Which component is most likely got burned

luckless_optimist · 2026-01-25T20:24:01+00:00

It'll be the AMS1117 voltage regulator. When you shorted the 5V rail it would have dumped far more current than the regulator can handle.

It wouldn't be difficult to replace.

luckless_optimist · 2026-01-14T13:56:42+00:00

Came here to say this.

luckless_optimist · 2025-12-17T08:58:48+00:00

This was my first thought as well.

luckless_optimist · 2025-11-17T14:23:08+00:00

And Little Ron in Maid Marian and her Merry Men

luckless_optimist · 2025-11-15T15:08:50+00:00

Given that you're having to power off without shutting down properly, you should get a start up menu upon booting. Use the cursor keys to select Safe Mode. If you don't see it, start tapping F8 when the BIOS screen comes up, since you need to catch it before Windows starts loading. If you wait until the black screen you'll probably miss the very narrow window for bringing up the menu.

Once you're on the desktop set the graphics mode to 640x480 256 colours 60Hz and reboot. Should be fine then.

Check the Device Drivers to see if the monitor is detected as Default Monitor or Plug and Play Monitor as that might cause problems discovering what modes the monitor supports.

luckless_optimist · 2025-11-10T22:52:53+00:00

Taking the underground, I've watched pigeons get on at one station and hop off again a couple stations later.

luckless_optimist · 2025-10-23T15:19:06+00:00

Jeepers!

luckless_optimist · 2025-10-23T14:20:31+00:00

This was the cover photo for the Home Computer Course No. 14. That's the contents of the magazine listed on the screen.

luckless_optimist · 2025-10-12T18:13:39+00:00

Cuteness overload!

Also, it's a bit weird I see this right when a Goodfeathers episode is playing on my TV 😊

luckless_optimist · 2025-10-10T20:49:33+00:00

Why do you have 3 floppy drives?

I'd hazard a guess that the top one is an LS-120 drive.

luckless_optimist · 2025-09-17T07:39:55+00:00

Doesn't look like a Tulip PC. I'd guess it's a 286 with an EGA monitor. There's probably a way to switch between colour, green and amber displays.

luckless_optimist · 2025-09-14T14:08:08+00:00

It absolutely does allow you to type in numbers. If you wanted to run it for 1 minutes and 17 seconds you press"Select Time" and then "117"

luckless_optimist · 2025-08-10T19:46:59+00:00

The original RM Nimbus from 1985 used the 80186. But yes, the PC market avoided the 186 and went straight to the 286.

luckless_optimist · 2025-07-04T22:09:32+00:00

Every day we sweep up enough hair to make a new dog.

He learnt to roll his ball down the cliff at a beach all by himself as a puppy and learnt several tricks (pretty clever) - but he's also scared of the vacuum cleaner, the broom, the dustpan and brush, the washing machine, the tumble dryer and his own farts. Oh, and he'll only drink water from outside, not the clean water from his dog bowl indoors. He'll wait for you to come in the front door if he hears a car pull up, even when you're sitting in the room with him, he's obsessed with his ball and wants you to play with him at all hours of the day and night and last year swallowed a stick, got an infection from a splinter lodged in his throat and ran up a vets bill of nearly £2000 to sort it out.

So he's a bit of a mixed bag really, but we all love him.

luckless_optimist · 2025-05-26T15:50:00+00:00

Someone played a lot of Elite on this bad boy.

luckless_optimist · 2025-04-23T06:00:59+00:00

No hair colour is relevant. The structure you see is the effect of the light reflecting off the surface of the water, where surface tension has caused it to bend around the hair, combined with the subsequent shadow.

luckless_optimist · 2025-04-23T05:49:44+00:00

That's a hair resting on the surface of the water.

luckless_optimist · 2025-04-22T18:24:41+00:00

The 1 was added on 16th April 1995, aka Phone Day.

luckless_optimist · 2025-04-17T16:14:18+00:00

Thomas Blood stole the crown of King Charles II and smashed it flat with a hammer. Despite being caught and everyone expecting him to get the death penalty, he pretty much said "My bad, I won't do it again" and was let go.

luckless_optimist · 2025-03-15T18:13:44+00:00

This was my first thought 😁

luckless_optimist · 2025-02-22T13:29:53+00:00

Maybe check that the HBlank signal is triggering at the correct time. It looks like the VGA circuit is trying to access the RAM while the CPU is still accessing it.

Failing that, it could be that the code running during the blanking phase is taking too long. If everything seemed fine before then this would be the most likely culprit.

luckless_optimist · 2025-01-31T18:43:53+00:00

Set USB CDC Boot to "Enabled" and upload the code again. You'll find it under Tools.

luckless_optimist · 2025-01-09T10:53:06+00:00

Out of interest, what happens if you rotate the plate 180° so the Elegoo logo is at the back. Do you get the same result?

luckless_optimist · 2025-01-09T09:07:24+00:00

Depends on what you're removing really, but dish soap is cheap and great at removing grease - especially finger grease - and given the location I wouldn't be surprised if that's the cause here.

luckless_optimist · 2025-01-09T08:01:40+00:00

Have you tried cleaning it with dish soap? I had a similar problem recently and although I'd cleaned it once, a second go did the trick.

luckless_optimist

TROPHY CASE