Question PC turns on for a split second then shuts off ?

[Maverick1234]

Hello, so I just got a new used gpu and when I was using it earlier it was doing foine. Now here's the problem, after running a benchmark earlier using furmark using the quick 1080p benchmark it was doing fine. Temperature peaked at 70°C and I'm pretty sure those numbers are not alarming.

Then I did another benchmark which is I think the stressed test one and I left it for about 5 mins. I came back to find out that my pc has turned off and doesn't even want to power on anymore.

Specs
Mobo: Gigabyte A520M
CPU: Ryzen 5 5500
GPU: Gigabyte RX 5700 XT
RAM: 8GB x 2
Storage: 1 x 240GB SSD, 1 x 1TB HDD, 1 x 1TB NVMe SSD
PSU: Corsair CX550 550w

I asked here already before getting the gpu if my psu would be sufficient for my system and especially for the gpu. They said yes so I got that gpu.

Note:
When the gpu is connected to the mobo with the 8pin and 6pin, the pc won't power on. But when none of the pcie pins are connected to the gpu while the gpu is inserted to the pcie 16 slot, my system powers on and the gpu's debug lights lit and the gpu's rgb turns on. Same thing goes when only the 6pin is connected, the system powers on. But when the 8pin is connected and not the 6pin one, it doesn't power on.

My pc also powers on when the gpu is not connected to the mobo and none of the pcie as well.

When I checked on the gpu, it kinda smelled like burnt plastic.

 

[sammy9417]

its ur psu u need minuim of 600w psu for that gpu

 

[Maverick1234]

its ur psu u need minuim of 600w psu for that gpu

I've asked before in discord buildapc that my 550w psu should be able to handle my rx 5700 xt. Plus, I was able to power on my system using that psu before all of this happened.

 

[sammy9417]

yeah as soon u put a load on that psu ur pc will freeze and lockup i would really remmond a bigger psu it will run fine now but but under stress it will shutdown due psu

 

[RAIDGoblin]

When I checked on the gpu, it kinda smelled like burnt plastic

non usually a great sign, have you inspected the card for any signs of damage? or shorts with the case/surrounding wires? I would say check the power plugs for any sign of melting too (pay particular attention to the 8 pin plug that seems to be giving you your fault), but you have the old style connectors so that is unlikely

That cuts out so fast, barely after power comes on, if it was because the PSU couldn't handle the current, the difference between 550 and 600 isn't that big, it wouldn't cut out until the GPU was under some load, not when the mobo has barely even started trying to output a splash screen

This seems more typical of a short someplace in the GPU or fault in the PSU, the PSU is cutting out either because something on the GPU power circuit is faulty, or because it's safety systems are kicking in to protect it from a fault in the GPU

if you can't see anything wrong with the 8 pin plug on your PSU, do you have a different GPU to see if it will work with that?

 

[Maverick1234]

non usually a great sign, have you inspected the card for any signs of damage? or shorts with the case/surrounding wires? I would say check the power plugs for any sign of melting too, but you have the old style connectors so that is unlikely

That cuts out so fast, barely after power comes on, if it was because the PSU couldn't handle the current, the difference between 550 and 600 isn't that big, it wouldn't cut out until the GPU was under some load, not when the mobo has barely even started trying to output a splash screen

This seems more typical of a short someplace in the GPU or fault in the PSU, the PSU is cutting out either because something on the GPU power circuit is faulty, or because it's safety systems are kicking in to protect it from a fault in the GPU

Do you have a different GPU to see if it will work with that?

No, I currently don't have a spare gpu as I have sold my old one already sadly. But, I'll try to go to my friends house maybe tomorrow to rule out if it is the gpu that's the problem. If it is, then I'll have to return it.

My system was also running before I did a benchmark on my gpu. Since it was new I wanted to check out if it will work ok with my system.

The last thing I want is a shot gpu.

 

[Maverick1234]

non usually a great sign, have you inspected the card for any signs of damage? or shorts with the case/surrounding wires? I would say check the power plugs for any sign of melting too (pay particular attention to the 8 pin plug that seems to be giving you your fault), but you have the old style connectors so that is unlikely

That cuts out so fast, barely after power comes on, if it was because the PSU couldn't handle the current, the difference between 550 and 600 isn't that big, it wouldn't cut out until the GPU was under some load, not when the mobo has barely even started trying to output a splash screen

This seems more typical of a short someplace in the GPU or fault in the PSU, the PSU is cutting out either because something on the GPU power circuit is faulty, or because it's safety systems are kicking in to protect it from a fault in the GPU

if you can't see anything wrong with the 8 pin plug on your PSU, do you have a different GPU to see if it will work with that?

I also checked for anything burning such as wires, the pcb, and the 8pin and 6pin and the socket itself. There's nothing out of the ordinary and no sign of burning. All the wires are intact and where they should be.

 

[RAIDGoblin]

No, I currently don't have a spare gpu as I have sold my old one already sadly. But, I'll try to go to my friends house maybe tomorrow to rule out if it is the gpu that's the problem. If it is, then I'll have to return it.

My system was also running before I did a benchmark on my gpu. Since it was new I wanted to check out if it will work ok with my system.

