Recently, I had a customer Dell monitor fail. Inspection revealed swollen capacitors in the power supply. My son has been seeing and replacing the same kind of swollen capacitors in Flat panel television power supplies with a good success rate. My guess is that this is a capacitor manufacturing issue (low quality or NO quality) and these capacitors are used in power supplies of many different products. They run for a while but fail prematurely, taking out the device they power. I'm trying to get a capacitor order together for next week so we can put a few devices back into service. We're going to try some capacitors with a slightly higher voltage rating and the same microfarad rating and see if we can get a little better service time out of them. Many of the TVs my son is seeing are less than a year old.
Len Hammond CSI:Hartland, LLC [email protected] On Fri, Nov 18, 2011 at 4:49 PM, Orland, Kathleen <[email protected]>wrote: > I went through a spate of Dells (read skid) last year with every last one > of > them going up in noise, sparks, flames, and smoke. They were all sent to me > by our head office for a desktop upgrade for my users. Not one Dell > survived. I didn't even keep a record of the model number or S/N because > they were all returned to H.O. for destruction. I'm trying to go through > emails, but I honestly can't recall off the top of my head what the model > number was (they were all the same). > > -----Original Message----- > From: Matthew W. Ross [mailto:[email protected]] > Sent: Friday, November 18, 2011 12:56 PM > To: NT System Admin Issues > Subject: Anybody else having large failure rates of Dell Power Supplys, SFF > Model Optplex 390 and/or 790? > > We're having a very large failure rate of computer power supplies in 2 of > our brand new labs. These are 2 labs of 32 computers each... one lab is > Dell > Optiplex 390 SFFs, the other is Dell Optiplex 790 SFFs. I think they use > the > exact same PS. > > Issues are either A) No power and no lights, B) Blinking yellow power > lights > and won't turn on, or C) *Poof* smoke. > > We have 8 failures in the past month out of 64 computers. I'm just curious > if anybody else on the list is seeing similar failures for recent SFF > dells... > > Sales rep contacted, I'm awaiting response. > > > --Matt Ross > Ephrata School District > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
