Is there a good way to verify that the motherboard is bad.. I've got two here that I've put new power supplies in, only to eat the wasted power supply because they still don't work. Removed all the components, etc. and reseated them and I'm about 99% sure it's the motherboard, but hate to replace it if its something else..
Virgil http://www.KeepAmericaAtWork.com -----Original Message----- From: profox-boun...@leafe.com [mailto:profox-boun...@leafe.com] On Behalf Of Nicholas Geti Sent: Tuesday, February 16, 2010 5:32 PM To: ProFox Email List Subject: Re: [NF] Woe is ME with My DEAD PC... As I said before, your power supply is dead. The way it works is it first put 5v on the motherboard which verifies various functions on the motherboard then responds by raising the voltage on a signal wire back to the power supply telling it to kick in the 12v lines to start up the hard drives, etc. If that handshaking doesn't occur, then you get the response you are seeing. I have never seen a computer that integrates the power supply into the chassis. They are always very easy to pull out and replace. ----- Original Message ----- From: "Kurt Wendt" <kurtwe...@waitex.com> To: <profox@leafe.com> Sent: Tuesday, February 16, 2010 3:01 PM Subject: RE: [NF] Woe is ME with My DEAD PC... > Peter - thanks for your extensive reply - as well as to all the others > who have given me input on this problem. So, to follow up on what I > tried this weekend... > > -----Original Message----- > From: profoxtech-boun...@leafe.com [mailto:profoxtech-boun...@leafe.com] > On Behalf Of Peter Hart > Sent: Saturday, February 13, 2010 8:32 AM > >>Hi Kurt >>Tried to reply to message sent to my support email address but message >>could not be delivered. > > Not sure what happened with that Peter. Although, at my job here - tons > of things are blocked going out - and maybe your e-mail was blocked > coming in! Although, I did CC: that message to my home e-mail, and if > you did try doing a reply via Reply To All - the message should have at > least come thru to my home e-mail. Oh well... > > >>First of all my experience >>Electronics from 58 to 83 when I turned my attention to Computers. >>I am a qualified computer engineer... > > You are Obviously way more of a HW techy than myself - I'm more > of an amateur at the HW stuff - although I am not afraid to get my hands > dirty on it - which is obvious since I built 3 of my own PC's in the > past decade or so. But, once things go bad - then it becomes a little > more complicated for me... > >> I am not an amateur, although the same can't be said of my FoxPro >> Programming/grin > > Thanks for that chuckle! > >>Now to your problem. >>I understand that you have other Computers available which are working. > > Well - that's not completely true. My prior workstation is also > sitting dead - and I haven't tried resuscitating it in a long time! > Although, that being said - I think it may be time to also get that > prior PC running again - and make it available to my son (as he has my > wife's old hand-me-down Dell at 600Mhz - which is FAR slower that my > older dead 2.8Ghz or so PC). But, bringing that older PC back to life > isn't as important as my current system. So - onwards... > > >>My first line of diagnosis would be to se a power supply tester but as >>this is not available I would take out the suspect Power Supply and > plug >>it into a working computer. It is not necessary to unplug... >>Cheers >>Peter > > That doesn't look like an easy option - since I think the power supply > came with the case - as it's a fancier Antec case - and the wiring from > the power supply looks to be kind of integrated into the case. Anyway - > I shall just relate what I tried so far... > > I pulled the Fan/Heatsink combo off the CPU. I cleaned off the Heatsink > and the top of the chip - of the old "epoxy"/heat transfer paste (don't > know the official name of the stuff). I then put on some new "epoxy" > stuff (although its not 'new' - as the tube is old - but, I figured it > would still do the job) and put the Heatsink/Fan back on top - after > first cleaning off a lot of dust in the Fan. > > It was interesting - because - while I left everything else disconnected > (video cable, keyboard, etc.) and just plugged in the power - I turned > it on - and the fans in the system stayed on for an extended period. At > that point - I shut the power off - and then tried powering it back on > again. But, at the 2nd attempt - it went BACK to the old ways - of the > fans coming on for a second or less - then just shutting off. > > At this point - I am wondering if I should just go out and get a new CPU > and HeatSink/Fan. > > Or - should I first just try that switching to another Power supply > (trying to take the one from my other Dead PC)? > > TIA, > -K- > [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/fa337c28072c466fa69b6d919a9f0...@bierschwc0bba6 ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
