Pc not starting after installing new cpu.

[Eeevaporated]

I recently purchased a Ryzen 5 3600 off eBay as an upgrade to my current cpu, a Ryzen 5 1600. The cpu arrived today, and I took apart my pc to install it. I was careful, and I made sure not to let any static build up. On initial test the pc did not boot. I tried reseating everything, I tried the cmos battery, and eventually gave up. What’s interesting is that my motherboard lights turn on, but pressing either the power button on my case or my motherboard does nothing. I decided to try putting my old cpu back in but to my horror, my pc won’t boot with that cpu either. I gave it some though and it could be that the eps cable or the motherboard input broke during the process of taking apart the pc. I was unable to get the eps cable out because my fingers were too large and aren’t dexterous enough, so I had my sister take it out who has smaller fingers, but also no knowledge of computers. The cable and motherboard look fine but I know that looks aren’t everything when it comes to broken components. Any help is greatly apreciated.

specs are 

motherboard: asus prime b450m a ii

cpu: Ryzen 5 1600/ 3600

ram: Xpower turbine 16gb ddr4

gpu: xfx 5700xt raw ii

psu: thermaltake smart 500

ssd: Kingston nv2 1tb

case: cooler master master box q300l

 

after doing the paper clip test I believe that my pay failed. When I purchased it was ranked at tier c on the tier list, however it is now ranked at tier f. I will be buying a much better power supply. Thank you to all those who have helped me.

[191x7]

Check the new(ish) CPU for bent pins.

 

Use the 1600 and update your motherboard Bios to the latest. Then try the new CPU.

[MadAnt250]

16 minutes ago, Eeevaporated said:

I recently purchased a Ryzen 5 3600 off eBay as an upgrade to my current cpu, a Ryzen 5 1600. The cpu arrived today, and I took apart my pc to install it. I was careful, and I made sure not to let any static build up. On initial test the pc did not boot. I tried reseating everything, I tried the cmos battery, and eventually gave up. What’s interesting is that my motherboard lights turn on, but pressing either the power button on my case or my motherboard does nothing. I decided to try putting my old cpu back in but to my horror, my pc won’t boot with that cpu either. I gave it some though and it could be that the eps cable or the motherboard input broke during the process of taking apart the pc. I was unable to get the eps cable out because my fingers were too large and aren’t dexterous enough, so I had my sister take it out who has smaller fingers, but also no knowledge of computers. The cable and motherboard look fine but I know that looks aren’t everything when it comes to broken components. Any help is greatly apreciated.

specs are 

motherboard: asus prime b450m a ii

cpu: Ryzen 5 1600/ 3600

ram: Xpower turbine 16gb ddr4

gpu: xfx 5700xt raw ii

psu: thermaltake smart 500

ssd: Kingston nv2 1tb

case: cooler master master box q300l

Did you update the bios?

Did you pull the cmos battery for at least one minute?

[Eeevaporated]

3 minutes ago, 191x7 said:

Check the new(ish) CPU for bent pins.

 

Use the 1600 and update your motherboard Bios to the latest. Then try the new CPU.

Neither cpu has bent pins, and the pc won’t startup anymore with either.

[Eeevaporated]

2 minutes ago, MadAnt250 said:

Did you update the bios?

Did you pull the cmos battery for at least one minute?

At this point I can’t update the bios as the pc won’t start at all. I did not update beforehand because from the research I had done it would be fine to just see if the cpu was working without the bios update. I took the cmos battery out for a minute.

[191x7]

11 minutes ago, Eeevaporated said:

At this point I can’t update the bios as the pc won’t start at all. I did not update beforehand because from the research I had done it would be fine to just see if the cpu was working without the bios update. I took the cmos battery out for a minute.

Taking the battery out for a minute isn't enough. Clear the CMOS (resetting the bios) usually takes a few minutes to be sure.

 

Check if you have everything connected properly, especially the EPS power (CPU 12V) and the 24-pin, check if your front panel power button is properly connected to the motherboard...

