So I recently got an ASUS P4V8X-X that will not POST.
Further checks showed 12v connector a bit burnt on the 12v pins (GND were fine) so I replaced it. I should mention the CPU it came with was a 2.4GHz Pentium 4 Prescott (as opposed to Northwood like I used to always score)
The motherboard will power up but will not POST at all. After a few seconds the mosfets near the CPU and the whole VRM will get very very hot.
The CPU will heat up, and was tested good on another motherboard (along with a lot of other Socket 478 CPUs so as to rule out any dead CPU - all of them POSTed without problems - motherboard used was a Gigabyte 8IPE1000-G)
So any ideas what I can try? I replaced every cap (regardless of brand - they were all dry it seems) with OST RLX (06 datecode,the dried up ones were from 2004),Rubycon MBZ for VRM low and KZE for VRM high.
Should I try replacing the VRM mosfets? They're 06N03LA and 60T03H respectively, and I can find equivalents I can solder in there.
Further checks showed 12v connector a bit burnt on the 12v pins (GND were fine) so I replaced it. I should mention the CPU it came with was a 2.4GHz Pentium 4 Prescott (as opposed to Northwood like I used to always score)
The motherboard will power up but will not POST at all. After a few seconds the mosfets near the CPU and the whole VRM will get very very hot.
The CPU will heat up, and was tested good on another motherboard (along with a lot of other Socket 478 CPUs so as to rule out any dead CPU - all of them POSTed without problems - motherboard used was a Gigabyte 8IPE1000-G)
So any ideas what I can try? I replaced every cap (regardless of brand - they were all dry it seems) with OST RLX (06 datecode,the dried up ones were from 2004),Rubycon MBZ for VRM low and KZE for VRM high.
Should I try replacing the VRM mosfets? They're 06N03LA and 60T03H respectively, and I can find equivalents I can solder in there.
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