The last thing I want is a shot gpu.

putting a system under load will heat everything up and put the PSU under load, this will increase risk of causing faults in both PSU and GPU

unfortunately this is the risk of buying used, if you don't know the GPU's history it could have had a known fault already, or have been maxed out 24/7 in a mining rig

I also checked for anything burning such as wires, the pcb, and the 8pin and 6pin and the socket itself. There's nothing out of the ordinary and no sign of burning. All the wires are intact and where they should be.

shine a good torch down the holes in the socket and make sure nothing looks out of the ordinary with the pins/holes, use a magnifying glass if needed, the last thing you want is to damage your friends gpu testing it in a system that could have a short in the plug on the PSU

I would say try your GPU with a different known working PSU first, but either way is a risk, paring a faulty GPU with a PSU with a less good safety cut out could result in damaging the different PSU

if you or your friend have an older GPU that you're not using that would be a safer test

 

[RAIDGoblin]

that said, if you can prove the fault is with your new used GPU, depending on how honest the seller is/where you bought it, you might be able to get a refund?

 

[Maverick1234]

that said, if you can prove the fault is with your new used GPU, depending on how honest the seller is/where you bought it, you might be able to get a refund?

I've already talked to them about the issue I'm facing with the card and they told me they can replace it with a Rx 6600. But I said I'd prefer a refund bc I don't rlly like that gpu bc it's lacking the performance I want. But they did agree on a refund if ever.

 

[Maverick1234]

putting a system under load will heat everything up and put the PSU under load, this will increase risk of causing faults in both PSU and GPU

unfortunately this is the risk of buying used, if you don't know the GPU's history it could have had a known fault already, or have been maxed out 24/7 in a mining rig


shine a good torch down the holes in the socket and make sure nothing looks out of the ordinary with the pins/holes, use a magnifying glass if needed, the last thing you want is to damage your friends gpu testing it in a system that could have a short in the plug on the PSU

I would say try your GPU with a different known working PSU first, but either way is a risk, paring a faulty GPU with a PSU with a less good safety cut out could result in damaging the different PSU

if you or your friend have an older GPU that you're not using that would be a safer test

Yeah that's what I meant. I'm gonna try out my gpu in my friends rig and see if it will work or not. He's got a 1350w psu and I'm guessing it has good power security that will prevent it from getting shorted out or other stuff that might happen.

I've checked already in the pin sockets (8pin and 6pin) and they both look fine. Nothing looks burnt. Same goes from the psu's 8pin and 6pin they seem alright. Nothing looks burn. I wanted to remove the back plate but that might void the sellers 1 month warranty.

 

[RAIDGoblin]

I've already talked to them about the issue I'm facing with the card and they told me they can replace it with a Rx 6600. But I said I'd prefer a refund bc I don't rlly like that gpu bc it's lacking the performance I want. But they did agree on a refund if ever.

I guess it's up to you to decide what to do about it, if the seller will offer you a refund you'll still be stuck with the problem of not knowing if the problem is with your PSU or not

Yeah that's what I meant. I'm gonna try out my gpu in my friends rig and see if it will work or not. He's got a 1350w psu and I'm guessing it has good power security that will prevent it from getting shorted out or other stuff that might happen.

I've checked already in the pin sockets (8pin and 6pin) and they both look fine. Nothing looks burnt. Same goes from the psu's 8pin and 6pin they seem alright. Nothing looks burn. I wanted to remove the back plate but that might void the sellers 1 month warranty.

if you know a good PC repair shop you could always take the PC in and ask them to test you PSU, just to be on the safe side, PC shops usually have a whole lot of spare tec that they don't mind using to test suspect components. There's no real way of proving it without further testing but my hunch is that the problem is with the GPU

What make is your friends PSU? and if you do try that make sure your friend is aware of potential risks

good luck solving this, let me know what you find

 

[Maverick1234]

I guess it's up to you to decide what to do about it, if the seller will offer you a refund you'll still be stuck with the problem of not knowing if the problem is with your PSU or not

I mean I wouldn't be able to play on this gpu as well if that quick benchmark did possibly cooked my gpu. So maybe it's best that I get a refund and get the psu tested out.

if you know a good PC repair shop you could always take the PC in and ask them to test you PSU, just to be on the safe side, PC shops usually have a whole lot of spare tec that they don't mind using to test suspect components. There's no real way of proving it without further testing but my hunch is that the problem is with the GPU

What make is your friends PSU? and if you do try that make sure your friend is aware of potential risks

good luck solving this, let me know what you find

The last thing I really want is to go to a pc repair shop and seek for help. Because in my country, they rip off their customers and charge for absurd amount of money. That's why I really try my best to troubleshoot on my own. But this is the first time I've faced this kind of issue.

 

[RAIDGoblin]

I mean I wouldn't be able to play on this gpu as well if that quick benchmark did possibly cooked my gpu. So maybe it's best that I get a refund and get the psu tested out.

yeah, definitely best to find a problem soon enough to get a refund, instead of just after your month has expired

The last thing I really want is to go to a pc repair shop and seek for help. Because in my country, they rip off their customers and charge for absurd amount of money. That's why I really try my best to troubleshoot on my own. But this is the first time I've faced this kind of issue.

that is a fair point, I guess I'm lucky to have a small independent PC repair shop quite close to me, yes he charges higher than usual market rates for components because a private shop can't compete commercial online suppliers, but he also doesn't mind troubleshooting for people, and he doesn't charge for his time if he can't find what's wrong