Can anyone tell me if this was a standard IBM add on ?

Yah, that's FRU SXYZ-1866, Black Widow and general arachnid control device, designation mud dauber.

I got this from Texas. We dont have such exciting bugs in Wisconsin. Further research into mud daubers reveals a story like the aliens movie. It paralyses the spider, lays an egg on it, entombs it in mud… yuk.

But there is a happy ending (not for the spider) - a bit of warm water and a scrub and “it freakin works !”

Cool, might be a bit flakey for web development though until the residual protection wears off 🤣

How fast is it? The "Oh god I wish this was a decent turbo XT clone" 6mhz, or the blazing fast 8?

Brilliant. The chip says 286-6, but the oscillator crystal says 16mhz, so its overclocked to a massive 8mhz. And with 512 kb of memory, 20mb hard disk….. Do you think it was more useful as a nest for wasps?

Do you think it needs cleaning ?

Nope looks just fine to me.

*hands matches and jerry can

For the spiders you know are hiding in there waiting for their chance to rescue their brothers.

I had no idea the 286 came in a PGA package! I think every one I've ever seen was in either PLCC or LCC.

Nah, it looks fine to me, go use as is! 😀

davidrg wrote on 2022-06-25, 03:57:

I had no idea the 286 came in a PGA package! I think every one I've ever seen was in either PLCC or LCC.

Actually, iirc I once found one which even had a little tiny heatsink! 😜

I’ve got this monster 12mhz chip if I ever need to model weather patterns.. is this PLCC ?

Fdiskitup wrote on 2022-06-25, 15:57:

I’ve got this monster 12mhz chip if I ever need to model weather patterns.. is this PLCC ?

Yep, thats PLCC. Most if not all of the 286s I've ever seen are in that package for whatever reason. I assume it must have been cheaper - plastic rather than ceramic.

What's the motherboard this 286 12 came in?

Cheers,

I wouldn't clean that. I'd plant potatoes in it 😀

pentiumspeed wrote on 2022-06-25, 22:49:

What's the motherboard this 286 12 came in?

The 12mhz 286 is in an HP Vectra ES/12, also it has the 287-12 but that is an AMD DIP chip. Probably also a cost saving.

Here's a crusty T7600 Core2Duo I received. Cleaned up nicely 8)

Cosmic wrote on 2022-06-26, 01:10:

Here's a crusty T7600 Core2Duo I received. Cleaned up nicely 😎
I did not know you could use mud as thermal paste 😀

i like the before after pics, shows what a little* cleaning can do!

*or a lot!