On Thu, Nov 20, 2014 at 06:41:38PM -0500, Kevin Cozens wrote: > Greetings, all. > > Someone recently reported a problem booting their computer. I've had > my first ever major failure of a system where I can't boot my > machine. My situation is a little different than in the previous > thread about a boot problem. FYI, my machine is an HP m7680n with an > Intel Core 2 Duo CPU that I have had for several years and gets a > lot of use every day. > > When the machine powers up all the fans start spinning and the > drives do their initial power on reset activities. The CPU doesn't > seem to warm up AFAICT (unless I haven't let the system run long > enough for it to warm up). > > The first time I had a problem starting up the system I power cycled > the machine a few times and got it to boot. I did that on three > consecutive days but starting with the fourth day power cycling the > machine is no longer able to kick the machine in to showing signs of > life. > > A POST card shows ---- instead of any actual code. All the LEDs on > the POST card light that are related to power supply voltages. CLK > is also lit up and the RESET LED comes on briefly at power up and > power down. The IRDY and FRAME lights are always off. > > I have tried to boot after pulling all plug-in cards and even after > also pulling the RAM and disconnecting the SATA drives. The power > supply is a Corsair TX650M that is only a few months old. The > separate four pin 12V connector to the MB is reading within > tolerance. > > There are no signs of bad capacitors on the MB (ie. none that have > bulges on the top). I don't have an ESR meter to propery test the > individual capacitors. > > Am I looking at a motherboard failure or is it possible the CPU has > died? I read the C2D is quite reliable so CPU failure seems less > likely than an MB failure but anything is possible when dealing with > electronics.
Well short of swapping parts it can be hard to determine the problem. Could be motherboard, power supply, CPU, ram, video card (if not onboard). -- Len Sorensen --- GTALUG Talk Mailing List - [email protected] http://gtalug.org/mailman/listinfo/talk
