XB84 Posted May 15, 2022 Report Share Posted May 15, 2022 Hi all, I have a 1.1 motherboard that is dead, I know it's not the psu as I have another 1.1 and it works in that console. Basically I was trying to add LEDs to my case which needs a 12v source. I used a Y splitter on the molex connect for the HDD, it worked for a few mins then the console died and now won't power on? I have replaced the 5 caps near the psu connector aswell. Thanks Quote Link to comment Share on other sites More sharing options...
big F Posted May 15, 2022 Report Share Posted May 15, 2022 Could be so many things. Is it bios modded or standard. Could be a broken track or two. A bad solder joint. Crappy mod chip install. if you could give us some more details we might be able to help. A high quality phot of the board might also help us. Quote Link to comment Share on other sites More sharing options...
XB84 Posted May 15, 2022 Author Report Share Posted May 15, 2022 Thanks, it has been tsop flashed. After reading some previous posts on the forum I have tested for continuity and voltages from the pic chip and the front board connector, and all is ok. I have also checked for trace rot, can't see any? If it helps when I press the power button it makes a single click and the yellow led in the lan port flashes once? I will take some pictures of the boa Quote Link to comment Share on other sites More sharing options...
big F Posted May 16, 2022 Report Share Posted May 16, 2022 A simple check would be to make sure the switch pcb is ok, I had one a while back that was iffy on the connector. after that it may get a bit more involved as it could be one of the regulators or the chip that controls the PWON feature. Quote Link to comment Share on other sites More sharing options...
XB84 Posted May 18, 2022 Author Report Share Posted May 18, 2022 Thanks, if anyone has this problem mine turned out to be a bad MOSFET. New mosfet good as new 2 1 Quote Link to comment Share on other sites More sharing options...
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