I have an I7-3770 rig with a Biostar TZ77XE4 motherboard. Last week, my power went out twice in the same day; once in the morning and once late at night. The first time, after power was restored, I had no issues. The second time however, I was not able to turn the computer back on.
I started with the power supply and ran the paperclip and multimeter tests. The unit would briefly start, but not stay on. As a result, I figured the power supply became damaged and ordered a new one.
I installed the new power supply and went to turn the system on thinking that the problem would be fixed. I was wrong. I had the same result as before - completely dead computer. I did run the paper clip test with the new power supply and unlike the old one, it appeared to continuously run and put out the proper voltages. I am now thinking that more than one component was damaged in the power outage.
Here are the symptoms:
- The computer does nothing when pressing the power button. The fans don't turn on, the power supply does not run, there are no beeps and there are no codes displayed on the LED of the motherboard.
- When the power supply is plugged in and the switch on the back of it is turned on, there is a rapidly flashing red light on the motherboard. I read the manual/looked online and could not find out what it meant.
Here is what I've tried, which has had no effect on the issue:
- New power supply. I am able to get it to function when disconnecting it from the motherboard and using the paper clip method. The voltages are correct when measuring using a multimeter.
- Different power cord, different plugs. I had an old computer connected to it anyhow while waiting on the power supply, so I think it's irrelevant.
- Removing all components except the CPU.
- Replacing the CMOS battery and setting the jumper to reset the BIOS.
- Reconnecting all of the leads from the case (Power SW, Reset SW, etc.)
I am honestly not sure what else to try. I do not have a spare compatible CPU/motherboard that I can swap out to test those two components individually. I am thinking I will have to just order a new motherboard and pray it's not the CPU (which I spent close to $400 on when I bought it). Does anyone have any advice on another way I could resolve, or narrow down the cause of the problem? Thanks in advance for the advice!
I started with the power supply and ran the paperclip and multimeter tests. The unit would briefly start, but not stay on. As a result, I figured the power supply became damaged and ordered a new one.
I installed the new power supply and went to turn the system on thinking that the problem would be fixed. I was wrong. I had the same result as before - completely dead computer. I did run the paper clip test with the new power supply and unlike the old one, it appeared to continuously run and put out the proper voltages. I am now thinking that more than one component was damaged in the power outage.
Here are the symptoms:
- The computer does nothing when pressing the power button. The fans don't turn on, the power supply does not run, there are no beeps and there are no codes displayed on the LED of the motherboard.
- When the power supply is plugged in and the switch on the back of it is turned on, there is a rapidly flashing red light on the motherboard. I read the manual/looked online and could not find out what it meant.
Here is what I've tried, which has had no effect on the issue:
- New power supply. I am able to get it to function when disconnecting it from the motherboard and using the paper clip method. The voltages are correct when measuring using a multimeter.
- Different power cord, different plugs. I had an old computer connected to it anyhow while waiting on the power supply, so I think it's irrelevant.
- Removing all components except the CPU.
- Replacing the CMOS battery and setting the jumper to reset the BIOS.
- Reconnecting all of the leads from the case (Power SW, Reset SW, etc.)
I am honestly not sure what else to try. I do not have a spare compatible CPU/motherboard that I can swap out to test those two components individually. I am thinking I will have to just order a new motherboard and pray it's not the CPU (which I spent close to $400 on when I bought it). Does anyone have any advice on another way I could resolve, or narrow down the cause of the problem? Thanks in advance for the advice!