I just tried to breadboard my motherboard outside the case with only the CPU and HSF, ATX 24 pin and CPU 4-pin plugged in. When I booted it up by shorting the 2 start pins with a screwdriver all that happened was the HSF (CPU fan) whirred for a second then stopped, whirred for a second then stopped... no beeps, nothing.
Same when I install 2 sticks of memory. Same when I remove mobo battery for a couple of hours. Same when I install the video card.
Before doing this I tested my PSU and mobo battery with a multimeter that shows the power supply output on all lines and battery charge is ok. Does this mean my mobo is dead?
After reading this my guess is the problem is most likely the mobo that may have one or more faulty capacitors that would explain the irregular behavior I am seeing when I try to start the system that does not post but does sometimes start all the fans including even the one on my graphics card. Does this sound like a feasible explanation?
Or could the problem be a short circuit, faulty CPU or how I have installed the CPU or thermal paste. Maybe my old PSU (RIP) took out the mobo as it died? Or too much coffee (ie me not the computer)....??
To help anybody who may be able to give some advice on what I ought to do next here is the background story:
Yesterday I installed Win7 on my home-built computer (Intel DQ57TM, i7, 4GB Ram, 500GB WD HD, Silverstone 850W SST-ST85F-P PSU) that ran fine -- until I went to celebrate and found the Win7 screen frozen when I got back again. Had to shut the beast off by turning the PSU power off as the switch on the front of the cabinet refused to respond. Since then I have not been able to get it to work again :-(
My prime suspect was the PSU -- until I tested it today first with a paperclip and then with a multi meter that indicates the PSU is working fine. HD also works fine when I plug it into my laptop. So now I am trying to figure out how to figure out if the problem is my Intel DQ57TM mobo?
When I turn the power on the LED comes on in the front of the case and so does the green/red LEDs on the mobo but the computer does not start. Sometimes all the fans run including the fans on my graphics card but the HD does not kick in and the only way I can switch the computer off is by cutting the PSU power switch. Same thing happened when I did this with the HD connected to a separate external power cable rather than the PSU.
Most often the fans run for a second or two then cut off... then start again for a second or two then cut off... sometimes nothing happens.
Same result after removing graphics card, HD, DVD, keyboard, mouse etc and also with only one stick of memory in the 0 slot.
So I would like to ask if this weird behavior indicates the mobo may be faulty or could it be some other problem...?
Same when I install 2 sticks of memory. Same when I remove mobo battery for a couple of hours. Same when I install the video card.
Before doing this I tested my PSU and mobo battery with a multimeter that shows the power supply output on all lines and battery charge is ok. Does this mean my mobo is dead?
After reading this my guess is the problem is most likely the mobo that may have one or more faulty capacitors that would explain the irregular behavior I am seeing when I try to start the system that does not post but does sometimes start all the fans including even the one on my graphics card. Does this sound like a feasible explanation?
Or could the problem be a short circuit, faulty CPU or how I have installed the CPU or thermal paste. Maybe my old PSU (RIP) took out the mobo as it died? Or too much coffee (ie me not the computer)....??
To help anybody who may be able to give some advice on what I ought to do next here is the background story:
Yesterday I installed Win7 on my home-built computer (Intel DQ57TM, i7, 4GB Ram, 500GB WD HD, Silverstone 850W SST-ST85F-P PSU) that ran fine -- until I went to celebrate and found the Win7 screen frozen when I got back again. Had to shut the beast off by turning the PSU power off as the switch on the front of the cabinet refused to respond. Since then I have not been able to get it to work again :-(
My prime suspect was the PSU -- until I tested it today first with a paperclip and then with a multi meter that indicates the PSU is working fine. HD also works fine when I plug it into my laptop. So now I am trying to figure out how to figure out if the problem is my Intel DQ57TM mobo?
When I turn the power on the LED comes on in the front of the case and so does the green/red LEDs on the mobo but the computer does not start. Sometimes all the fans run including the fans on my graphics card but the HD does not kick in and the only way I can switch the computer off is by cutting the PSU power switch. Same thing happened when I did this with the HD connected to a separate external power cable rather than the PSU.
Most often the fans run for a second or two then cut off... then start again for a second or two then cut off... sometimes nothing happens.
Same result after removing graphics card, HD, DVD, keyboard, mouse etc and also with only one stick of memory in the 0 slot.
So I would like to ask if this weird behavior indicates the mobo may be faulty or could it be some other problem...?
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