Constant Re-Boots

GazzaMataz said:
OK I am still holding off replacing any hardware on this PC since I am convinced that the problem is something simple. I am pretty sure that the problem is down to the mobo/CPU and I read that sometimes the CPU might not be getting enough current and is re-booting? The problem does seem to be like something is shorting out. Is this some thing to do with 'AMD Cool n' Quiet' being enabled and 'Global C-states Control' set to Auto? This is slightly beyond my knowledge but is it worth a try? Also setting the voltage to the CPU to 1.35 from the default - defintely don't know what I am doing here…
Click to expand...
There have been Ryzen CPUs on the forums that couldn't run stable at idle and disabling C-States or a positive curve fixed it, but ultimately they had to be sent back to AMD and I don't think they developed the fault (i.e. it was like that out of the box).
 
OK I know I might be flogging a dead horse here but I have found that when I am running AIDA64 Extreme on my PC it never re-boots… So I thought I would play Skyrim on the sneaking suspicion that when my PC is under a certain load it will behave. Well I played the game for a solid hour and it never re-booted. Could this be to do with voltages? I have noticed that when my system does re-boot sometimes the onboard EZ Debug LED CPU light stays on indicating a fail - dodgy or knackered Threadripper 1920x CPU perhaps? AIDA gives the CPU Core as 1.440V and the CPU VID as 1.225V. I haven't got a clue what these should be???
 
GazzaMataz said:
OK I know I might be flogging a dead horse here but I have found that when I am running AIDA64 Extreme on my PC it never re-boots… So I thought I would play Skyrim on the sneaking suspicion that when my PC is under a certain load it will behave. Well I played the game for a solid hour and it never re-booted. Could this be to do with voltages? I have noticed that when my system does re-boot sometimes the onboard EZ Debug LED CPU light stays on indicating a fail - dodgy or knackered Threadripper 1920x CPU perhaps? AIDA gives the CPU Core as 1.440V and the CPU VID as 1.225V. I haven't got a clue what these should be???
Click to expand...
What is your core voltage at idle?

Mine sometimes goes very low but averages around 0.800v. Maybe yours does the same and reboots because it is to low.

 
@Tetras Sorry didn't check back on this thread I will give your suggestion a go but at the moment the PC takes like half an hour to boot up sometimes - deffo something wrong with either CPU or mobo. The Onboard LED CPU light stays on until the machine boots, the manual suggests that this means 'CPU is not detected or fail'. So I am not sure even voltages would do anything since this before it reached the BIOS?
 
Last edited:
OK I think that this is definitely the CPU since now when the PC boots up all the lights come on and the fans whirl but the Onboard LED light stays stuck on CPU. It stays like this for hours and nothing happens… So I think all the spontaneous re-boots were the CPU starting to fail and then gradually getting worse until not it just isn't working - would that make sense? Think I am going to grab a second hand CPU and swap it out, see if that fixes it. I don't think it is worth throwing too much money at the system since it is vintage 2017.
 
Well, I removed the CPU and inspected it. Looked like some of the pins where a little bowed which I think is OK since when you fasten the chip in they bend slightly. The thermal paste looked a little skimpy but I put it all back together again and restarted the system. Well! Instead of sitting there for ages and not even booting into BIOS let alone Windows it booted up fine and stayed running - fantastic! So I am now thinking it was the thermal paste all along??? It never overheated and I checked all the temperatures in various apps and it was always quite cool. I will go back in and completely replace the paste now and see if it behaves itself. I have a tube of Arctic MX-2 so that should do the trick. This really has been a weird one… Hope it helps others with the same problem :-)
 
Well here is a photo I tool of the bend pins on the motherboard. Don't fancy bending every single one back into place with a fine needle…

I don't think me removing the CPU did this since the computer wasn't even booting into BIOS before this now it does. It still does it spontaneous re-boot but hardly at all now. I did undo the CPU container in the wrong order it was meant to be 3-2-1 but I kinda did them all a little bit each… :cry:

Threadripper%20x399%20CPU%20Pins.jpg
 
You must log in or register to reply here.
Back
Top Bottom