Huge problem with new PSU

[RVBVG2000]

So I replaced my Corsair VS650 with an RM750x, and after installing it, my PC won't power up, but it passes the paperclip test. I'm using:

mATX MSI B350M Gaming Pro/Plus

R5 1600

8Gigs HyperX 2400

Seagate Barracuda 1TB 7200RPM

ASUS Strix GTX 1080

TP Link 802.11/a/c PCI-E card.

Aforementioned PSU

Corsair Air 240

Stock cooler and fans.

All cables are properly plugged in and nothing changed around the Mobo 

 

This was my first build and it was running fine for 3 months with the VS650, and now, on the first day with the RM, it just doesn't work.

After the paperclip test, I plugged the 24pin back into my mobo, and for a fraction of a second, my fans spun up and Mobo lights lit up and then suddenly stopped. This happened without pressing the power button or shorting pins. Neither of which works, by the way. 

I no longer have the VS on hand, as I gave it to a friend as a present. Bad idea to do that before testing, I know.

 

Any help??

[♠FlamieMeister♠]

2 minutes ago, RVBVG2000 said:

So I replaced my Corsair VS650 with an RM750x, and after installing it, my PC won't power up, but it passes the paperclip test. I'm using:

mATX MSI B350M Gaming Pro/Plus

R5 1600

8Gigs HyperX 2400

Seagate Barracuda 1TB 7200RPM

Aforementioned PSU

Corsair Air 240

Stock cooler and fans. 

 

This was my first build and it was running fine for 3 months with the VS650, and now, on the first day with the RM, it just doesn't work.

After the paperclip test, I plugged the 24pin back into my mobo, and for a fraction of a second, my fans spun up and Mobo lights lit up and then suddenly stopped. This happened without pressing the power button or shorting pins. Neither of which works, by the way. 

I no longer have the VS on hand, as I gave it to a friend as a present. Bad idea to do that before testing, I know.

 

Any help??

It could possibly be the motherboard, I had an issue with my motherboard where it'd either not boot on at all or wouldn't detect my ssd. I sent the mobo in and I was all good afterwords. This happened about two years after i got my first psu for the system, so you could just have coincidentally had a motherboard failure and its not your psu's fault. RM's tend to be ok.

 

However it seems like it might be a psu problem. Corsair put on mine at least a thing called corsair link that you can use your laptop to test the psu with, and a button to test it on its own as well. Do you have either of those on the psu?

[Jurrunio]

Probably missed out some connectors, most likely the CPU power connector at the top. It could also be loose cables.

 

The worst you did was to give that crap to your friend. Corsair VS (old or new doesnt matter) has the track record of going pop and killing the rest of the system at random times.

[RVBVG2000]

3 minutes ago, ♠FlamieMeister♠ said:

It could possibly be the motherboard, I had an issue with my motherboard where it'd either not boot on at all or wouldn't detect my ssd. I sent the mobo in and I was all good afterwords. This happened about two years after i got my first psu for the system, so you could just have coincidentally had a motherboard failure and its not your psu's fault. RM's tend to be ok.

 

However it seems like it might be a psu problem. Corsair put on mine at least a thing called corsair link that you can use your laptop to test the psu with, and a button to test it on its own as well. Do you have either of those on the psu?

Those buttons are on RMi models only, as far as I know. I doubt this has anything to do with my mobo, as it was working fine before

 

[RVBVG2000]

1 minute ago, Jurrunio said:

Probably missed out some connectors, most likely the CPU power connector at the top. It could also be loose cables.

 

The worst you did was to give that crap to your friend. Corsair VS (old or new doesnt matter) has the track record of going pop and killing the rest of the system at random times.

Eh he's using it in a spare optiplex anyway.

No connectors were missed, all are tight. Double checked.

[RVBVG2000]

Plz help I'm concerned, this is a thousand bucks of hardware after all

[ckl_1981]

Hi, this issue I have faced before. Can you plug in another Psu and give it a run? Usually this is due to a faulty PSU which does pump out enough amp to power up the system. Can you borrow one from your friend?

[RVBVG2000]

9 minutes ago, ckl_1981 said:

Hi, this issue I have faced before. Can you plug in another Psu and give it a run? Usually this is due to a faulty PSU which does pump out enough amp to power up the system. Can you borrow one from your friend?

I'll see. I think that's the only way to test what's DOA. What was your solution? Could it be one of the cables that came with the PSU?

[ckl_1981]

Just now, RVBVG2000 said:

I'll see. I think that's the only way to test what's DOA. What was your solution? Could it be one of the cables that came with the PSU?

No no, borrow a PSU and fire up the PC cables has nothing to do with it, borrow 1 from your friend or an old 24 pin PSU and try , hope this helps maybe your PSU is DOA

[ckl_1981]

2 minutes ago, RVBVG2000 said:

I'll see. I think that's the only way to test what's DOA. What was your solution? Could it be one of the cables that came with the PSU?

Hard to say, could be the Capacitor or electronics inside. You need jonnyGuru here. I usually don't dissemble PSU like jonnyGURU. JonnyGURU is the best

[RVBVG2000]

2 minutes ago, ckl_1981 said:

Hard to say, could be the Capacitor or electronics inside. You need jonnyGuru here. I usually don't dissemble PSU like jonnyGURU. JonnyGURU is the best

I'm not going to disassemble anything. I'll check other parts with a borrowed PSU, and report back. It's odd since it passes the paperclip test so maybe there's a faulty wire that came with the PSU.

