Solved

dell optiplex gx-270

Posted on 2009-07-10
9
1,621 Views
Last Modified: 2013-11-10
I have some dell Optiplex slimline gx-270's that are now starting to over heat and shut down.  I have cleaned them out, checked the fans and from time to time they will also blue screen.  The are out of warranty so I look for a solution that will keep me from replacing them.
0
Comment
Question by:gusmackey
  • 3
  • 2
  • 2
  • +2
9 Comments
 
LVL 32

Expert Comment

by:willcomp
ID: 24824944
Remove and clean the CPU heat sink and fan. Clean off old thermal compound, apply new compound, and reinstall the heat sink and fan.
0
 
LVL 69

Expert Comment

by:Callandor
ID: 24824948
These had bad capacitors on a number of them: http://forum.osnn.net/showthread.php?t=83297.  You can try replacing them yourself if you see that they are obviously bad and you can handle a soldering tool: www.badcaps.net
0
 
LVL 32

Expert Comment

by:willcomp
ID: 24825352
Good point about the bad caps. The ones I've seen with bad caps had visible swelling and/or leakage. Inspect caps for signs of swelling or leakage.

I've also seen slimline GXs with clogged heat sinks and dry/cracked thermal compound.
0
ScreenConnect 6.0 Free Trial

At ScreenConnect, partner feedback doesn't fall on deaf ears. We collected partner suggestions off of their virtual wish list and transformed them into one game-changing release: ScreenConnect 6.0. Explore all of the extras and enhancements for yourself!

 
LVL 92

Expert Comment

by:nobus
ID: 24829477
they even sell the replacement cap's in a kit :  http://www.thecapking.com/gx270.html
0
 
LVL 26

Expert Comment

by:PCBONEZ
ID: 24832869
Yes, check your heatsink air flow and thermal compound.

Most [if not all] SX-270 and GX-270 built before May 2004 had defective caps.
Those built after suffer from heat related capacitor failures.
[Slimline GX and the SX variants are the worst for this. Problem exists all the way into the GX-7xx models.]
Each 10c rise in temp reduces electrolytic capacitor life by 1/2. [It's logarithmic.]

One of the problems with the 270's is the air discharge horn on the CPU fan doesn't exhaust the hot air completely out of the case. That results in hot air blowing right on the VRM caps and MOSFETs and the air just recirculates inside the case without ever leaving.
The GX-280's (at least some of them) had an improved fan in which the air discharge horn was extended so the hot air bypasses the VRM components and actually makes it out of the case.
A GX-280 CPU fan assembly should fit a GX-270 heatsink as long as it's for the same case version.

.
0
 
LVL 1

Expert Comment

by:BryantBW
ID: 24832886
I work for a school system, and we *had* probably 500 of these in service at one point, until they all started going bad just out of warranty.  Check on your motherboard, around where the processor is and look at the capacitors.  See if any of them are swollen, if they are, then the motherboard has just died.... this was a major problem it seems for most all of the 270s.  The culprit most of the time is a capacitor with an X stamped on top of it, they swell the easiest, if this is not the case, get some base mounts and set them sideways, it seemed to extend the life for us.  Hope this helps.
0
 
LVL 26

Expert Comment

by:PCBONEZ
ID: 24832945
Opps.
When I said GX-7xx I was thinking of the GX-620's I've seen.
They are having issues with the small 4,5,6 mm caps going bad.
I only suspect the GX-7xx has that problem. The GX-6xx does.

The heat issues affect ANY brand of cap.
I've seen these systems bloat and/or vent top of the line Rubycon MBZ and MCZ series caps.
The defective batches were using Nichicon HN and HM series caps which do have an X vent stamp.
- But MANY companies use the X shaped vent stamp.
.
0
 
LVL 92

Accepted Solution

by:
nobus earned 500 total points
ID: 24833456
here an example :
Dellgx270-800.jpg
0
 
LVL 26

Expert Comment

by:PCBONEZ
ID: 24833484
Yup. - That one is an example of the defective Nichicon caps.
The Black and Gold leakers/bloaters with the X stamp are Nichicon HN series.
The Blue one with the K stamp is Rubycon MBZ series.
The Black and White with X stamp in the back are most likely Nichicon HM series.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: When experiencing some peculiar problem with the functioning of your PC, how many times has it happened that you look for a solution and even google can’t help? It could be that you are one of the only few people on earth who ma…
Or at least that’s the word according to a new blog from Tech Target on AWS’s new Managed Services (MS) offering. According to the blog, AWS is launching their AWS MS program to expedite the adoption of cloud by Fortune 1000 and Global 2000 companie…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
In a recent question (https://www.experts-exchange.com/questions/28997919/Pagination-in-Adobe-Acrobat.html) here at Experts Exchange, a member asked how to add page numbers to a PDF file using Adobe Acrobat XI Pro. This short video Micro Tutorial sh…

822 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question