Re: Power Supply?

["Chuck Lewis" <chuck.lewis@xxxxxxxxxxxxxxxxx>]

Good points John. I would add when blowing the fans out (with no power
of course) have a screwdriver handy that you can stop the fan blades
from turning. You would be AMAZED what a difference that makes in the
amount of dust you get out.

I'm lucky here. We have a very large air compressor in the warehouse
that is normally used for some cutting equipment but they let me
disconnect the air hose from that and attach a smaller end and as long
as I blow it out in the next warehouse room (about 10 feet away) they
are cool. MAN can the dust come out!

Chuck

-----Original Message-----
From: pctech-bounces@xxxxxxxxxxxx [mailto:pctech-bounces@xxxxxxxxxxxx]
On Behalf Of John Jones
Sent: Monday, November 08, 2010 8:44 AM
To: PC Technical Discussion for iSeries Users
Subject: Re: [PCTECH] Power Supply?

Possibilities in the order I'd try:
1. Loose connection somewhere (power cable, cables from PSU to
motherboard).  Tighten up or unplug/replug the connections.
2. Dust somewhere.  Use a can of compressed air & blow the dust out.
Hit
all vents & fans and make sure you blow out the PSU as well as the
CPU/case
fans.  Also blow out any heat sinks.  You might want to take the PC
outside
for this step.
3. Power supply. Swap in a known-good one.
3. Motherboard.  Examine the board for scorch marks.  Examine capacitors
for
bulges/leaks.  Replace
4. CPU.  Examine/replace thermal compound between CPU & heat sink.

If you get to items 3/4 and you have to buy a replacement board or CPU,
consider upgrading to a current gen CPU (i3/i5/i7 for Intel, for
instance).
Current CPUs should be faster while consuming a little less power.

Just about anything else and you'd get a BIOS beep code to indicate the
error.