[ckl_1981]

Just now, RVBVG2000 said:

I'm not going to disassemble anything. I'll check other parts with a borrowed PSU, and report back. It's odd since it passes the paperclip test so maybe there's a faulty wire that came with the PSU.

Even my old AVF pass the paper clip test cause it does not produce load. You need to borrow one and try. Hope this helps

[ckl_1981]

4 minutes ago, RVBVG2000 said:

I'm not going to disassemble anything. I'll check other parts with a borrowed PSU, and report back. It's odd since it passes the paperclip test so maybe there's a faulty wire that came with the PSU.

Don't dissemble it if confirm its DOA send it for RMA.

[RVBVG2000]

Okay so occasionally when I turn the PSU off and on, it comes alive for a fraction of a second then stops again. Damnit.

[RVBVG2000]

4 minutes ago, ckl_1981 said:

Don't dissemble it if confirm its DOA send it for RMA.

Problem is that I'm unsure if it's the PSU cables that came with it (it's modular) or the PSU itself. Also, I live in acountry that Corsair doesn't do much in.

[ckl_1981]

Just now, RVBVG2000 said:

Problem is that I'm unsure if it's the PSU cables that came with it (it's modular) or the PSU itself. Also, I live in acountry that Corsair doesn't do much in.

No issues there, borrow 1 PSU and give it a try.

[RVBVG2000]

I'll try that. I'll report back tomorrow. 

[STRMfrmXMN]

1 hour ago, RVBVG2000 said:

So I replaced my Corsair VS650 with an RM750x, and after installing it, my PC won't power up, but it passes the paperclip test. I'm using:

mATX MSI B350M Gaming Pro/Plus

R5 1600

8Gigs HyperX 2400

Seagate Barracuda 1TB 7200RPM

ASUS Strix GTX 1080

TP Link 802.11/a/c PCI-E card.

Aforementioned PSU

Corsair Air 240

Stock cooler and fans.

All cables are properly plugged in and nothing changed around the Mobo 

 

This was my first build and it was running fine for 3 months with the VS650, and now, on the first day with the RM, it just doesn't work.

After the paperclip test, I plugged the 24pin back into my mobo, and for a fraction of a second, my fans spun up and Mobo lights lit up and then suddenly stopped. This happened without pressing the power button or shorting pins. Neither of which works, by the way. 

I no longer have the VS on hand, as I gave it to a friend as a present. Bad idea to do that before testing, I know.

 

Any help??

You may have killed the board in the process of removing your old PSU by stressing the PCB a lot when removing, say, the 24-pin cable.

 

Can you boot the system if you take all the hardware out and put it together on top of a cardboard box?

[Stefan Payne]

1 hour ago, RVBVG2000 said:

So I replaced my Corsair VS650 with an RM750x, and after installing it, my PC won't power up, but it passes the paperclip test.

First check if the PSU runs with another Board.

 

If it does, you can either replace the Board or the PSU, maybe/possibly even an RMA is fine....

 

I have the same with my Corsair HX750i and Gigabyte X79-UD5. It just doesn't work. 

Both are fine however. The HX750i works fine with every other Board.

And the Gigabyte Board works fine with many PSU I have here.

 

Just not the HX750i....

 

Happens sometimes for whatever reason...

[RVBVG2000]

18 hours ago, STRMfrmXMN said:

You may have killed the board in the process of removing your old PSU by stressing the PCB a lot when removing, say, the 24-pin cable.

 

Can you boot the system if you take all the hardware out and put it together on top of a cardboard box?

I doubt I killed it. A 24 pin doesn't create that much stress. I'll try breadboarding and report back

[RVBVG2000]

Alright guys, over the weekend, I'll borrow a modular PSU that's confirmed to work with from my friend, breadboard, test everything, and report back.

[STRMfrmXMN]

4 hours ago, RVBVG2000 said:

I doubt I killed it. A 24 pin doesn't create that much stress. I'll try breadboarding and report back

@iamdarkyoshifound that the cables in my case put enough stress on a board I killed that I gave to him. I'm guessing this is because I lacked the proper number of motherboard standoffs.

 

Just ticking boxes. It's definitely possible.

[Corsair Nick]

Sure way would be to try another confirmed working condition PSU and set of cables in place of the RM750x.  Even though it is fully modular, do not reuse the cables unless it's the same type of PSU (another Corsair RMx or RMi).

 

FWIW, you may want to check your CPU install and make sure it's seated properly and none of the pins are bent.  I ran into someone's build that acted like this and pins were bent once before.

[Guest]

On 12/11/2017 at 8:25 AM, RVBVG2000 said:

Problem is that I'm unsure if it's the PSU cables that came with it (it's modular) or the PSU itself. Also, I live in acountry that Corsair doesn't do much in.

Plug ONLY the 24-pin into the motherboard.  Unplug everything else from the motherboard; including cards (like graphics card), memory, cables (power, SATA, USB, etc.) so all you have is a motherboard, CPU, CPU cooler and a 24-pin cable.  Now power it up.  Does it power up?

 

[andrewmp6]

And make sure the cables on both ends are fully plugged in.Try pulling on them a little if they are not fully seated it will pull out and not work if not fully seated.