Aghhh have I just killed my CPU? System inactive with the CPU in the socket and the level down..

The spontaneous power on definitely shouldn't happen. Hate to make things worse but I'd seriously look at the mobo as the culprit.
I fear you may be right Sir. I just tried a brand new CPU, perfectly installed, held my breath and pressed the power button, and it has exactly the same problem. Red light comes on the mobo power button, but no boot at all. I just don't know what I coould have damaged except perhaps the socket somehow. It's never happened before. :(
 
What is the new CPU? (maybe needs bios update)

Could try flashing bios again any way, just in case.
It's a 5800x (I am so annoyed I have been forced tp upgrade to this but it was the only Zen3 in stock in Europe at MSRP. The 5600x and 5900x are either out of stock or scalped to hell and make the 5800x actually look reaosnable lol) and the BIOS I updated to was pretty recent. Considering I had the same probem with the 3300x which was working perfectly until I messed with the heatsink, it's not looking good. Butyou are right my good man, I have nothing to lose my trying a reflash other than time. :)
 
When i got my 5800X it was the only Zen 3 available at the time and kept going out of stock so snapped it up, only to find others landed just a few weeks later. (am happy with it though)

Suggested a bios flash because it can't make it worse (hopefully).
 
Sounds like motherboard to me. Try it outside of the case, in case it is shorting on something. Also try it with a single stick of RAM installed.

I wonder if working on the system with the power on might somehow have caused the problem or made it worse, especially removing and re-inserting the CPU.
 
Sounds like motherboard to me. Try it outside of the case, in case it is shorting on something. Also try it with a single stick of RAM installed.

I wonder if working on the system with the power on might somehow have caused the problem or made it worse, especially removing and re-inserting the CPU.
Good idea, I will try it outside of the case tomorrow morning. No idea if working with the system made it worse, but the moment I checked the heatsink was when everything stopped when I initially powered the system on again, so I think by that point it was game over and the damage was done.

Assuming it doesn't work out of the case I'm temped to buy another mobo and sell the RMA'd one when it gets back. Don't fancy being without a PC for 2-3 weeks.
 
If the difference was between a lever up and down, then it was obviously the board. Sucks, RMA is long too.
How long do you think it will take? I'll be shipping from cental Europe to the MSI service center Poland so luckily no UK border stuff to worry about.
 
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Well guys, my usual persistence in no taking **** has paid off. :o

After 6 months the retailer I bought from tell you to go to MSI for support. However, under both UK and EU law the seller is obliged to deal with returns and replacements. I went on the retailer chat and reminded them of their legal obligations and asked them to sort me out a replacement board asap, I even linked them to the available stock. As a result of this they are sending a replacement to me immediately at no extra charge and have sent me a return label for the original defective board. No long or crappy MSI RMA service shall be used. :D

Really annoying that the retailer are trying this **** though... at least now I know how to get around it. :)
 
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Been watching this thread, let us know if the new motherboard sorts out the problem.

Also if the new motherboard does work, could you post the temperatures of the 5800x with the mugen 5 please, as it's the same combo I will be using.
 
Been watching this thread, let us know if the new motherboard sorts out the problem.

Also if the new motherboard does work, could you post the temperatures of the 5800x with the mugen 5 please, as it's the same combo I will be using.
If it doesn't sort out the problem I may be the forums first case of Seppuku. :D

No worries about the temps, I will report back here if it's up and running. I may also get new case fans as the Silent Wing 2 fans that I have are a bit feeble. Also the Mugen 5 fan is "ok" but can make a bit of noise when it gets going high.

I will have a 3080 ME (3090) in my rig so that will also undoubtedly dump a ton of heat in there. I will likely not be doing any overclocking, all stock.
 
Might be a bit late, but sometimes thermal paste can get stuck inside the mounting holes for AMD sockets causing intermittent failures.

If you pretty much flood the socket with isopropanol move the socket around using the seating lever, then attempt to soak up as much dirty liquid with cotton bud you can clean the sockets up.

I've had a few instances of this due to over application of thermal paste or thermal paste between CPU pins during seating causing intermittent connection issues.
 
Might be a bit late, but sometimes thermal paste can get stuck inside the mounting holes for AMD sockets causing intermittent failures.

If you pretty much flood the socket with isopropanol move the socket around using the seating lever, then attempt to soak up as much dirty liquid with cotton bud you can clean the sockets up.

I've had a few instances of this due to over application of thermal paste or thermal paste between CPU pins during seating causing intermittent connection issues.
Too late for me mate im afraid but hopefully someone else will find your useful information a big help in future! :)
 
Well guys, my usual persistence in no taking **** has paid off. :o
I went on the retailer chat and reminded them of their legal obligations and asked them to sort me out a replacement board asap, I even linked them to the available stock. As a result of this they are sending a replacement to me immediately at no extra charge and have sent me a return label for the original defective board. No long or crappy MSI RMA service shall be used. :D
Some retailers, like OCUK, will deal with the warranty in the first year but all they will do is send to the manufacturer for repair on your behalf so it's the same as dealing with the manufacturer directly. Others will just replace it if they have stock.
 
ZOMG it's booted into windows yayyyyyyyyyyyyyyyyyyyy. :D

There is nothing as stressful as doing a new build with high value components, my heart was in my mouth when I first booted it all up outside of the case. Happily I saw the boot screen, so put it all together and now it's chugging away. Need to set the BOS and check temps and, well... just see how some games run. :)
 
ZOMG it's booted into windows yayyyyyyyyyyyyyyyyyyyy. :D

There is nothing as stressful as doing a new build with high value components, my heart was in my mouth when I first booted it all up outside of the case. Happily I saw the boot screen, so put it all together and now it's chugging away. Need to set the BOS and check temps and, well... just see how some games run. :)

Glad your back up and working! Yes I think we all know that feeling! High end of not, no one likes to waste any money or watching things go up in smoke.

Even the cost of low to mid range components can be a lot to some people! that first power on is always the most worrying.
 
Glad your back up and working! Yes I think we all know that feeling! High end of not, no one likes to waste any money or watching things go up in smoke.

Even the cost of low to mid range components can be a lot to some people! that first power on is always the most worrying.
Heh thanks mate, you are right the first boot is a heart in mouth moment, but it's all running very sweet now, game tested for hours. I had another scare where I updated the BIOS and the system hung (******* MSI) and I couldn't get it to restart so thought t was bricked... but luckily the next day I managed to get it to reset.

Spent the weekend gaming on a TV and now considering an LG 65" OLED... :o
 
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I have an older OLED (c6v) and have never connected my pc to it.

Pc gaming for me is about refresh rate and KB and mouse at a desk kind of setup.

I'll try it one day though.
 
I have an older OLED (c6v) and have never connected my pc to it.

Pc gaming for me is about refresh rate and KB and mouse at a desk kind of setup.

I'll try it one day though.
I thought the same until I bought a PS5 gamepad and then hooked up the PC to the TV to play Witcher 2 and RDR2 etc at 4k6. Holy crap... it's like having a PS8. Try it and see. :D
 
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