Which part to replace next.

cyclery844380658

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I've recently built up a PC with:
Ryzen 5 3600 CPU
Corsair Vengence LPX DDR4 3200 Memory
Sapphire Pulse Radeon RX 5600XT GPU
Intel 660P 512 Gig M.2 Drive
EVGA 750 B5 PSU
Fractal Design Case

Originally I had an Asus B550 Motherboard, but I had a ton of issues with getting everything to work. Plus I didn't like the BIOS, and ASUS's helpdesk answer to my problem was, "It's either the PSU or the motherboard." I can't fault them too much as it's difficult to explain what is going wrong. I did get the PC to work for about a week with the ASUS mobo, but then it failed again and I couldn't even get to the BIOS without resetting the CMOS each time. I sent the ASUS mobo back to Newegg assuming(hoping) it was the culprit.

I then purchased the MSI MPG X570 motherboard. With this MSI mobo, I am having the exact same issues, but this mobo has the EZ debug LEDs (and a much better BIOS in my opinion) which give me some indication at what might be going wrong.

I can get into the BIOS fine, but when I try to load Windows, I can only get so far. I've tried re-installing Windows a couple times. The system seems to boot up to the Windows Install USB fine, but then once the install process goes past the USB phase and running from the M.2 Drive, things get unstable. Even after getting through entire Windows install process, I'll end up in the continuous reboot problem I'm having.

The reboot cycle looks like the following: monitor has no signal, the CPU EZ debug LED lights up for about 4 seconds, the CPU fan spins up, CPU LED goes out, skips the RAM LED, the the 2 bottom LEDs (GPU and Boot) blink on then off at the same time and then the fan slows down. The CPU LED lights up for 4 seconds, the CPU fan spins up, CPU LED goes out, skip the RAM LED, bottom 2 LEDs blink on/off, fan slows down. Rinse and repeat forever till I power down the system. If I leave the system powered down for a while, it'll let me get back into the BIOS and sometimes into Windows. But eventually, it'll blank out and go right back into the reboot cycle.

So it seems like a power issue somewhere since it can't seem to get past the POST when it gets into that cycle. Does that debug LED combination make sense? CPU LED for 4 seconds, skip the RAM LED, then the 2 bottom LEDs blink on then off? From the manuals and anywhere I look, those debug LEDs should light up and stay lit on the problem part, but mine just continually reboots instead.

My question is, what part do I replace next to hopefully get a stable system? PSU? RAM? Drive? Any help or guidance would be much appreciated.
 
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Hardcore Games™

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I use Corsair HXi which are platinum so your PSU could be more efficient

Enable UEFI which should perk up the boot times after a few reboots

20.8.1 just came out for your video card from AMD.com
 

cyclery844380658

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Sorry, last time I tried to post something, it didn't work.

Mine is a Bronze certified PSU. I also did enable UEFI. I'd love to load any drivers, but I can't even get to Windows long enough to do anything. It just reboots then goes into that POST reboot cycle. I wish I knew what the LED pattern meant. CPU on for 4 seconds, skips RAM LED, then flash of GPU and BOOT LEDs.
 
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Svet

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What BIOS version board is using?
Can you provide better details about your memory sticks? how many are they, in which slots are installed
Have you tried another PSU yet?
 

cyclery844380658

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Thanks for the questions. Here's the memory I've been using:

CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Intel XMP 2.0 Desktop Memory Model CMK16GX4M2B3200C16

It's been a while since I've built a PC so I didn't know that certain RAM work better with either Intel or AMD. I also didn't notice the word "Intel" in the name of this memory on the Newegg website. What I did notice was how many people in the reviews said it worked fine for their AMD systems. One person even listed most of the same components I had. Either way, I've just ordered some new RAM that are Corsair Vengeance RGB Pro AMD optimized, according to Amazon's description. We'll see how that works out.

With regard to BIOS version, it's the default version. I haven't tried to update the BIOS yet since that's the most stable part of the system with this MSI board. If I can get Windows to load and not reboot as soon as I try to load any drivers, I'll work on the BIOS next. That is the most frustrating part. I had Windows loaded and working recently. As soon as I tried to run a USB DVD drive to install the motherboard drivers and utilities from CD, it reboots. As soon as I install a wireless network card to get online for downloading drivers, it reboots. And these reboots don't happen just once, they happen every time I try to do anything and lead to that reboot cycle I mentioned originally.

I did try a different PSU, but that didn't help. It behaved the same way. I also borrowed my wife's GeForce 1070 TI card to rule out my GPU. It behaved the same way with reboots.

So at this point, if the new memory I get on Sunday doesn't solve the issue, my only remaining component to replace would by my CPU. Could a CPU cause weird rebooting issues? I've always thought that they would just not work and no POST if there was an issue with the CPU.
 

Nichrome

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Hi
It's all electrical components, anything can cause all kinds of issues.
 

cyclery844380658

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Good point Nichrome. I've built about 10 PCs in my life and only 1 besides this one gave me issues. The other one was back in '07 and was a test to see how cheaply I could build up a Home Theater PC. I failed that test. : D
I will keep plugging away at this PC till I get it right. Thanks for any and all help.
 

cyclery844380658

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Just in case anyone has a similar issue, the resolution was the CPU. After trying a new motherboard (which I'm glad I did, this MSI BIOS is super easy and getting an X570 rather than 550 gives me more future options), using different drives, testing with a different GPU, trying new RAM and PSU, the very last thing was getting a new Ryzen 5 3600X. I could tell right away when installing windows, there was absolutely no reboots and everything was stable. I haven't had one reboot since installing the new CPU. SO HAPPY!!!!

Anyone want to buy a questionable Ryzen 5 3600 for super cheap. : D
 
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