c/computer-technicians

Rant: Intel stock coolers were garbage 10 years ago and they're still garbage today

I replaced a client's i7-7700 stock cooler with a $25 Hyper 212 last Wednesday and their idle temps dropped from 55C to 32C. Same thermal paste, same case airflow, just a different hunk of aluminum and copper. How are first-party coolers still this bad in 2024 when aftermarket options cost less than a pizza?

Wasted $120 on a 'certified' data recovery tool that was just a wrapper

Bought this tool from a shady site last year that claimed it could recover drives with bad sectors, turned out it was just a GUI for a free open source program. Lost two hours and got nothing back because the drive was already too far gone by then. Anyone else get burned by one of those rebranded utilities?

Took me 4 hours to find a loose ground pin on a power supply

Had a Dell Optiplex 7040 that would randomly shut off. Checked drivers, swapped RAM, even reflowed the board. Turns out one of the pins on the 24-pin connector was slightly bent and not making contact. Three days of headache for something I couldve spotted in 5 minutes if I had just looked closer. Anyone else waste time on dumb power issues?

Used a thermal camera vs manual temp checks for server room hotspots

I was troubleshooting an overheating rack in a client's office downtown last month. They had me using a handheld thermometer to check intake temps one by one. After 45 minutes of climbing and squatting, I borrowed their Flir camera for 10 seconds. The camera showed me exactly where the cold aisle was failing near the floor vents. Has anyone else found these things worth the investment for bigger jobs?

Old Dell from 2002 still running in a dentist's office I serviced today

Went to swap out a dead monitor at a local practice here in Buffalo. The receptionist boots up their scheduling system on this dusty old OptiPlex and it still has Windows 2000. She said it never broke so they never replaced it. Made me think about how we used to build stuff that just ran forever. Now I'm swapping laptops every 3 years for clients. Anyone else see older gear still kicking in weird places?

Hot take: The Geek Squad at my local Best Buy in Austin actually helped me save $200

Went in last Saturday with a busted power supply on my home server. Everyone online says avoid them like the plague, but the guy at the counter spent 15 minutes walking me through diagnosing it. He didn't try to upsell me on a whole new machine, just pointed me to the right part on the shelf. Has anyone else had a good experience at a big box repair counter, or was this just a fluke?

Overheard a junior tech say SSDs don't fail and it bugged me all day

I was at Micro Center last Tuesday grabbing thermal paste and heard some kid telling his friend that SSDs are basically indestructible compared to HDDs. Made me think about how many people I've seen lose everything because they treated their boot drive like it was invincible. Had a client last year whose Samsung 860 Evo just up and died after 3 years, no warning, no SMART errors beforehand. Now I always tell my customers to mirror important data to another drive even if they use SSDs. Do you guys still push backups for SSD-only builds or is that overkill for most people?

Rant: That moment my multimeter battery died mid-diagnosis at the worst time

Last Tuesday I was on a service call in a basement off Maple Avenue, tracking down a short on a 3-year-old HP desktop. I was about to check the PSU rail voltages and my Fluke 115 screen just went blank. Took me 20 minutes to find a CR2032 in my bag, and by then the client was hovering asking if I was done yet. Has anyone else had a cheap tool fail right when you needed it most?

The shop I sub for has a 3-ticket minimum that's killing small jobs

I do overflow work for a break-fix shop in Tacoma. Last month a guy came in with a 2012 laptop that just needed a fan replacement. Simple 20 minute job. They told him it would be $180 because of the ticket minimum. He walked. I get that they don't want to tie up a bench for nothing, but we're turning away easy money. Has anyone else dealt with a shop that has a policy like this?

Why does nobody warn you about static discharge on server racks?

I was installing a new drive in a Dell PowerEdge last week and touched the chassis frame, got a shock that locked up the whole system. Turns out the floor mat wasn't grounded properly, and I fried the backplane. Has anyone else had a build fail because of a basic grounding issue?

Hit 1,000 motherboard repairs and one number stood out

I keep a log of every board I work on and just passed 1,000 repairs last week. What surprised me was that 317 of them had bad capacitors near the CPU socket. That is nearly a third of all failures tied to one common part. Has anyone else tracked their most frequent fix? I am curious if your numbers line up with mine.

Thermal paste job went way different than expected

Built a new rig for a client last week. i7-14700K with a Noctua NH-D15. Used the pea method like always. Idle temps dropped from 42C to 29C after I reapplied it with the spread method instead. Anyone else see a 10+ degree difference just from changing how you apply?

