Re: Power Supply?

[Tom Jedrzejewicz <tomjedrz@xxxxxxxxxxxxxx>]

On Mon, Nov 8, 2010 at 11:00 AM, Chuck Lewis
<chuck.lewis@xxxxxxxxxxxxxxxxx>wrote:

> 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!

I have a little ($30) compressor I use for inflating tires and air beds,
etc.  I find it to work MUCH better than the cans of air for cleaning dust
out of equipment.  Absolutely it should be done outside.

Does anyone have experience using a vacuum cleaner for this?  Is it
effective?  It would be nice to be able to do this cleaning well without
making a mess.

---------
Tom Jedrzejewicz
tomjedrz@xxxxxxxxxxxxxx



> 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.
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