@Beachcomber :-
It might be mid-week before I make the attempt on the fan. I'm terrified I'm going to break it, so I'm just trying to get some things done first!
Heh. Nah, you've nowt to worry about, lass. Computers are nowhere near as fragile as some folk like to make out.
You sound about like me, the first time I ever opened up our ancient Dell laptop, 18 years ago, to upgrade the memory (one of the simplest tasks there is).
I'd read I don't know how many different articles on various different fora and bulletin boards, and they were full of folks recommending you pay a "professional" to do it for you. "Oh, you'll brick it". "Such and such will break as soon as you look at it". Yes, I was consequently a bit concerned that I might do some damage.......yet on other fora, folks kept saying "It's a 2-minute job. A 3-yr old could do it". "It's SO simple. You CAN'T go wrong..."
Anyways. After a ton of research, I eventually ordered the correct RAM kit I wanted. When it turned up, I flipped the Dell over, and sat there for a few minutes, looking at it.....'psyching myself up', as it were. I had one single screw to remove, and a small cover to take off. But - like you! - I kept inventing reasons not to pick the screwdriver up....."I need to do this first". "Such and such needs doing..."
(Oh, jeez. I'm looking back at this now, with the benefit of almost two decades of hindsight.....and ya know what? I am p**sing myself laughing.....yet at the time - because I'd never done anything like this before, and in spite of being "tech-savvy" - I was being SUPER cautious.)
Eventually, I plucked up the courage, and picked up that screwdriver. Two minutes later....job done. And almost immediately, I thought to myself, "Well, that wasn't so bad. What WERE ya making such a fuss over..?"
When she fired-up after plugging-in and powering-on, and the BIOS immediately said the RAM had been changed, and told me the new amount.....I knew I was home & dry. There HAD been nowt to worry about.
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In the intervening years, I've lost track of the amount of internal hardware I've replaced/upgraded (including CPUs/GPUs/heatsinks/hard drives/optical drives/RAM (over & over, again & again)). Computer hardware is all highly modular, and is normally made to exacting tolerances/measurements/technical specifications & requirements. Which all makes it real easy for the likes of me & thee to do maintenance or upgrade work on our own machines. You don't NEED to pay thru the nose for someone else to do it. You're every bit as capable as they are; all you lack is experience.
Once you've got the first couple of small upgrades/replacements/repairs under your belt, you'll wonder what all the hoo-ha was about.
It's NOT "rocket science". It's probably simpler than car maintenance, if the truth be known.
Mike.