[MadAnt250]

5 minutes ago, Eeevaporated said:

At this point I can’t update the bios as the pc won’t start at all. I did not update beforehand because from the research I had done it would be fine to just see if the cpu was working without the bios update. I took the cmos battery out for a minute.

Check over your connections again, see if you missed anything. Clear the CMOS, the put the 1600 back in. Depending on the motherboard it may take some time to start up and may cycle on and off a few times. If nothing happens remove one RAM stick and try starting the pc up again.

 

Also if you have diagnostic debug lights on the motherboard, count the flashes and look up the code in the manual.

[Eeevaporated]

1 hour ago, 191x7 said:

Taking the battery out for a minute isn't enough. Clear the CMOS (resetting the bios) usually takes a few minutes to be sure.

 

Check if you have everything connected properly, especially the EPS power (CPU 12V) and the 24-pin, check if your front panel power button is properly connected to the motherboard...

I took out the cmos for 10 min and have reseated all cable connections, still not turning on.

[191x7]

4 minutes ago, Eeevaporated said:

I took out the cmos for 10 min and have reseated all cable connections, still not turning on.

Can you use the paperclip method to test the PSU?

[Eeevaporated]

8 minutes ago, 191x7 said:

Can you use the paperclip method to test the PSU?

Do I need a modular psu for this? My psu is not modular.

[191x7]

2 minutes ago, Eeevaporated said:

Do I need a modular psu for this? My psu is not modular.

No. Just disconnect the PSU from everything except maybe a fan, and test it.

 

 

[Eeevaporated]

30 minutes ago, 191x7 said:

No. Just disconnect the PSU from everything except maybe a fan, and test it.

 

 

I tried it and my psu didn’t start. I would find it being a psu failure strange because my motherboard does light up and just before switching out the cpu the psu was working fine. Would a psu failure be definite since it didn’t turn on?

[191x7]

4 minutes ago, Eeevaporated said:

I tried it and my psu didn’t start. I would find it being a psu failure strange because my motherboard does light up and just before switching out the cpu the psu was working fine. Would a psu failure be definite since it didn’t turn on?

If you did it correctly, probably.

[Eeevaporated]

2 hours ago, 191x7 said:

If you did it correctly, probably.

I’m curious as to what would have caused my power supply to fail, it was working fine 20 minutes before and the motherboard lights turn on when I plug the psu in. Do you have any idea why this could be?

[191x7]

4 hours ago, Eeevaporated said:

I’m curious as to what would have caused my power supply to fail, it was working fine 20 minutes before and the motherboard lights turn on when I plug the psu in. Do you have any idea why this could be?

To find that out you'd need a multimeter or a good PSU tester with voltage readouts (a screen instead if LED-s).

 

Do you have a working PSU you could test the system with?

[Eeevaporated]

10 hours ago, 191x7 said:

To find that out you'd need a multimeter or a good PSU tester with voltage readouts (a screen instead if LED-s).

 

Do you have a working PSU you could test the system with?

Not currently but when I get paid I can buy another, my psu is also still in warranty.

[191x7]

7 minutes ago, Eeevaporated said:

Not currently but when I get paid I can buy another, my psu is also still in warranty.

Can you get a psu tester? Those are only a few $ and might help you in this situation.

[191x7]

On 8/10/2024 at 8:36 PM, Eeevaporated said:

Not currently but when I get paid I can buy another, my psu is also still in warranty.

Are you going to RMA the PSU?

[Eeevaporated]

9 minutes ago, 191x7 said:

Are you going to RMA the PSU?

Probably not, as I mentioned in the edit to the post the psu is rated f tier. I would rather not risk another situation like this. I’m going to buy a better psu.

[191x7]

20 minutes ago, Eeevaporated said:

Probably not, as I mentioned in the edit to the post the psu is rated f tier. I would rather not risk another situation like this. I’m going to buy a better psu.

But you can RMA and then sell the unit, have it as a spare, or build some other (weaker) system with it. Don't just throw it.