c/computer-technicians

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?

Why I stopped using thermal paste from big box stores after a job in Phoenix

I used to grab thermal paste from whatever store was closest. Then I did a rebuild on a gaming rig last July in Phoenix where temps hit 115 outside. The paste dried out in under 6 months and the CPU started throttling bad. Customer came back mad and I had to redo the whole thing for free. Now I only buy from specialized online shops that ship in temperature controlled packaging. Has anyone else had paste fail faster in hot climates?

Walked into a client's server room and found a full fishtank on top of the rack

I was doing a site visit for a small law firm in Austin last month and their IT guy proudly showed me his 20 gallon community tank sitting right on the UPS units. Has anyone else run into random non-IT stuff stored in server rooms like that?

I used to obsess over cable management, now I just use zip ties and move on

Back when I started doing PC builds and server work about 5 years ago, I would spend hours making every single cable perfect. I'm talking velcro straps every 2 inches, routing behind motherboard trays, the whole deal. Then I got a job at a local repair shop in Austin where we had to swap drives in and out of a rack system. My boss just grabbed a handful of zip ties, bundled everything loose, and said "it's not a beauty contest, it's a box." That changed my whole view. Now I focus on airflow zones and keeping cables out of fan blades, but I stopped caring if the back panel is a mess. Has anyone else had that moment where they realized perfect cable management was a waste of time for most jobs?

Had to explain to a client why their 'new' server from Facebook Marketplace was a bad idea

Drove 45 minutes to a real estate office last Tuesday to find a dented Dell PowerEdge with mismatched RAM that the owner swore was a steal for $300, and I spent an hour showing them why they'd spend triple that fixing it in six months.

Drove myself crazy for 8 hours over a loose power cable

I spent an entire shift tracking down a network dropout that turned out to be a SATA power connector barely touching the drive. Has anyone else chased a ghost for way too long only to find the simplest fix?

Two years of wrestling with tangled cables before a coworker showed me a simple trick

I used to spend 20 minutes every morning untangling cables behind my desk at work. A guy from the IT department walked by and asked why I didn't just tie a loose overhand knot in each cord near the plug end. He said it stops cables from twisting around each other when you move equipment around. I tried it on my monitor and keyboard cables and it cut my setup time to under 5 minutes. Now I do it on every cable I own. Has anyone else found small changes like this that save time in the shop?

Took me 6 hours to find a bad RAM stick that passed every diagnostic tool I had

I was chasing random blue screens on a Dell OptiPlex for days, swapped the PSU and motherboard before I finally tried pulling each stick one by one, and it turned out to be a single faulty module that Memtest86 and Windows Memory Diagnostic both said was fine, has anyone else had RAM that passed every test but still caused crashes?

Warning: I spent 3 months using thermal paste from a repackaged tube and ruined a build

I used to buy those cheap multi-pack thermal paste tubes on Amazon since they were like $8 for 5. Last week I pulled apart a customer's gaming PC that kept overheating and found one of those tubes had separated into liquid and chunks. Turns out the stuff was repackaged from some bulk factory and had no quality control. I tested two builds side by side with Arctic MX-6 vs the cheap stuff and saw a 12 degree difference under load. The cheap paste literally dried out after 6 months. Has anyone else run into fake or expired thermal paste from those multi-pack deals?

Blew $180 on a logic analyzer I barely touch now

I bought a Saleae clone off Amazon thinking I'd use it all the time for debugging serial protocols, but it's just been sitting in my drawer for six months collecting dust. The software was clunky and I ended up just using a multimeter and oscilloscope for 90% of what I needed. Anyone else have a tool they convinced themselves they needed but never actually use on the job?

Had a client tell me my diagnostic fee was 'too steep' so I broke down my thought process for them

Crimping Ethernet cables wrong has been costing me hours of rework this month

I kept getting intermittent dropouts on a 200 foot run and finally traced it to my RJ45 crimps not fully seating the wire pairs, so double check your pass-through connectors before you staple everything down, anyone else had this bite them after the fact?

A client's blunt feedback made me ditch thermal paste spreading for the pea method

I used to spread thermal paste manually with a card, thinking it gave better coverage. Then a guy named Mike in Denver told me my Ryzen 5900X was running 5 degrees hotter than his with the same cooler. He showed me his temps after using a pea-sized drop in the center, and I tested it on my own rig - dropped from 82C to 76C under load. Anyone else have a customer call you out on something that actually improved your work?

Maybe unpopular but I refuse to use thermal paste spreaders

I keep seeing people online say you have to spread thermal paste with a little plastic card or tool to get even coverage. After 12 years doing PC builds and repairs, I still just use the pea method. A dot in the middle, press the cooler down, let it spread naturally. I tried the spreader method twice and actually got worse temps both times. One build for a customer in Portland had a 5 degree difference favoring the pea drop. Maybe it matters for liquid metal or super high end chips, but for 95% of builds I think people are overthinking it. Has anyone else tested both ways and found the spreader actually helps?

Caught a bad PSU before it fried a client's RAID array

I had a server in for a routine clean and noticed the 12v rail was sitting at 11.4 under load. The guy said he'd been getting random read errors for about 2 weeks. Anyone else seen a failing power supply cause phantom drive issues like that?

Found an old CRT monitor at a thrift store that actually worked

I stopped by a Goodwill out in the suburbs last weekend and saw a 17-inch Dell CRT sitting on the shelf for 15 bucks. Thought it would be dead or have some crazy flyback whine, but I plugged it in and it fired right up with no issues. Ran a quick geometry test and the colors were surprisingly solid, no burn-in even. I ended up buying it just to mess around with retro gaming stuff, mostly because I've been curious about low-latency setups. Has anyone else had luck finding old hardware like that in random places?

Client's laptop died mid-warranty call, had to fake a solution

Got a call last week from a guy whose screen went black after a Windows update. I was walking him through safe mode when his battery died and the call dropped. He called back 10 minutes later saying I 'fixed it' because the reboot worked. I told him sure, that was the plan. Ever had a problem just vanish and you take the credit like you meant to do that?