mugglesby Posted August 23, 2023 Report Share Posted August 23, 2023 I think this is just a "replace the power supply" issue (DPSN-96DP), but I'd appreciate anyone's insight if they have advice: (Video of issue) https://imgur.com/INZWEUK Summary -- push power, no LED ring lights, X3 mod chip front indicator panel briefly lights up, then turns off. Eject button has same result. Case fan briefly twitches when power/eject is pressed. Continuously holding the power button 'on' keeps the lights on the X3 front panel lit, and the hard drive can be heard spinning up, but then nothing appears and it powers back off after release. Removed the motherboard, examined the traces to see if there was any rot -- looks really, really clean, nothing was visible after several minutes of inspecting. (Shot of a section of board) https://imgur.com/HIuVLGm CPU capacitors look a little sussy and puffed, I should replace, but nothing leaking onto the board. Clock capacitor looks good, too, but I think I should replace that as well. (CPU caps) https://imgur.com/NR7H58m (Clock cap) https://imgur.com/pFDgFPA Probably will get capacitors from Console5, I have enjoyed ordering from them before. Should I just replace the power supply? Is that what this issue looks like? https://imgur.com/FVbfgB6 (Delta power supply) Thanks anyone that feels like replying! This is my daily driver, I'd like to have it back! Quote Link to comment Share on other sites More sharing options...
KaosEngineer Posted August 23, 2023 Report Share Posted August 23, 2023 Replace all 5 of the 3300 microFarad 6.3Vdc low ESR caps by the CPU heatsink and power supply connector. 1 Quote Link to comment Share on other sites More sharing options...
mugglesby Posted August 24, 2023 Author Report Share Posted August 24, 2023 On 8/22/2023 at 10:10 PM, KaosEngineer said: Replace all 5 of the 3300 microFarad 6.3Vdc low ESR caps by the CPU heatsink and power supply connector. Right on, thank you, I appreciate the reply! I will order up a cap replacement set from Console5 or similar — this doesn’t read like a total PSU failure to you, then? Maybe because some power appears to be traveling, as evidenced by the X3 mod chip front panel and the hard drive being heard to spin up? Thanks again! Quote Link to comment Share on other sites More sharing options...
Marty Posted August 24, 2023 Report Share Posted August 24, 2023 39 minutes ago, mugglesby said: this doesn’t read like a total PSU failure to you, then? This is very typical of "bad caps". Swap them out and you'll be fine. Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted August 24, 2023 Report Share Posted August 24, 2023 5 hours ago, Marty said: This is very typical of "bad caps". Swap them out and you'll be fine. It's certainly not a BAD idea to do so at all. but the jury is still out on whether or not he will be "fine." Quote Link to comment Share on other sites More sharing options...
mugglesby Posted August 24, 2023 Author Report Share Posted August 24, 2023 Thanks, everyone! Caps seem a good place to start, especially considering how the ones near the CPU heatsink appear. Cheaper than a power supply, and can always do the PSU next if that doesn't work. Ordered up the caps from Console5, and I will replace the heatsink paste, clock cap, and do some general cleanup while I am in there. Maybe add the SSD that I always meant to do. I'll update once repaired! Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted August 24, 2023 Report Share Posted August 24, 2023 31 minutes ago, mugglesby said: Thanks, everyone! Caps seem a good place to start, especially considering how the ones near the CPU heatsink appear. Cheaper than a power supply, and can always do the PSU next if that doesn't work. Ordered up the caps from Console5, and I will replace the heatsink paste, clock cap, and do some general cleanup while I am in there. Maybe add the SSD that I always meant to do. I'll update once repaired! Old caps, especially on the PSU and big ones that handle high power are always good to replace and are a cheap place to start! Quote Link to comment Share on other sites More sharing options...
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