cyberoll Posted February 1, 2006 Posted February 1, 2006 I was watching a DVD movie and suddenly the computer turned off. I opened the case and only two LEDS were ON: the standby led and the dram. The diagnostic leds were all off. I got nothing from them. So I tried reseting the CMOS (tried the long reset to). Tried to power on the motherboard off the case, with no memory, one memory, etc. What a noticed is that if I try to power on the machine with only 20 pins of the PSU, all 4 diagnostic leds flash and turn off almost instantanely. If I plug all 24 pins, the leds don't even flash. I couldn't find any other PSU to try on my board, but i tried my PSU on another machine and works perfectly. (But the other machine only needed a 20 pin PSU). Quote Share this post Link to post Share on other sites More sharing options...
Guest Seeker Posted February 1, 2006 Posted February 1, 2006 I've had a simlar problem. The lights were fine, but the board wouldnt turn on, and when it did, it did it briefly. I disconnected all my unnecessary devices, like hard drive, cd rom drivers etc. and left the system alone for a bit with the CMOS reset. This seemed to have fixed it.. -Sean Quote Share this post Link to post Share on other sites More sharing options...
cyberoll Posted February 1, 2006 Posted February 1, 2006 There is one thing troubling me: my PSU is a 420W. DFI says you should have at least a 480W, so do you think this is the problem? The system worked fine for 4 months. I tried to clear CMOS for 13 hours. I'm gonna try to RMA the board today, so there si no time for a 24 hour clear Quote Share this post Link to post Share on other sites More sharing options...
Reinvented Posted February 1, 2006 Posted February 1, 2006 There's ALWAYS a possibility for a power supply to die after it's time. Especially one that doesn't meet the requirements of the board. Read up on the rules before you ask for help (ie, get a recommended PSU). Quote Share this post Link to post Share on other sites More sharing options...
boatasiaus Posted February 1, 2006 Posted February 1, 2006 The first thing i would try is a new PSU. The one you've got is underpowered, and doesn't have the 24 pin mobo connector The second thing to try is flashing the BIOS Quote Share this post Link to post Share on other sites More sharing options...
ganders75 Posted February 1, 2006 Posted February 1, 2006 Rather than RMA the board, i'd definately look at the PSU. What was the other system that you tested it on? I assume that it is an older machine? These boards are notorious for nice, clean power... Your PSU is way underpowered for a DFI board, so will have been working over spec to run your system... I think it is likely that the PSU has run out of grunt at the top end - so it may still be able to run your older system but can no longer supply consistent enough power to your newer one... Quote Share this post Link to post Share on other sites More sharing options...
crashthenet44 Posted February 1, 2006 Posted February 1, 2006 Read up on the rules before you ask for help (ie, get a recommended PSU). Now this is A+ technical suppport. Where in the rules does it say to read the PSU guide or any guide for that matter. Quote Share this post Link to post Share on other sites More sharing options...
ganders75 Posted February 1, 2006 Posted February 1, 2006 FYI: The following was posted by angry_games quite a while ago: http://www.dfi-street.com/forum/showpost.p...22&postcount=34 If you read the whole thread, it is quite a strong warning on why you should always, always use a recommended PSU... Quote Share this post Link to post Share on other sites More sharing options...
cyberoll Posted February 1, 2006 Posted February 1, 2006 Ok guys. Gonna try a new PSU. I got some advice in a brazilian board that this PSU should be OK. I thought you only needed 480W if you were gonna use SLI, but i guess that isnt't the case. I just hope the dead PSU didn't ruin my motherboard... The only problem is that no store in my home city has a 24 pin PSU. So im gonna have to BUY one in order to test it! Oh well... EDIT: This PSU i have is in fact 24 pin native. You can take off the 4 pins so I can use in older systems. get it? It IS 24 pins native, but it has only 420W of power Quote Share this post Link to post Share on other sites More sharing options...
ganders75 Posted February 1, 2006 Posted February 1, 2006 The thread to have a look through is here : http://www.dfi-street.com/forum/showthread.php?t=10854 One main problem is that some less scupulous vendors will over rate their PSU to try and suck you in. Some of them are quoting max output that the PSU cannot maintain... with others the output just isn't stable. These boards need good, solid, clean power - and you'll find your life alot easier with one of the recommended power supplies from the list... That said, other people may have other opinions on what your problem may be... Quote Share this post Link to post Share on other sites More sharing options...
WebMajstr Posted February 1, 2006 Posted February 1, 2006 Just a question: You are talking about some diagnostic leds on Ulrta-d? I have ultra-d, but I don't see any led :S Quote Share this post Link to post Share on other sites More sharing options...
SpeedEuphoria Posted February 2, 2006 Posted February 2, 2006 it is at the bottom of the board bellow the last pci slot their is a yellow led next to it and 4 red ones that turn on then go off 1 at a time when booting Quote Share this post Link to post Share on other sites More sharing options...
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