Hi there,
I've got this motherboard, it's from a Fujitsu Li3710, Penryn CPU. It powers on for approx 5 secs then turns off. I don't appear to be getting any output to a pci BIOS diagnostic card, so I am assuming it might not be getting to the stage of BIOS boot.
Anyway, I put a voltmeter to the coil PL12 near the CPU, this is supposed to be the output for VCC CORE (CPU core voltage), it seems to be fluctuating wildly. The processor die gets warm, but then of course the board powers off quickly with no further progress.
(Core voltage is managed by an ISL6262)
My basic question is, what is acceptable fluctuation for CPU core voltage? Also, I only tried with a digital meter. Will see if I can dig out an analog meter if that gives any greater insight.
I've got this motherboard, it's from a Fujitsu Li3710, Penryn CPU. It powers on for approx 5 secs then turns off. I don't appear to be getting any output to a pci BIOS diagnostic card, so I am assuming it might not be getting to the stage of BIOS boot.
Anyway, I put a voltmeter to the coil PL12 near the CPU, this is supposed to be the output for VCC CORE (CPU core voltage), it seems to be fluctuating wildly. The processor die gets warm, but then of course the board powers off quickly with no further progress.
(Core voltage is managed by an ISL6262)
My basic question is, what is acceptable fluctuation for CPU core voltage? Also, I only tried with a digital meter. Will see if I can dig out an analog meter if that gives any greater insight.
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