[SOLVED] Corsair RM650 Gold pin voltages

[TomD3]

My computer won’t load BIOS. Before doing anything else I want to check the voltages on every pin of the power supply. Does anyone have a ’map’ or a link to a source where I can get those details?

 

[Ralston18]

Something like the following link?

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

And you can purchase dedicated devices.

Google words/phrasing such as "computer power supply testers".

For voltages, colors, pins, google "computer power supply pinouts" - look for images.

 

[jonnyguru]

My computer won’t load BIOS.

You mean it powers up, but doesn't post?

Is this a new build?

Did you try to post with just the bare essentials?

 

[TomD3]

Something like the following link?

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

And you can purchase dedicated devices.

Google words/phrasing such as "computer power supply testers".

For voltages, colors, pins, google "computer power supply pinouts" - look for images.

Thanks for that link. But it’s not exactly what I’m looking for. The article listed all the voltages a power supply is expected to produce. What I’m looking for is what voltage is appropriate at each pin. The article specifies what is appropriate for a red wire (for example), but my PSU is modular... no wires coming from it, so I need to stick a test probe into each pin . But thanks.

 

[Zerk2012]

Thanks for that link. But it’s not exactly what I’m looking for. The article listed all the voltages a power supply is expected to produce. What I’m looking for is what voltage is appropriate at each pin. The article specifies what is appropriate for a red wire (for example), but my PSU is modular... no wires coming from it, so I need to stick a test probe into each pin . But thanks.

Might hook the cables to it and use the same guide?

 

[TomD3]

You mean it powers up, but doesn't post?

Is this a new build?

Did you try to post with just the bare essentials?

Yes, it powers up but doesn’t post. Yes, it’s a new build (my first). No, I didn’t try to post with only the bare essentials.

I believe it’s a heat problem. My next step is to remove the CPU fan and reapply the thermal grease (after removing the existing grease). My fear is that this might have burned out the CPU (Ryzen 5 3600). If it still doesn’t post, is there a good way to confirm whether the CPU is good or not, short of buying a new one and plugging it in?

 

[TomD3]

Might hook the cables to it and use the same guide?

Nice idea, I hadn’t thought of that. Unfortunately I don’t have cables to do that. Mine are all wrapped in a black plastic mesh-like covering with no individual wires visible.

 

[Ralston18]

Seconding @Zerk2012

Each pin: Google "PSU connector pin voltages" or use similar words and phrasing. Filter down to images may help find other diagrams.

There are standards but watch for potential differences (proprietary) changes.

Pinouts: EXAMPLES

https://www.smps.us/power-connectors.html

https://www.lifewire.com/atx-24-pin-12v-power-supply-pinout-2624578

Just ensure that you use the pinout diagram applicable to your system.

 

[TomD3]

Seconding @Zerk2012

Each pin: Google "PSU connector pin voltages" or use similar words and phrasing. Filter down to images may help find other diagrams.

There are standards but watch for potential differences (proprietary) changes.

Pinouts: EXAMPLES

https://www.smps.us/power-connectors.html

https://www.lifewire.com/atx-24-pin-12v-power-supply-pinout-2624578

Just ensure that you use the pinout diagram applicable to your system.

Thanks! That’s exactly what I was looking for.

 

[Zerk2012]

Nice idea, I hadn’t thought of that. Unfortunately I don’t have cables to do that. Mine are all wrapped in a black plastic mesh-like covering with no individual wires visible.

Ya you don't need wire colors just start with pin 1.
On a side note for a PC not powering on that would be way down my list.

I would short the power pins on the board first.
Then do the PSU paperclip test.
From their breadboard the system.

 

[jonnyguru]

Yes, it powers up but doesn’t post.

I would short the power pins on the board first.
Then do the PSU paperclip test.
From their breadboard the system.

Let's not lead the OP down a rabbit hole he doesn't need to go down. The PC powers up. It just doesn't post. No need to test voltages. Just need to do some troubleshooting 101.