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Like this, all of the pins are shared except CS (Chip Select). Front and back for sure and maybe even left to right For more info: https://ece-research.unm.edu/jimp/310/slides/8086_memory2.html

Pretty easy, all of the pins except 1 should ohm out to the chip in front of it.

Look, I found N.O.S Maxell, looks like it might work my IIFX or a newly created SE logic board: https://www.diytrade.com/china/pd/15028592/Maxell_3_6V_1_2_AA_Lithium_thionyl_chloride_battery_ER3.html

It's basically just a lacquer, not a problem. IF that's what you want to use go for it.

I found a bad speaker once. To anyone reading this in the future, I'd suggest ohming out the speaker before proceeding further.

4 Options I use: 1. Tin the bare copper 2. Nail polish works good 3. Insulating varnish: https://www.amazon.com/MG-Chemicals-GLPT-Insulating-Varnish/dp/B00S4H8V1Q 4. Green conformal coating pen: https://www.all-spec.com/Product/419D-P-GR-33018

Then, Maybe something like this to convert the MDA:

This would be a start:

No, you only need to replace the electrolytics. Anyhow, looks like a ram problem to me. In my opinion you need to check everything for continuity, pins and traces around the ram.

Start by putting it in the dishwasher and dry in your oven @ 170f for 4 hours. I bet there's electrolyte under the ram chips

I'm sorry I meant 7.6.1, I can't edit that. Yeah it's like 20 disks, a big pain. You might also be interested to know that Mac os 8 was originally going to be Mac OS 7.7: https://apple.fandom.com/wiki/Mac_OS_7.7

I'm not surprised, I once installed 7.5 on one. I wonder if there is a away to reign in ram usage, have you paired down extensions and control panels?

Comparing a Mac SE to a Color Classic is not a good idea for a variety of reasons.

You can probably fix that board but if you can afford it I'd suggest finding an original board like this: https://www.ebay.com/itm/Very-Rare-Original-Macintosh-II-Motherboard-820-0163-03-Ships-Worldwide/193715932365?hash=item2d1a5e8ccd:g:WDIAAOSwi~9fT38u These original boards use all Axial caps...

In that case he is most likely talking about black and white compact macs. In a color crt mac the voltages involved are much higher, the answer is yes. But with that being said you can probably replace the fan with one that is both of higher cfm and quieter.

This is pretty typical, I'm just thankful it saves the new settings before it errors otherwise it would be really noisy. Many point the G5 as hot and inefficient but to be fair compared to the Pentium D it's really not that bad.

There are ones for 040 pds and ones for 030 pds such as in the iici or iivx. I have one it my iici, it’s pretty neat. It even changes the startup sound to PowerPC. The 040 card will fit in more machines but in my opinion the 030 card is worth more do to it being more rare.

Have a look here before you commit to anything: https://www.bigmessowires.com/mac-rom-inator/ they are not sold anymore by Steve but you can make them.

FML is right! Only kidding... According to the datasheet, these chips are 256k x 1 bit, the way you calculate a total for a simm is to add all the bits and then divide by 8 to get bytes. so 256k x 1 bit x 8 chips / 8 = 256kb per simm. (I realize multiplying by 8 then dividing by 8 is redundant...