So I've built all of my PCs from 1993 to present and have never seen an issue like this before. I'm not sure how to describe this so I'll just explain it and see what happens. This system has the following parts
AMD FX8320 cpu,
Coolermaster Psideon 120v AIO CPU cooler
AsRock 990FX Killer mobo,
AMD R9 390 gpu,
12GB generic DDR3
750W Thermaltake modular PSU
3x samsung 500gb HDDs in a raid array
120gb kingston ssd boot drive
60gb patriot inferno ssd for swap files,
4Tb external HDD for storage
Running on Win 10 Pro x64
1. When I put the machine together, the first thing i noted was it would not turn off. Well, it would, but start right back up again. If you use the physical power button or the one in the OS, the results are the same, the system goes through the motions of a shutdown and the fans power down, then less than a second later, starts up again. I've checked and double checked all the cables going to the mobo, gpu, etc, and the header pins are all fine, no issues anywhere that I can see but it just wont stay powered down. I did find that if I wait for the fans to stop spinning then quickly press the Reset button, then the Power button, the machine powers off and stays that way.
2. The second issue is the mobo has this "boot guard" feature that dumps you back into the UEFI setup if the system fails to boot 3 times. Due to the weird shutdown issue, UEFI is popping up nearly all the time. I understand this and disable the bios as all I'm doing in it is pressing F10 then Enter (save & exit). You would think that would solve it but when the machine powers up I pretty much roll a dice - if the AsRock logo at boot is in High Res, the system will start, if its in Low Res, the system will drop back to UEFI. F10 & enter does fix things.
So, those two things are my weird problem and I'm sure they are the cause of the other two issues I'm seeing on this system.
3. sometimes (four times in 2 months) I cant power on the system. The fans spin up, I can hear the raid array click as the HDDs power on, then nothing. the screen stays blank and no amount of resetting/restarting will help. The only fix at this point is to open the case and reset the cmos jumper. At other times (also about four times in two months) i experience this very same issue and a quick power down and back up again fixes it, and the boot sequence continues.
4. my last issue is possibly the most frustrating as it happens when the system has been on for a while (this could be anywhere from 5 min to a few hours) then suddenly three or four USB devices will all turn off at the same time - for some reason, my usb keyboard is never affected by this and i can use it to reboot the system - problem being rebooting results in wondering if issues 2 or 3 will show its head again
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I hope this makes sense, i'm happy to go into details for anything, i'm just hoping one of you awesome tech gods can point me in a direction to fix this mess
Kind Regards,
Mike.
AMD FX8320 cpu,
Coolermaster Psideon 120v AIO CPU cooler
AsRock 990FX Killer mobo,
AMD R9 390 gpu,
12GB generic DDR3
750W Thermaltake modular PSU
3x samsung 500gb HDDs in a raid array
120gb kingston ssd boot drive
60gb patriot inferno ssd for swap files,
4Tb external HDD for storage
Running on Win 10 Pro x64
1. When I put the machine together, the first thing i noted was it would not turn off. Well, it would, but start right back up again. If you use the physical power button or the one in the OS, the results are the same, the system goes through the motions of a shutdown and the fans power down, then less than a second later, starts up again. I've checked and double checked all the cables going to the mobo, gpu, etc, and the header pins are all fine, no issues anywhere that I can see but it just wont stay powered down. I did find that if I wait for the fans to stop spinning then quickly press the Reset button, then the Power button, the machine powers off and stays that way.
2. The second issue is the mobo has this "boot guard" feature that dumps you back into the UEFI setup if the system fails to boot 3 times. Due to the weird shutdown issue, UEFI is popping up nearly all the time. I understand this and disable the bios as all I'm doing in it is pressing F10 then Enter (save & exit). You would think that would solve it but when the machine powers up I pretty much roll a dice - if the AsRock logo at boot is in High Res, the system will start, if its in Low Res, the system will drop back to UEFI. F10 & enter does fix things.
So, those two things are my weird problem and I'm sure they are the cause of the other two issues I'm seeing on this system.
3. sometimes (four times in 2 months) I cant power on the system. The fans spin up, I can hear the raid array click as the HDDs power on, then nothing. the screen stays blank and no amount of resetting/restarting will help. The only fix at this point is to open the case and reset the cmos jumper. At other times (also about four times in two months) i experience this very same issue and a quick power down and back up again fixes it, and the boot sequence continues.
4. my last issue is possibly the most frustrating as it happens when the system has been on for a while (this could be anywhere from 5 min to a few hours) then suddenly three or four USB devices will all turn off at the same time - for some reason, my usb keyboard is never affected by this and i can use it to reboot the system - problem being rebooting results in wondering if issues 2 or 3 will show its head again
----------
I hope this makes sense, i'm happy to go into details for anything, i'm just hoping one of you awesome tech gods can point me in a direction to fix this mess
Kind Regards,
Mike.