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Problem description: One of my dad's Dell Inspiron 3650 started continually powering on and off just recently. No significant hardware or software changes either. Attempted fixes: Cleared BIOS, swapped power supplies, used a jumper to start the system, and replaced CMOS battery. Recent changes: Not that I'm aware of. -- Operating system: Windows 10 Home System specs: Dell Inspiron 3650 - Comes with an i3-6100, 8GB RAM, 1TB HDD, nothing too fancy. Location: USA I have Googled and read the FAQ: Yes At this point I'm thinking it's got to be the motherboard, but I was curious if any of you all had any other ideas. One thing I failed to try was swapping the memory module from another working machine. I will do that, but the fact that it's not even posting has me a little doubtful. Here's a YouTube clip if it helps: https://www.youtube.com/watch?v=B07DB_sEhS4 nitsuga fucked around with this message at 02:57 on Jul 3, 2019 |
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Jul 1, 2019 23:51
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I'd try disconnecting any HDs (and other drives) and see if it does anything differently.
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Jul 2, 2019 22:14
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That didn’t do it, but I pulled the one stick of RAM and now it’s staying powered on. I ordered some new stuff this morning, and hopefully that does it.
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Jul 4, 2019 02:48
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New RAM didn’t do it either. I tried all the combinations I could think of, but it still powers down as soon as it tries to access the disks. I can feel the disks get powered up and shortly after that it powers down. If there’s no disks it just powers down sooner. Any ideas?
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Jul 5, 2019 17:35
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What was the original (and replacement) PSU model and age?
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Jul 5, 2019 20:11
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It’s the original power supply now, but my dad has three of these at his office, so I pulled one from a working unit to test that theory. At any rate it’s coming up on three years of service, but it is some kind of proprietary format I think. Thanks for your help so far. 
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Jul 6, 2019 00:31
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nitsuga posted:It’s the original power supply now, but my dad has three of these at his office, so I pulled one from a working unit to test that theory. Done good so far! last thing to try is removing and reseating the cpu. even replacing it from a donor machine. sometimes that helps but be sure you replace the thermal paste. After that, it could need it's bios reprogrammed. Some dells have a way to recover the bios with a USB stick, most you have to remove the chip and flash it with a programmer though 
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Jul 7, 2019 18:54
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Thanks for that! I’m wondering if the BIOS might be the more likely problem here. I’ve got to head out of town for the week, but I’ll give it a try as soon as can.
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Jul 8, 2019 04:13
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No luck with the BIOS or CPU. Dell charges $40 for their diagnostics, so we opted to go for a new PC entirely. Thanks again for all the help.
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Jul 14, 2019 05:36
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