Hi all,
I have an office with a number of PCs. A while ago I has 1 PC start having problems booting up. About every other time I pushed the power button, the LEDs would come on, the fans would spin, but the PC would not even reach the post screen - just a blank screen and no initial beep (which normally happens during boot). If I turned the power off at the PSU, then powered on the PC and it would run fine all day.
I tried troubleshooting this by swapping out each individual component at a time, including PSU, motherboard, memory, and hard drive, all with the same result. I finally ended up putting the whole PC aside and setting up a new one from scratch, including new case. I chalked it up to maybe two defective motherboards (both ECS K7VZM) and forgot about it.
Recently, I've had two other PCs begin to exhibit this problem. One also has an ECS K7VZM, but the other is an Asus A7V600. I thought maybe my PSUs were going bad, as they were getting fairly old (and were only 300w) but I swapped out one PSU today with a 340w and there was no change in the problem. Virtually every other boot attempt results in fan running, lights on, but no post. The PC only has the motherboard with a Duron 1500mhz, a 20GB HD, 1 NIC and 1 PVI video card, so we're not talking about a lot of power need here.
Any thoughts on what the problem could be? The thing that has me most puzzled is how only every other boot attempt does this, while the other attempts boot up and run just fine all day.
I have an office with a number of PCs. A while ago I has 1 PC start having problems booting up. About every other time I pushed the power button, the LEDs would come on, the fans would spin, but the PC would not even reach the post screen - just a blank screen and no initial beep (which normally happens during boot). If I turned the power off at the PSU, then powered on the PC and it would run fine all day.
I tried troubleshooting this by swapping out each individual component at a time, including PSU, motherboard, memory, and hard drive, all with the same result. I finally ended up putting the whole PC aside and setting up a new one from scratch, including new case. I chalked it up to maybe two defective motherboards (both ECS K7VZM) and forgot about it.
Recently, I've had two other PCs begin to exhibit this problem. One also has an ECS K7VZM, but the other is an Asus A7V600. I thought maybe my PSUs were going bad, as they were getting fairly old (and were only 300w) but I swapped out one PSU today with a 340w and there was no change in the problem. Virtually every other boot attempt results in fan running, lights on, but no post. The PC only has the motherboard with a Duron 1500mhz, a 20GB HD, 1 NIC and 1 PVI video card, so we're not talking about a lot of power need here.
Any thoughts on what the problem could be? The thing that has me most puzzled is how only every other boot attempt does this, while the other attempts boot up and run just fine all day.
