I gather that your 7760 is a "All In One" because no other configurations were shown at Google Images.
You said, "After a couple days"... and does this mean your 7760's are a couple of daysold, because you also said "We are running these machines almost 24/7"?...
If these are "older" Systems, we agree, heat is the villain and probably lots of dust too... (because your 7760's share the same environment and they are failing about the same time). So I'm curious about your 7760 age and if they are in a office or factory setting?
This is the board and it's not that large (judging by USB connectors), but heat and proper ventilation will remain a major factor because display heat is added too... No idea what the CPU heat sink looks like? I note that your Power Supply appears to be "internal" and that's too bad because they usually generate LOTS of heat! There also appears to be a metal 'shield' over the motherboard and this can create a 'oven' environment that can 'bake' electronics inside too? But that shield may used to keep RF radiations down?
If I owned a 7760 I would drill LOTS of holes towards the top of that shield or remove it completely if possible?
Seriously, I would ask around for a reliable PC Tech with plenty of Dell/laptop experience. You didn't mention how many 7760 you have, but if it's five or more, have him or "her" come to you and clean-out all of the 7760 case interiors that same day! That visit may be a bit pricey, but it's better than lugging your systems to the car one-at-a-time and then waiting around for service.
This mayalso avoid separate bills for each system taken 'over the counter' because you are essentially hiring him or her "by the hour".
Your Tech will be 'captive' and all of your Systems get serviced the same day and hopefully with just one service call and 1 hourly bill? Have them work on the systems that fail most ~ first and this should get your 7760's back online faster too!
Also, if these are older systems it may be a perfect time to replace your CMOS batteries?
In the future, if you start to see more shutdown failures, it may be time for a second service call?
Unfortunately, I don't have any significant insight into this, but we were dealing with this with one 7760 AIO. My main suspicion at this point was hard drive [failure]. However, the place where the problem AIO was being used has been historically notorious for odd PC behavior, despite having a battery backup. It's in a woodshop, so there's a dust problem in addition to whatever odd power activity that workstation experiences. However, there was a second AIO being used in the same room and wasn't experiencing similar symptoms.
Then, the AIO wouldn't turn on for a while. It seemed quite like it was getting overloaded and after power had discharged, it would be able to run again. The AIO don't appear to have the ability to discharge the PSU like many desktops.
Eventually the hard drive failed to the point of being unable to boot, but we were still able to recover data with EaseUS. I haven't tried to fix the mbr at this point (still in recovery phase).
So main 2 troubleshooting points I'd try is:
1) Does the AIO act up in a different location?
2) If you put in a new hard drive, do you have the problem still?
SOGLAD5
1 Rookie
•
103 Posts
0
June 23rd, 2019 21:00
I gather that your 7760 is a "All In One" because no other configurations were shown at Google Images.
You said, "After a couple days"... and does this mean your 7760's are a couple of days old, because you also said "We are running these machines almost 24/7"?...
If these are "older" Systems, we agree, heat is the villain and probably lots of dust too... (because your 7760's share the same environment and they are failing about the same time). So I'm curious about your 7760 age and if they are in a office or factory setting?
This is the board and it's not that large (judging by USB connectors), but heat and proper ventilation will remain a major factor because display heat is added too... No idea what the CPU heat sink looks like? I note that your Power Supply appears to be "internal" and that's too bad because they usually generate LOTS of heat! There also appears to be a metal 'shield' over the motherboard and this can create a 'oven' environment that can 'bake' electronics inside too? But that shield may used to keep RF radiations down?
If I owned a 7760 I would drill LOTS of holes towards the top of that shield or remove it completely if possible?
Seriously, I would ask around for a reliable PC Tech with plenty of Dell/laptop experience. You didn't mention how many 7760 you have, but if it's five or more, have him or "her" come to you and clean-out all of the 7760 case interiors that same day! That visit may be a bit pricey, but it's better than lugging your systems to the car one-at-a-time and then waiting around for service.
This may also avoid separate bills for each system taken 'over the counter' because you are essentially hiring him or her "by the hour".
Your Tech will be 'captive' and all of your Systems get serviced the same day and hopefully with just one service call and 1 hourly bill? Have them work on the systems that fail most ~ first and this should get your 7760's back online faster too!
Also, if these are older systems it may be a perfect time to replace your CMOS batteries?
In the future, if you start to see more shutdown failures, it may be time for a second service call?
I trust you've seen this:
OVERHEATING
Here is another link that may help
OVERHEATING 2
Get the full service manual here:
OPTIPLEX 7760 SERVICE MANUAL
I searched inside for "overheating" and it was not mentioned...
Anthony
Andy Art Helpdesk
1 Message
0
January 28th, 2020 13:00
Unfortunately, I don't have any significant insight into this, but we were dealing with this with one 7760 AIO. My main suspicion at this point was hard drive [failure]. However, the place where the problem AIO was being used has been historically notorious for odd PC behavior, despite having a battery backup. It's in a woodshop, so there's a dust problem in addition to whatever odd power activity that workstation experiences. However, there was a second AIO being used in the same room and wasn't experiencing similar symptoms.
Then, the AIO wouldn't turn on for a while. It seemed quite like it was getting overloaded and after power had discharged, it would be able to run again. The AIO don't appear to have the ability to discharge the PSU like many desktops.
Eventually the hard drive failed to the point of being unable to boot, but we were still able to recover data with EaseUS. I haven't tried to fix the mbr at this point (still in recovery phase).
So main 2 troubleshooting points I'd try is:
1) Does the AIO act up in a different location?
2) If you put in a new hard drive, do you have the problem still?
savvy2
3 Apprentice
•
2.5K Posts
0
January 29th, 2020 09:00
85 is hot, 85F , most PC sold are limited, (in this class) as 95F, so all just a bit of wood does packs up inside
and it now overheats.
NO PC is made for dust of this scale.
so take them apart and blow out all the dust, this will need to repeated , every time they fail
or learn the fail rate and do it proactively.
there are only a few cures.
been in many dusty places me.
1: PC in dust free fan fitted cabinet and daily filter cleaning. using real desktops never AIO
2: clean it when it fails. your ALL in one.
you do know they sell dust free cabinets for computers right , your not the first one to discover this.
the parts inside for sure all heatsinks and fans inside but not be allowed to packup in wood dust.
one other choices is fanless PCs that have no vents,or have water cooling towers. all are expensive.
your PC is air cooled, and not be allowed to packup.