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Solved Have I got a faulty motherboard?

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So I was starting to make a new build the other day here is the specs of the build

NEW BUILD
MOBO: AsROCK B450 Steel legend am4 (atx size) (The motherboard was already updated to support my CPU)
CPU: AMD Ryzen 5 3600 3.6ghz
RAM 2x Corsair vengeance LPX 16GB 3200Mhz
PSU: Cooler master 600w MWE 230v v2 (Replacement power supply after capacitor blew). The previous psu I was using was a Corsair CX600M
Graphics card: Radeon RX 570 8GB

Probably not needed but in case your interested in knowing my old build specs here they are:


OLD BUILD
CPU: Intel core i5 4460 3.20ghz
RAM: 12gb DDR3 830MHz
Motherboard: H81M-Plus
Graphics card: Radeon RX 570 8gb
Storage: Crucial CT128M550SSD1
1863GB Western digital WDC WD20EARS-00MVWB0



And for storage I just used the SSD from my previous build and hard drive, both are working before the build and after the build on my old computer as I'm waiting for a motherboard replacement.

So all my parts arrived on my birthday, I started to build the pc with all the new parts except the new powersupply, the powersupply I put in the computer was a 600w supply that I didn't realise how old it was it was a 13 year old supply, as my boyfriend gave it to me it was a spare from one of his old builds and he didn't realise how old it was, I also used it in my old build for a couple of years. I tested the pc downstairs and everything was working brilliantly, benchmarked and got great performance in games. I turned the pc off, unplugged it and carried it upstairs carefully and started to plug it in to the socket on the wall in my room, as I was testing the computer downstairs and the full time spot would be in my bedroom. I connected the keyboard and mouse and booted the pc up I noticed as I booted it there was a little pop and the smell of burning so I instantly turned it off and unplugged it from the wall. I looked at all the parts to rule out if it was any capacitors on the motherboard, none of them were swollen or exploded. once I got the courage I booted it back up again and got 3 beeps from mobo speaker and the psu fan would run 3 cycles or so then stop. I checked the PSU and the white capacitor had blown. I ended up ordering a new power supply and it arrived a day later. I installed the new power supply, the pc was working again, so I had everything turned off at the socket and plugged in my mouse turned the computer on and noticed that it was no longer working/realising I had a mouse in, the rgb wasn't working on the mouse either. I plugged it into all the other USB ports to see if it was a faulty USB and it worked in none of them. I decided to turn the computer off again and unplugged the keyboard USB and the USB for the RGB and moved it into the original USB where the mouse was plugged in and the mouse where the keyboard was plugged in. I turned the computer on and my keyboards RGB went white in the centre and started to smoke, I instantly turned it off and didn't even attempt to try to see if the keyboard was still working, it stunk like burning electrics. I also tried another mouse and that mouse is no longer working.. Do you think this is a faulty motherboard? Everything was wired correctly and it would boot into windows fine before the PSU capacitors blown and also after the replacement of the PSU, the fan was working on the CPU, the RAM was working, GPU was working. I just don't understand what went wrong?
Apologies for the long post, thanks for your time for reading though, please let me know what you think the issue could potentially be.
And as for problems with the electric in my room, I am currently using my previous build in the exact socket my new build was in, there is nothing wrong with the electrics in the house, I'm currently using the new PSU in my old pc.
 
everything was working, then you moved it, then it blew up. :(
either it didn't like being moved and something shorted somewhere or you were just d*mn unlucky.
but with the pop, burning smell, and smoke, yes you have fried parts, and that at least would encompass the motherboard.
you won't know about other potentials until that is replaced. (sounds like the keyboard can be moved to the top of that list though)

I know we all think we build correctly and carefully, and I still make the odd rookie error sometimes - so check and double check your build, looking for shorts, crimped cables, motherboard stand-offs, PSU voltage selector switch (if it has one, most of ours in Oz have a 110 or 240 volt selector and I got one once from the shop pre-set to 110 - so it went pop as soon as I turned it on!!!)
 
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If the power supply did fail it is VERY common that they take out other hardware components when they do fail. Whilst the motherboard is the most common component to fry everything else may also have been nuked.
 