Senior tech told me I was using the wrong screwdriver for PSU cables and it clicked

Ive been building and fixing computers for like 4 years now on the side, mostly friends and family stuff. Last month a guy I know who worked at a repair shop for 15 years watched me swapping a power supply in an old Dell Optiplex. I was using a #2 Phillips like I always do and he just goes "youre gonna strip that connector" and handed me a #1 Phillips. Turns out those little PSU terminal screws are way smaller than I thought. I had been muscling them in wrong for years without realizing it. Now I keep a set of small precision screwdrivers separate from my main kit and actually check the fit before I turn. Has anyone else been using the wrong size bit and never noticed until someone called them out?

A senior tech told me I was using too much thermal paste and it changed how I do CPU builds

A senior tech told me I was using too much thermal paste and it changed how I do CPU builds. He showed me that a pea-sized dab is plenty, and now I don't have the mess or risk of paste seeping onto the socket. Have you ever had a hard lesson on something you thought you knew well?

Bought a $200 diagnostic tool that only works on 2010-2015 Honda Civics

I grabbed this fancy OBD2 scanner off some dude's Facebook Marketplace listing last month, figured it was a steal for the price. Turns out the thing is locked to one car model and one year range, so it's completely useless for 90% of the laptops I work on. Anyone else get burned by a niche tool that looked good on paper but flopped in practice?

Spent $45 on a used UPS and it saved my client's server last week

Found an old APC unit at a pawn shop for $45. Replaced the battery and put it in a client's home office. Lightning hit their transformer Friday and everything else fried but their machine kept running. Anyone else had good luck with second hand UPS units?

PSA: Tried a new thermal paste application method on a gaming PC and it caused a 10 degree Celsius temp spike

Just had a $500 motherboard fry because a client INSISTED on using their old power supply

Showerthought: I cleaned a gaming PC with a paintbrush and it worked better than my usual method.

Had a client bring in a system so clogged with dust it looked like a pet. My compressed air can was empty, so I grabbed a clean, soft paintbrush from my car. I gently brushed the heatsink and fans, and the dust came off in big clumps without flying everywhere. It was quieter and I didn't have to worry about spinning the fans too fast. Has anyone else used a weird tool that actually worked out okay?

A client's 'simple fix' for a noisy server fan cost me a whole afternoon

A business owner I work with in Milwaukee told me to just unplug the loud fan on his old Dell PowerEdge 2950, saying it was extra. I did it to be nice, and the server overheated and shut down after about two hours. I had to go back, put the fan in, and explain why all the fans are needed. Has anyone else had a client push a bad hardware fix that backfired?

Hot take: I started using a $15 thermal camera attachment for my phone on every intake check

Before, I'd just look for dust or listen for fans, but now I spot overheating VRMs and failing drives in seconds (like a 2 degree hotspot on a motherboard last Tuesday). Anyone else found a cheap tool that changed their diagnostic game?

PSA: I used to rely on a bootable USB for every Windows install, but now I just use the network.

After a job in Austin last month where three different flash drives failed on me, I switched to PXE booting from a local server. It saves me maybe 15 minutes per machine and I never worry about corrupted media anymore. Has anyone else made that jump, or is it still too much setup for a small shop?

Had a client's server room flood from a burst pipe in the ceiling last Thursday, and the backup power unit shorted out before the auto-shutdown could kick in.

We had to pull the main drives from three rack units, dry them with a data recovery kit, and cross our fingers for about six hours before we knew if the client's quarterly reports were safe.

Honestly, the way people treat old thermal paste drives me nuts

I see techs all the time saying you should always replace the thermal paste on any machine you open, even if it's just for a quick clean. Tbh, that's a huge waste of time and money if the paste is still good. I've pulled apart hundreds of office PCs from the early 2010s, and the factory paste is often still fine after a decade if the system wasn't running hot. I tested this on a batch of 30 Dell Optiplex 9020s from a local school. I cleaned the dust, left the old paste, and ran a stress test. Every single one stayed under 75C. Re-pasting all of them would have added over an hour to the job for zero gain. When do you actually need to replace it? Only if it's dried out, cracked, or the temps are bad. Has anyone else found they're re-pasting way less than the common advice says?

Question about those cheap thermal paste syringes from the discount bin

I thought they were junk until I used one on a 10-year-old office PC in Phoenix last week and it dropped the CPU temp by 18 degrees, so has anyone else had a good result with a no-name brand?