posted May 25, 2008 Share Posted May 25, 2008 The green light you mentioned is the "STANDBY LED" when ON means mobo has passed all tests when off means motherboard needs replacement. So I'm going to guess it would be either an overheated CPU(Check CPU FAN) an overloaded or just bad Power Supply. Good Luck! No, Standby light means the motherboard is getting power, I have two dead asus boards that have blown caps, and one has a chip that fell off (By itself too, in normal usage situations) and they both have working standby LEDs As I said on MSN, Get DFI or Gigabyte, ASUS just plain SUCKS, the only good ASUS board isn't even made by them, but by one of the companys they own. (ASrock 4COREDUAL-SATA2) Link to comment Share on other sites More sharing options...
Picolini Posted May 25, 2008 Share Posted May 25, 2008 I've got an Asus P5N-e 650i, and it's worked just fine for me so far. Actually, I think it's a year old in a few days! Link to comment Share on other sites More sharing options...
anus Posted May 25, 2008 Share Posted May 25, 2008 I really don't know what Asus did to become so horrible all of a sudden, especially when their motherboards used to be top quality just a few years ago . I recommend Gigabyte, DFI or Abit for motherboards myself, rock solid performance, good overclocking capabilities, etc. My advice is to stay away from Asus until they get their screw ups sorted out. Link to comment Share on other sites More sharing options...
matthew1g Posted May 25, 2008 Author Share Posted May 25, 2008 especially when their motherboards used to be top quality just a few years ago Exactly Why I got asus in the first place. Didn't think They'd have fallen to such extremities to where the mobo is sometimes not even stable at stock. I'll wait for P45 like I said, it's gonna replace p35 AFAIK, so might as well upgrade in the process. Link to comment Share on other sites More sharing options...
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