RM One Power Supplies

[crc-ict]

For our sins we have a large number of RM One machines in our school - they are the V2 type not the very old ones and not the new type:
ecoquiet.jpg

They are all around 4-5 years old now out of warranty and we are having problems with dying power supplies.

The PSUs are a standard micro-ATX/SFX type supply but with much longer cables than usual - generic size-compatible replacements don't have long enough leads.

We have been advised by RM that replacement PSUs are no longer available and so we are looking at alternatives to keep our machines working - we can't afford to replace them all.

I was wondering if anyone else had encountered this problem and if they had found a solution? At the moment I am thinking about generic PSUs and extension cables but it's not going to be pretty.

Any ideas?

Cheers
Chris

[Squelch]

Did you get anywhere with this? I'm considering extension cables too..

[3s-gtech]

You can get ATX cable extensions, for the 20/24 pin and 4 pin connectors, and they're pretty cheap. I used some when building a server with a very large case.

[crc-ict]

We got hold of some micro-atx power supplies and extensions for the various power leads and they work passably well. However, the supplies we got don't fit the case recesses perfectly due to slightly different alignment of the mains input socket and the extra connectors involved in using the extension leads make fitting all back together something of a challenge. Also, we didn't try to replace the very long lead going to the CD and FDD bays - our machines don't have either of these drives installed.

So in short, it worked, but its a bit of a fudge and is quite a lot of effort - you will need to be familiar with how the RM One goes together (and comes apart!) and be prepared for some frustration!

[Squelch]

Been there, got the cut fingers to prove it

Thanks for the replies.

[rad]

Remove back 4 security screw
Remove side panel for CD drive (2 screws)
Remove top 4 screws for top panel
Remove the top screw of RHS panel
Undo 2 screws holding PSU in place
Remove all PSU connectors from MB (x2), HDD, CD Drive (if installed) and FDD.
FDD is located over the top of the MB and cable tied above CD panel
Remove PSU and then undo the connector to the monitor power....

If that doesnt make sense... PM me! I have done 4 so far!