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Hi, I'm afraid that my old thread was maybe too general and didn't get much attention as a result, so I want to ask one specific question from it.
Reference: http://forums.overclockers.co.uk/showthread.php?p=10115316
I have taken readings with both CPU-Z and SpeedFan of the voltages supplied to my system.
On the 12V line, it never seems to be 12V. For example, I just took some readings, and here they are:
CPU-Z:
1.22 Volts [0x4C] (CPU VCORE)
1.84 Volts [0x73] (VIN1)
3.34 Volts [0xD1] (+3.3V)
4.92 Volts [0xB7] (+5V)
0.64 Volts [0xA] (+12V)
-4.03 Volts [0x3F] (-5V)
5.05 Volts [0xBC] (+5V VCCH)
3.26 Volts [0xCC] (VBAT)
SpeedFan:
1.15V (Vcore1)
1.84V (Vcore2)
3.34V (+3.3V)
4.92V (+5V)
0.58V (+12V)
-16.67V (-12V)
-5.86 (-5V)
5.05V (+5V)
3.26V (Vbat)
As you can see, +12V line is reading only 0.64V, and the -12V line is at -16.67V!
I thought this might be the PSU, but I got an RMA on it, installed the new one, and I have exactly the same problem.
1. Am I correct in assuming that the 12V should be reading 12V at all times? Presumably the draw on it in Amps varies dependant on load, but the voltage should be constant?
2. What could cause this apart from the PSU? What is the motherboard involvement in power regulation?
3. Could any of you please run SpeedFan or similar and confirm if you are seeing 12V on the +/-12V lines?
Reference: http://forums.overclockers.co.uk/showthread.php?p=10115316
I have taken readings with both CPU-Z and SpeedFan of the voltages supplied to my system.
On the 12V line, it never seems to be 12V. For example, I just took some readings, and here they are:
CPU-Z:
1.22 Volts [0x4C] (CPU VCORE)
1.84 Volts [0x73] (VIN1)
3.34 Volts [0xD1] (+3.3V)
4.92 Volts [0xB7] (+5V)
0.64 Volts [0xA] (+12V)
-4.03 Volts [0x3F] (-5V)
5.05 Volts [0xBC] (+5V VCCH)
3.26 Volts [0xCC] (VBAT)
SpeedFan:
1.15V (Vcore1)
1.84V (Vcore2)
3.34V (+3.3V)
4.92V (+5V)
0.58V (+12V)
-16.67V (-12V)
-5.86 (-5V)
5.05V (+5V)
3.26V (Vbat)
As you can see, +12V line is reading only 0.64V, and the -12V line is at -16.67V!
I thought this might be the PSU, but I got an RMA on it, installed the new one, and I have exactly the same problem.
1. Am I correct in assuming that the 12V should be reading 12V at all times? Presumably the draw on it in Amps varies dependant on load, but the voltage should be constant?
2. What could cause this apart from the PSU? What is the motherboard involvement in power regulation?
3. Could any of you please run SpeedFan or similar and confirm if you are seeing 12V on the +/-12V lines?