Cold boot intermittently can't get past CPU debug light

[Freakeh]

Hey there, I built my new PC at the end of November 2019. I currently have a reoccurring problem that on a cold boot my computer will turn on (fans and RAM RGB lights up) but no display is shown and it doesn't enter the normal BIOS loading screen. My motherboard gives me a CPU debug light when it is just stuck not doing anything. If I turn it off by holding the power button and then turn it back on then every time it has booted up fine. Here are the things I've tried already in an attempt to figure what is going on:

• Windows event log reveals nothing pertinent around the time that the problem happens
• I have tried reseating my CPU once and I have to say that the stock 3700X cooler is a massive pile of shit in terms of ease of use - the clamps are so hard to use and getting what felt a non-thermal paste smearing install took way too long.
• I have also checked my 8pin power connection and I am 100% sure it is snug and fit.
• I've run the memtest86 utility fully and it showed no problems
• When running CPU benchmarking like cinebench there are no problems which would infer voltage problems etc
• I did have some issues with latency (which I found using LatencyMon) but I found that I had some strange AMD drivers for SATA which were causing the issues
• I changed the power cord into the PSU to be plugged into the wall socket instead of the extension cable
• When looking at Ryzen master I can see my CPU overclocking itself when under load and also sleeping cores when completely idle. I have the two power plans that came with the chipset update and applying either has no effect on the cold boot 

I am a bit of a loss of what else I can try, I believe that I have to the end of the month before I can't return parts from where I bought them but that seems the last resort. I know there is a 4 pin power connector for CPU_PWR2 but I have read multiple times that is only required for significant overclocking which isn't what I am doing. Is there some weird BIOS setting that I'm missing, is it just the norm that this happens in modern builds (surely not?) or do I just have a faulty motherboard/CPU?

 

 

[Spakes]

Maybe try to connect that additional 4 pin? Worth a shot.

[Spakes]

Also if you can, try to find some other motherboards to test it out. Maybe your MoBo goes haywire for some reason...

[Master Disaster]

9 minutes ago, Freakeh said:

Hey there, I built my new PC at the end of November 2019. I currently have a reoccurring problem that on a cold boot my computer will turn on (fans and RAM RGB lights up) but no display is shown and it doesn't enter the normal BIOS loading screen. My motherboard gives me a CPU debug light when it is just stuck not doing anything. If I turn it off by holding the power button and then turn it back on then every time it has booted up fine. Here are the things I've tried already in an attempt to figure what is going on:

• Windows event log reveals nothing pertinent around the time that the problem happens
• I have tried reseating my CPU once and I have to say that the stock 3700X cooler is a massive pile of shit in terms of ease of use - the clamps are so hard to use and getting what felt a non-thermal paste smearing install took way too long.
• I have also checked my 8pin power connection and I am 100% sure it is snug and fit.
• I've run the memtest86 utility fully and it showed no problems
• When running CPU benchmarking like cinebench there are no problems which would infer voltage problems etc
• I did have some issues with latency (which I found using LatencyMon) but I found that I had some strange AMD drivers for SATA which were causing the issues
• I changed the power cord into the PSU to be plugged into the wall socket instead of the extension cable
• When looking at Ryzen master I can see my CPU overclocking itself when under load and also sleeping cores when completely idle. I have the two power plans that came with the chipset update and applying either has no effect on the cold boot 

I am a bit of a loss of what else I can try, I believe that I have to the end of the month before I can't return parts from where I bought them but that seems the last resort. I know there is a 4 pin power connector for CPU_PWR2 but I have read multiple times that is only required for significant overclocking which isn't what I am doing. Is there some weird BIOS setting that I'm missing, is it just the norm that this happens in modern builds (surely not?) or do I just have a faulty motherboard/CPU?

 

 

Can we have system specs?

 

You should start by upgrading the BIOS to the latest available version.

[Freakeh]

System specs are under the hyperlink of PC in the first line and I should have also noted that I have the most up to date version of my BIOS, one of the first things I did.

 

One annoying thing is that my PSU doesn't by default have a cable for the 4 pin power, so I would have to buy one (I had a brief look and was a bit overwhelmed with what I actually needed). My PSU back looks like below - would the cable connect into one of the 8 pins and then the other end would be 2 separate 4 pin (that can connect together) which I would only use half of?

 

 

Without buying another mother board I don't really have another I can test with as my previous build was intel CPU based.

[Master Disaster]

47 minutes ago, Freakeh said:

System specs are under the hyperlink of PC in the first line and I should have also noted that I have the most up to date version of my BIOS, one of the first things I did.

 

One annoying thing is that my PSU doesn't by default have a cable for the 4 pin power, so I would have to buy one (I had a brief look and was a bit overwhelmed with what I actually needed). My PSU back looks like below - would the cable connect into one of the 8 pins and then the other end would be 2 separate 4 pin (that can connect together) which I would only use half of?

 

 

Without buying another mother board I don't really have another I can test with as my previous build was intel CPU based.

That link doesn't work, it just says Private Link.

 

Yes that's correct, you can use an 8 pin (as long as it is 2 x 4) and just use half of it.

[Freakeh]

Oh apologies I didn't realize other people wouldn't be able to see it. Here are the specs:

 

I have bought https://www.ebay.co.uk/itm/CPU-8pin-to-4-4Pin-EPS-power-supply-cable-ATX-for-corsair-RM1000x-RM850x-RM75/223665968176?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 which should come before the 30th. If using it doesn't fix the issue then I guess I would look at RMA'ing the motherboard, would my issues be a worthy reason to get a replacement?