Hi everyone,
I have a bizarre problem with a PC I built 6 months ago. Here are the specs:
■ Asus F1A55-M LE
■ AMD A4-3400
■ 16 GB RAM
■ Asus Radeon HD 7770
■ Dual boot Windows 7 and Ubuntu 12.04
This build worked perfectly until 2 weeks ago. One night, I was just using a web browser in Windows, and the PC blue-screened with a system service exception message. After that, it would not boot up - at all.
When I turn the power on, the fans spin up, but there's nothing on the display and no POST beep. There's also no power to my USB devices (no light on the bottom of the mouse, nothing when I turn Caps Lock on). I've tried eliminating everything I could. This is what I did to try and fix this issue:
■ Take out everything unnecessary, and just use on-board graphics.
■ Switched the RAM for stuff I know works.
■ Clearing the CMOS settings.
■ Using a different power supply that I know works.
■ Taking everything out of the case and setting it up inside a cardboard box, just to see if anything was shorting against the case.
Here's where it gets weird. I assumed it was a faulty motherboard, so I returned it to the retailer. They tested it, confirmed it was dead, then gave me a replacement.
The replacement lasted an hour, then exactly the same thing happened. I tried all the above diagnostic ideas on the new motherboard. Same situation.
I assumed there was just something in my system that the motherboard didn't like. In frustration, I bought a different motherboard (ASRock A75M-HVS) and set it up. I turned on the system and went into the BIOS to set it up. Five minutes in, the system froze. I rebooted it. Guess what? Nothing on the display, won't POST and no power to the USB devices.
So it's definitely not the motherboard. My instincts are telling me the CPU might be dead. Anyone have any ideas what I could try?
I have a bizarre problem with a PC I built 6 months ago. Here are the specs:
■ Asus F1A55-M LE
■ AMD A4-3400
■ 16 GB RAM
■ Asus Radeon HD 7770
■ Dual boot Windows 7 and Ubuntu 12.04
This build worked perfectly until 2 weeks ago. One night, I was just using a web browser in Windows, and the PC blue-screened with a system service exception message. After that, it would not boot up - at all.
When I turn the power on, the fans spin up, but there's nothing on the display and no POST beep. There's also no power to my USB devices (no light on the bottom of the mouse, nothing when I turn Caps Lock on). I've tried eliminating everything I could. This is what I did to try and fix this issue:
■ Take out everything unnecessary, and just use on-board graphics.
■ Switched the RAM for stuff I know works.
■ Clearing the CMOS settings.
■ Using a different power supply that I know works.
■ Taking everything out of the case and setting it up inside a cardboard box, just to see if anything was shorting against the case.
Here's where it gets weird. I assumed it was a faulty motherboard, so I returned it to the retailer. They tested it, confirmed it was dead, then gave me a replacement.
The replacement lasted an hour, then exactly the same thing happened. I tried all the above diagnostic ideas on the new motherboard. Same situation.
I assumed there was just something in my system that the motherboard didn't like. In frustration, I bought a different motherboard (ASRock A75M-HVS) and set it up. I turned on the system and went into the BIOS to set it up. Five minutes in, the system froze. I rebooted it. Guess what? Nothing on the display, won't POST and no power to the USB devices.
So it's definitely not the motherboard. My instincts are telling me the CPU might be dead. Anyone have any ideas what I could try?