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If the power supply did fail it is VERY common that they take out other hardware components when they do fail. Whilst the motherboard is the most common component to fry everything else may also have been nuked.
trust my luck for all my parts to be potentially nuked on a brand new build. I wish I just bought a new psu altogether before building the PC. I ordered a new mobo same one, do you recommend I get new ram, cpu? Gpu is fine it's running on my old pc no problem.

Edit. unsuitable language removed
 
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everything was working, then you moved it, then it blew up. :(
either it didn't like being moved and something shorted somewhere or you were just d*mn unlucky.
but with the pop, burning smell, and smoke, yes you have fried parts, and that at least would encompass the motherboard.
you won't know about other potentials until that is replaced. (sounds like the keyboard can be moved to the top of that list though)

I know we all think we build correctly and carefully, and I still make the odd rookie error sometimes - so check and double check your build, looking for shorts, crimped cables, motherboard stand-offs, PSU voltage selector switch (if it has one, most of ours in Oz have a 110 or 240 volt selector and I got one once from the shop pre-set to 110 - so it went pop as soon as I turned it on!!!)
To be fair I should have waited until my new case arrived as I built it in my old case, it's quite cramped and it's more or less impossible to have cable management within it not to the point though were cables are hitting fans etc, everything seemed to be in order though cables were definetely plugged in correctly. I'm starting to think however that it might have also had something to do with the backplate behind the cpu. My boyfriend installed the fan and I let him build most of the pc because I knew he would want to and get carried away because it is enjoyable building a fresh pc, he knows what hes doing as hes been building for years, but I think intel compatible motherboards which he has only ever built with and myself included, (I've only ever built 2 PCs) dont have that backplate behind the cpu that needs to be tight and secure, however it wasnt really it was connected definetely via the fan mounting screws but as soon as I was breaking the computer down and loosened the fan the backplate fell straight off. From what I've heard correct me if I'm wrong the backplate is meant to be attached with some sort of sealant to the back of the mobo from the manufacturer and shouldnt come off, I'm starting to think that it might have something to do with the backplate not being secured properly.. going to build it once the new case comes on Sunday. I dont know whether I should just request a replacement for all the parts that I built with just in case any of them are damaged.
 
@Pepparhh no need to quote previous posts.

Unfortunately repairing computers is usually limited to substituting suspect parts with known good ones to test with. If you have ordered a new motherboard, replace the old one with it and go from there. You know the GPU is ok, so that is good.
 
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@Pepparhh no need to quote previous posts.

Unfortunately repairing computers is usually limited to substituting suspect parts with known good ones to test with. If you have ordered a new motherboard, replace the old one with it and go from there. You know the GPU is ok, so that is good.
I just hope the ram and the cpu is okay, I really dont want to have to send them back too but it's probably the best bet.. I'm starting to think maybe the cpu backplate was slightly loose causing problems with processing potentially, I'm not sure though if that makes a difference, I've never done a AMD build before and intel boards dont seem to have that kind of backplate..
 
Again @Pepparhh PLEASE do not quote previous posts

If you are unsure as to the fitting of the CPU or any other hardware it is far better to consult someone who is familiar with it, or at least research it.

The system may be somewhat tested by connecting a speaker to the motherboard and then observing the beeps on startup. Not foolproof but may indicate if it is ok?
 
Again @Pepparhh PLEASE do not quote previous posts

If you are unsure as to the fitting of the CPU or any other hardware it is far better to consult someone who is familiar with it, or at least research it.
Ah apologies, the cpu was definetely seated correctly with the two bottom triangles lined up to one another when I installed it. It's a tough one because I think if I asked someone who was familiar with the hardware they would probably say that there seems to be a faulty part. All the parts are compatible, there shouldnt be any problems like this apart from the hard drive and ssd being dated, I'd be very surprised if that was the problem. And I did research into the parts for this build a lot prior to purchasing them, I done compatibilty checks, checked how much watts each part would need etc everything I could think of. I think like you say any of the parts could be fried so I'll just have to replace them in case and start fresh
 
I'll try that out when I rebuild on Sunday, when I booted after installing the new psu I just got 1 quick beep and then bios screen then windows before having problems with USB ports.
 
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