Dell Poweredge SC 1430 unexplained restarts, 40 in the past 72 hours

DC, Server 2003, Exchange 2003, BackupExec, Sophos, Nothing newly installed... maybe MS updates a couple weeks ago. Certain NO Malware NO virues.  These shutdowns started Thu 3/08 out of the blue and continues. The last one was today around 2:03 PM. Dell has a GUI Online Diagnostics that DOES NOT check power supply. Pretty much the results are OK. No event logs except "unexpected shutdown" and the routine startups that follow 15 minutes later.
techno-nothingAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

techno-nothingAuthor Commented:
I guess my question:

Does anyone think this is more than a power suppy issue... and is there a way to know for certain?
0
Cris HannaCommented:
Frequently when I've seen something like this, it's bad memory...
BUT
Do you have this box connected to an UPS?   If so, try plugging straight into wall outlet
Just had this at one customer, plug into wall..no more shut downs
0
Davis McCarnOwnerCommented:
In order:
1) CPU Overheating (should have been checked by diags; but SIW would show you temps under sensors: http://majorgeeks.com/SIW_System_Info_d4387.html )
2) UPS (?) failing (try bypassing straight to wall or another UPS)
3) Power Supply ($69.00: http://www.ebay.com/itm/Dell-MK463-Power-Supply-750-Watt-Precision-690-SC1430-/350541997508?_trksid=p3284.m263&_trkparms=algo%3DSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%26otn%3D21%26pmod%3D200721948564%26ps%3D54 )
0
Get your problem seen by more experts

Be seen. Boost your question’s priority for more expert views and faster solutions

noxchoGlobal Support CoordinatorCommented:
Enable dumping. It can be BSODing. Right click on My Computer - Properties - Advanced system settings - There System Startup, debugging etc. Press on Settings - Small Memory dump.
0
techno-nothingAuthor Commented:
After 40 mysterious restarts in a 72-hour period the system finally "Halted on COM1". Looking closely at the controller card, we noticed that the capacitors were swelled. We replaced the controller card and voila!

Thanks everyone for your suggestions. –M
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
techno-nothingAuthor Commented:
ABC
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Legacy OS

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.