Computer not posting (Not Solved) | Linus Tech Tips | Page 1

prime sleet Aug 25, 2024, 1:53 AM

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Did you look and the manual and used the front panel diagram as reference ? you probably got the negative and positive mixed up

naive karma Aug 25, 2024, 1:59 AM

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Yes I did, both the old and new. They are right where they should be

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Here’s the diagram for the new mobo

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And the one for the old mobo

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If I got the negative and positive mixed up, I would end up with a crushed positive Power LED pin

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@prime sleet

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Front Panel Connectors and Power (Not Solved)

prime sleet Aug 25, 2024, 2:07 AM

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Have you tried manually turning the pc on by using a screw driver ? To see if the system even turns on ?

naive karma Aug 25, 2024, 2:10 AM

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Didn't know that was a thing I can try...Tried it and it did not turn on. I have a feeling I know what the offending part is

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Unlike with my last mobo I tried using an angle adapter for the 24 pin cable

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Will try taking that out

prime sleet Aug 25, 2024, 2:16 AM

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Hope everything turns out good if not I have a psu 500 watts for sale 😉

naive karma Aug 25, 2024, 2:16 AM

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My power supply is new, should be fine

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I also noticed when I try to press the power butting on the case that the back fan briefly turns on

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Then stops

prime sleet Aug 25, 2024, 2:17 AM

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It’s weird how it ain’t turning on

naive karma Aug 25, 2024, 2:22 AM

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Only reason I went through all this in the first place is because one day after work I tried turning on the computer and while it was turning on, HDMI wasn't detecting. Through some arduous troubleshooting I found out that monitor was not working anymore, and even when I got a new monitor that I confirmed worked with my laptop, it would not detect an HDMI signal from the computer

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I swapped out the GPU with one I knew worked, it still didn't detect HDMI

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Which meant the old power supply had gone bad without exhibiting any obvious sound based symptoms, or smells

prime sleet Aug 25, 2024, 2:25 AM

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But I mean the computer wouldn’t of even turned on right that’s a symptom as well

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That it’s not powering on

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Is that what you mean

naive karma Aug 25, 2024, 2:25 AM

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It was

prime sleet Aug 25, 2024, 2:26 AM

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Oh I see so the graphics card was bad ?

naive karma Aug 25, 2024, 2:26 AM

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It's not turning on now probably because of the angle adapter

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And no I ruled that out

prime sleet Aug 25, 2024, 2:26 AM

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Okay I’ve never used an angle adapter before

naive karma Aug 25, 2024, 2:27 AM

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rn_image_picker_lib_temp_8909809d-f6f9-4ef0-87f3-6f3292957c68.jpg

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Seeing though that it doesn't seem to be flush, doesn't look like this fricken thing was soldered right

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Anyway, I have the 24 pin connected directly to the mobo now

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I also have a new mobo in my computer just in case that contributed to the cause

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...It still doesn't turn on

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A few fans briefly start running but then, nothing

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Ok, next is to try the RAM

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It can't be a blown PSU since this is a brand new one

naive karma Aug 25, 2024, 3:11 AM

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Reseating the ram didn't help

naive karma Aug 25, 2024, 3:40 AM

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Guess maybe one of the sticks is bad

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Will have to try taking them out one at a time and see which one

naive karma Aug 25, 2024, 1:20 PM

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I tried replacing the ram sticks to see if that would fix things, it did not

#Computer not posting (Not Solved)