New motherboard upgrade issues

Daniel501 · 01-03-2005, 01:59 PM

Hi! I just purchased a brand new Abit AI7 mobo, installed it in my old Dell V400 case (fit perfectly), attached a new 450W power supply, hooked everything up, but when I turned on power supply, the computer turned on for about 5 seconds, then went dead. The LED indicator froze at 99, which the manual indicates is "Complete Power off Sequence." I really have no idea what to do next. Memory modules (1Gb dual channel) are installed correctly, PSU and heat sink/fan are brand new as well. One thing- there is a cable running from the front panel with no place on the new motherboard to plug it in. Any help would be appreciated beyond words!! Thanks.

johnwill · 01-03-2005, 04:37 PM

I suggest you start by pulling the MB out and powering it up on the bench. I normally fire up a new MB with nothing but a video card, keyboard, and one memory module. You could have something shorted inside the case under the MB, perhaps the fit wasn't as perfect as you thought.

If that's not the issue, the next step would be trying a different P/S, perhaps the one from the computer you're using now?

01-03-2005, 01:59 PM	#1 (permalink)
Daniel501 Registered User Join Date: Jan 2005 Posts: 5 OS: Win/98	New motherboard upgrade issues Hi! I just purchased a brand new Abit AI7 mobo, installed it in my old Dell V400 case (fit perfectly), attached a new 450W power supply, hooked everything up, but when I turned on power supply, the computer turned on for about 5 seconds, then went dead. The LED indicator froze at 99, which the manual indicates is "Complete Power off Sequence." I really have no idea what to do next. Memory modules (1Gb dual channel) are installed correctly, PSU and heat sink/fan are brand new as well. One thing- there is a cable running from the front panel with no place on the new motherboard to plug it in. Any help would be appreciated beyond words!! Thanks.

01-03-2005, 04:37 PM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,157 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	I suggest you start by pulling the MB out and powering it up on the bench. I normally fire up a new MB with nothing but a video card, keyboard, and one memory module. You could have something shorted inside the case under the MB, perhaps the fit wasn't as perfect as you thought. If that's not the issue, the next step would be trying a different P/S, perhaps the one from the computer you're using now? __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience