PC's randomly freezing

sajunky said:
If you are so convinced it is not Windows 10 issue, it would help if you had posted motherboard model number. But perhaps you are not convinced, as you didn't. ;)
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You mean this model number?

Biostar H81MHV3 M/B

The one in my original post?
 
avk said:
- Can it be heat? Surely the PC will restart if it's a heat problem? Not totally freeze? All fans are turning as they should. Intel diagnostic report shows normal heat.
- CPU has thermal paste

I keep on coming back to the motherboard. The only difference between the older and new PC's is the motherboard. Same RAM. Same HDD. Same software.
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I have had a heat issue where the entire PC just locks up completely, if there was any sound being generated at that point it repeat the last 1/3 second (pretty much just a buzz) until I reset the machine hard. Sorted that one out by reapplying thermal paste to all the heat sinks, including those on the motherboard and GFX card. If memory serves that was a Foxconn motherboard (a brand I wont ever buy again). This is 13 odd years ago so I wont be surprised if they dont react the same way to the same problems any more...
 
avk said:
You mean this model number?

Biostar H81MHV3 M/B

The one in my original post?
Click to expand...
Sorry I missed that. How do you aply thermal paste? One drop in the middle (as some suggested) or evenly spread?
(This is OT, as it wouldn't affect all computers).
 
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sajunky said:
Sorry I missed that. How do you aply thermal paste? One drop in the middle (as some suggested) or evenly spread?
(This is OT, as it wouldn't affect all computers).
Click to expand...
Personally I usually just place a drop in the middle. Never had any issues. Usually spreads nicely when the CPU is dropped down.

Although for these PCs I of course didn't do the building. :)
 
Did you teast with other OS? If not a hardware, then it is Windows 10.
The later, almost sure.
 
Try other Operating systems as suggested earlier - Ubuntu or Linux Mint.
Maybe load one of the new machines with Windows 7 to prove that it is hardware.

Run some software to exercise the machine/s and wait to see.
Don't waste time loading office etc, just load the OS and all drivers.

Once you have proved that the issue persists with different OS then return computers to your supplier to sort out.
 
Electron1 said:
Try other Operating systems as suggested earlier - Ubuntu or Linux Mint.
Maybe load one of the new machines with Windows 7 to prove that it is hardware.

Run some software to exercise the machine/s and wait to see.

Once you have proved that even with different OS then tell your supplier to sort it out.
Click to expand...

I am currently doing exactly this.

Had to get away for business for a while, so I only got to do this today. Installing Ubuntu on one PC and will install W7 on another. See what happens.

Supplier is helping from their side as well, contacting the MB manufacturer directly. Nobody can figure out the cause, but they are really going out of their way to help. Hopefully we can get this sorted.

I am also now moved on to check for a possible network issue with the switches.
 
Try reinstalling windows again and make sure updates are installed. Then check hardware drives is correct for this version windows you using...
 
avk said:
RAM was swapped out with known working RAM and issue persists.

First thing I checked and tried. :D
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A bit of an assumption on my part, but I assume the known working RAM was taken from one of the functional 20 systems where the only difference is the mobo (so same model RAM across all 40 systems). Some motherboards can be quite RAM sensitive and if it isn't an exact model listed on the compatibility list for single/dual channel setups as per your config then it may be that the mobo simply doesn't like the ram you are using. Have you tried using known working ram directly off the vendors ram compatibility list? It sounds unlikely, but I have had a similar issue myself.
 
rtzouves said:
A bit of an assumption on my part, but I assume the known working RAM was taken from one of the functional 20 systems where the only difference is the mobo (so same model RAM across all 40 systems). Some motherboards can be quite RAM sensitive and if it isn't an exact model listed on the compatibility list for single/dual channel setups as per your config then it may be that the mobo simply doesn't like the ram you are using. Have you tried using known working ram directly off the vendors ram compatibility list? It sounds unlikely, but I have had a similar issue myself.
Click to expand...

I've tried RAM from different machines, one exactly the same RAM module from a working machine, other different type/make of RAM also from a working machine. Supplier also did the same when testing. No go. RAM does not seem to be the issue.

I've since been on the phone with headoffice and through them with the manufacturer. May PC's with this config are running fine elsewhere, so I'm now moving on to the network infrastructure. Checking that for possible issues.
 
sajunky said:
Windows 10
Click to expand...

Yes, yes.

Heard you the first 50 times.

Have installed Windows 7 on 2 PC's as well as Ubuntu on 2 others. Keeping an eye on them. However today and yesterday NONE of the PC's froze.

Problem is that I cannot pinpoint WHEN the freeze happens. In other words I cannot force the problem or replicate the problem on demand. :(
 
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