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So you just had
And it would not power on with Cooler Master 550W, but it worked OK with Antec 620w PSU. Was all cables plugged into the motherboard?
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03-29-2015, 12:49 PM
(This post was last modified: 03-29-2015, 12:51 PM by 64z.)
Hi Brian, yes that's correct, I ONLY had the 24 pin and the 4/8 CPU pin connected off from the PSU and was using on board video, the last time I had both boards out of the case side by side on my bench. One more thing to note, when I switched the power on to the new PSU with an led system fan connected, it flashed on very briefly but didn't seem to spin, I don't know if that's any help.....
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03-29-2015, 12:54 PM
(This post was last modified: 03-29-2015, 12:55 PM by Britec.)
I have experienced this myself when using APU and Intel GPU on the CPU chip. I got dead motherboard.
I put in a cheap graphics card and fired right up, I then selected to use graphics on the chip, then I removed card and it fired up just fine without graphics card.
Its all very strange, not sure if that's happening to you.
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Hmmm that's strange, I will try a new graphics cars, I'm also going to try another cooler master power supply when I get hold of one just in case it is a bad one, it's strange that it all works by swapping the board with another one but I will post back when I have the result
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03-29-2015, 03:17 PM
(This post was last modified: 03-29-2015, 03:17 PM by Timster.)
Sounds like your chasing ghosts. When a power supply fails no telling how it went out and what else it does to components that are plugged into it. Sounds like when that psu let go it may have had some effect on that board. All bets are off when that happens.
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Ok, an update, I have tested with another brand new PSU of the same make and model cooler master G550M and still the same fault, works fine with corsair 500 and another antec 550 so I'm now sure it's the board at fault and some kind of protection kicking in. I will run it on the corsair and hope for the best, at least I can send it back and ask it to be tested with the cooler master if needed.
