LisaList2

Anyone installing cooling fans or heat sinks? If so...

Fans:

Where?
Power?

Heat sync

On what?
What size?

Quote from: bmwcyclist on February 26, 2025, 08:14:17 PM
cooling fans...

If you have a 16 or 18 MHz XLerator, you will almost certainly need something like the card cage cooling fan it was sold with. The Sapient motherboards are designed with a mounting location for such a fan, but you probably don't have one of those.

Adding a fan to cool the PSU makes a big difference in longevity in my experience. You can add it inside the PSU, or eg. on a chimney above it at the back.

Back in the day that hard drives were installed above the floppy drive, a fan was sometimes required depending on the drive.

I'll look for pictures if someone else doesn't have them handy.

Are there any plans or photos for the card cage with fan?

Quote from: bmwcyclist on February 27, 2025, 11:22:29 AM
Are there any plans or photos for the card cage with fan?

I'll find a photo or take one. The manual in the XLFan Manual topic has the connection info. I think the original XLerator manual has that info too.

There is a pic of the Sapient motherboard with fan installed in one of James Denton's blog posts: This Old Lisa: Hands-on With the Sapient Technologies Lisa 1 & 2/5 Motherboard.

edit: pics have been added to the XLFan Manual topic.

Power Supply fan examples... crude and not so.

Since the PSU was designed for convection cooling, it doesn't take much airflow to cool it well. A quiet low performance fan is usually sufficient.

If you open the PSU, beware of potentially dangerous voltages that remain for a while after it is unplugged (regardless of whether it has been on or off). Leaving it unplugged for a few hours before opening it is usually sufficient to dissipate the danger, but regardless: open it at your own risk!