c/computer-technicians

A retired electrician changed how I handle surge protectors

I had a job last Thursday where a client's new PC kept tripping the breaker. I was about to blame the power supply, but the old electrician who was there for the panel looked over and said 'your equipment is fine, it's the shared neutral causing the spike.' He walked me through how induction from other circuits can mess with sensitive gear. I always assumed surges came from outside, not from inside the building. Has anyone else found that internal wiring issues are more common than actual lightning strikes in residential work?

Had to pick between cloud backup and local NAS for a client, went with the NAS

Last week I had a small law office client whose old external drive finally gave up. They needed file protection but their internet is spotty out in the suburbs near Austin, so cloud-only backups scared me. I went with a 2-bay Synology NAS instead, set it to mirror nightly, and added a USB copy for extra safety. It took about 4 hours to migrate everything and teach them the basics, but the local speed for recovery sold me. Has anyone else faced this call for small offices where cloud latency just kills the deal?

Old floppy disk trick still saves me on stubborn firmware updates

Had a client with a 2012 POS system that wouldn't take a BIOS update from USB, no matter how I formatted the drive. Tried three different sticks, even a CD-RW, and nothing. Remembered the old DOS days and dug out a 1.44MB floppy from my parts bin, wrote the update with a USB floppy drive... worked first try. Anyone else keep legacy gear around for these weird corner cases, or am I just a hoarder with a label maker?

A senior tech told me I was wasting time cleaning thermal paste with isopropyl and a rag

He showed me how using a coffee filter and a drop of lighter fluid gets it off way faster with no lint left behind. Tried it last week on a crusty old HP laptop and it worked way better than my old method. Anyone else got weird little tricks like that for routine stuff?

My $60 external enclosure killed 3 hard drives before I caught on

Bought some cheap Sabrent enclosure off Amazon because I needed to pull data from an old laptop drive. Took out 3 drives across 2 months before a buddy tested the voltages and found it was pumping 13v down the 5v rail. Anyone else run into a shady enclosure that killed their gear?

Finally figured out why my thermal paste jobs kept failing after 6 years

Just noticed techs reinstalling Windows for driver issues they could fix in 10 minutes

I was at a shop last Tuesday helping a guy with a Dell Latitude that had no WiFi after a update. He was about to nuke the whole OS when I just rolled back the driver in Device Manager and it worked fine. I swear half the people in this field jump straight to reinstalling when a simple driver fix or a quick sfc /scannow would do the job. Why waste 2 hours when you can check the event logs first? Has anyone else seen this shortcut causing more work than it saves?

Finaly got a stubborn HP printer network issue sorted after 3 days

I was at a client's house in Oak Park last week, a small law office setup. Their HP LaserJet would drop off the network every 45 minutes and I pulled my hair out swapping drivers and cables. Turned out the router's DHCP lease time was set to 30 minutes and the printer's firmware was too old to renew it automatically. Has anyone else run into printers that just refuse to play nice with modern routers like this?

Found an old Windows 95 machine at a garage sale last Sunday

I picked up a Compaq Presario from a guy in my neighborhood for $20. It still had the original Windows 95 install and a 28.8k modem inside. Got it home and spent an hour just watching the startup chime and that old green cursor blink. Made me think about how different basic troubleshooting was back then without the internet in your pocket. Anyone else stumble on old hardware and feel a little lost trying to remember the old fixes?

Told myself I'd never use a label maker for cable management

Hit 50 labeled patch cables in the server room today and I gotta admit, it made tracing a bad line take 2 minutes instead of 20. Anybody else cave on something they swore was overkill?

Heard a younger tech say "drivers are for people who can't fix hardware" and it stuck with me

I was working a side gig at a school last week and this kid maybe 22 years old was bragging about never installing a driver in his life. Said if the hardware doesn't work out of the box it's junk. I just laughed and kept imaging a fresh Windows install on a Dell without the chipset drivers. Has anyone else run into this kind of thinking with the new guys coming in? Whats the weirdest thing you've heard a younger tech say?

That expensive fluke multimeter finally paid for itself today

I spent $180 on a Fluke 117 multimeter back in 2019 and honestly felt stupid for dropping that much. My old $30 one worked fine for basic stuff. But today I had a weird power issue on a server PSU where voltages were all over the place. My cheap meter was giving wild readings and I couldn't trust it. Pulled out the Fluke and it showed a clean voltage drop right away. Turned out to be a bad capacitor on the input filter board. That one find saved me from replacing a $1,200 power supply. The build quality and reliability of a nicer meter really shows when you're troubleshooting something tricky. Anyone else have a tool purchase that felt like too much at first but proved its worth later?

Guy at the repair shop told me to just reflow the GPU instead of replacing it, saved me $250

I was ready to toss my whole rig after the screen started glitching, but some old-timer at a local shop in Austin said try the oven trick for 9 minutes at 385, and it's been running fine for 3 weeks now, has anyone else actually had that work long term?

