McGarrah Technical Blog

Posts tagged with "repair"

Diagnosing a broken microwave

My relatively new microwave just stopped heating things for no apparent reason one morning. We bought it a couple years back (about 3 years ago), so I was not happy as I expect these to work awhile with several working for ten (10) plus years. We picked up a new one from the local white box retailer as we wanted a replacement quickly. But my wife while digging around on Youtube found Microwave works but wont heat - Cheap and easy fix which was exactly what we experienced.

That video said it was likely a fuse or diode which are both cheap enough that they are worth an attempt at fixing. That will give me an extra microwave for the kids to use upstairs if I can fix it and save some landfill space.

fuse diode
Fuse Diode

Dell Wyse 3040 CMOS CR2032 Battery Replacement

I have collected nine (9) mostly functional Dell Wyse 3040 thin clients for use in my experimentation with Proxmox Clusters and SDN and Site-2-Site VPN configurations with Tailscale. Yes, I know I have a problem. :)

Dell Wyse 3040 with bad cmos battery

On the upside, they are very small low power consuming Debian 12 servers that have a 1Gbps NIC and run headless nicely once you fix the BIOS settings and Debian configuration correctly. What is not nice is their CMOS batteries are all mostly dying on me and their connector is a odd type that is not supported by many vendors and are between $8-$12 USD to replace. For example the Rome Tech CR2032 CMOS BIOS Battery for Dell Wyse 3040 is about $9.89 USD as of posting this. This bothers me intensely as the actual CR2032 can be picked up for well under a dollar ($1 USD) each at LiCB CR2032 3V Lithium Battery(10-pack) for a pack of 10 for $6 USD. Also, I’m picking these units up with power adapter for between $20 and $45 on eBay and the $10 bite jacks my price per unit up a good bit. So what to do?