Question about weird USB boot issue on HP ProDesk 400 G4

I swapped a client's old hard drive for a new SSD in an HP ProDesk 400 G4, but it refuses to boot from a USB drive no matter what I try. Tried all three USB ports, disabled secure boot, even reset the BIOS to defaults. Anybody run into these HP BIOS quirks before or am I missing something obvious?

Just figured out a quick fix for sticky laptop hinges

Had a Dell Latitude come in last month where the hinge was so stiff it was cracking the plastic around the screen. I was about to order a whole new lid assembly, but someone on another forum suggested using a tiny drop of PTFE lubricant (the stuff for bike chains) right where the hinge meets the bracket. Worked like a charm, hinge moves smooth now and no more cracking. Has anyone else tried this instead of replacing the whole hinge assembly?

TIL swapping thermal paste dropped my CPU temps by 12 degrees

I built my PC about 3 years ago and used the stock paste that came with my cooler. Last week I finally swapped it out for some Arctic MX-6 I grabbed for $8 at Micro Center in Austin. After running Cinebench, my max temp went from 82C to 70C on my Ryzen 5 3600. I didn't think it would make that big of a difference honestly. Has anyone else seen that kind of drop just from a paste swap, or did I just mess up the first application?

Rant: Hitting 500 dead pixels in one shift made me question everything

I work at a shop in Austin that does a lot of LCD screen repairs. Last Tuesday I counted 500 dead pixels across 4 monitors that came in from a single office. That number blew my mind because I usually see maybe 50 in a week. It made me realize how many people just ignore bad screens until they get a head ache. Honestly I think most folks would benefit from a cheap pixel tester before they buy used gear. Has anyone else run into a crazy batch of failures like that?

3 years ago I dropped a screwdriver into a running server fan...

Back in July 2021 at a small office in Austin, I was swapping out a failed power supply on their Dell PowerEdge. Somehow my #2 Phillips slipped right through the top grill and got chewed up by the rear exhaust fan. It made this horrible grinding sound for two seconds before the whole thing shut down. Anyone else ever drop something into a live machine and have to explain it to the client?

Figured out why that one office kept getting DNS errors... it was an old printer all along

Rant: I used to swear by paper service logs for every repair

For like 10 years I kept a spiral notebook on my bench, writing down every drive model and failure code by hand. Then last month I went full digital with a shared cloud spreadsheet because the shop owner kept losing my notes. Does anyone else feel like the old paper method was actually faster for quick lookups?

Just read that thermal paste actually degrades faster in dusty environments

Read it on a Puget Systems blog after my 6 month old build started running 10 degrees hotter, turns out the dust in my fire station wasn't just clogging fans but messing with the paste itself, has anyone else seen temps spike from dust related paste breakdown?

Had to pick between a used Dell and building my own for a client's budget build

Guy came in last week with $400 to spend on a PC for his kid to do schoolwork and light gaming. I was torn between grabbing a refurbed Optiplex off eBay or piecing together a new Ryzen build from scratch. Ended up going with a used Dell Precision from a local recycler for $150 and threw in a GTX 1650 I had laying around. Booted up first try but the kid's already asking about upgrading the PSU. Anyone else deal with clients who want more performance than their budget allows?

Old IT guy told me to stop using compressed air on fans and he was right

Had a senior tech at my shop in Austin tell me canned air just pushes dust deeper into the bearings. I figured he was just being picky. After I killed a client's CPU fan on a Dell Optiplex 7050 last month, I swapped to a brush and vacuum method. Anyone else switched away from the air cans for good?

I finally had a day where every repair I touched went smoothly

Last Thursday was weird. I had 7 machines come in - 3 laptops, 2 desktops, a MacBook, and an old HP all-in-one. Every single one was a simple fix. One had a loose RAM stick, one just needed a drive re-seat, the MacBook had a swollen battery that popped out clean. I was done by 2pm and my shop in Phoenix was dead quiet after. Usually I get at least one cursed machine that fights me for hours. Has anyone else ever had a day like that where everything just worked out right?

Two hours on a phantom network issue that turned out to be a cable tie

Spent a whole afternoon last Tuesday chasing a network dropout for a client's office in Denver. Every device would lose connection for exactly 30 seconds every hour or so. Checked the switch logs, ran ping tests, swapped out a patch cable, even updated the firmware on the router. After two hours I finally looked behind the desk and saw a cable tie cinched way too tight around the main Cat6 run. It was pinching the cable just enough to cause intermittent packet loss when the heat kicked on and the office settled. Felt like an idiot but also kind of pissed that something so dumb could chew up that much time. Has anyone else wasted a day on a fix that simple? What's your go to first thing you check now after getting burned?