Is this the same one?

I believe so! In fact, that is exactly it!
What other boards was it used on?

I believe you mean, it was a really high performance 386.

You're not going to have a terribly easy time finding one. The only system I am aware of that came with one was the IBM PS/1000 (in DLC2-66 flavour). I believe it was also used in the PS/2 Model 57 Ultimedia, but it was gimped down to a 16-bit bus. The Alaris (IBM) Cougar motherboard is probably the easiest way of getting a hold of one. It's the only standard baby AT sized board I am aware of that has one. Manufacturers such as Kingston and Evergreen also made CPU upgrade modules with the 486BL, but they are extremely rare and expensive.

You are probably more likely to run into the 486SLC2 which is the 16-bit equivalent of the 486BL, which is easiest to find on the Alaris Leopard motherboard and certain Thinkpads.

its practically a 486 that presents itself as 386

it is a pain in the butt of a CPU to upgrade with.

Well, I guess I'm keeping my eyes open for an Alaris Cougar! I believe it uses the latest version, the BL3, which is the fastest.

I have borrowed an old working complete system (built in the 90s) that is running the 486BL at 100MHZ.
The CPU is soldered on a PCB, that is plugged into the socket. Has a black heatsink glued to it.
The motherboard has "Tornado LX rev. D2" written on it, and it has a "EFAR EC802GL" chipset. (the "L" at the end is small.. Not lower case. Just smaller.)
Seems to be also known as "LEOPARD VX", and is made by: ALARIS Inc.

And it looks like this:
https://stason.org/TULARC/pc/motherboards/A/A … -LX-REV-D2.html
https://pcrebuilding.altervista.org/49/ ... )+486.html

Hope this proves useful to someone, even if it's almost 4 years late 😜

Nice system - I first took notice of the Blue Lightning when skimming through the manual of "Mortal Kombat II" that stated that there could be incompatibilities with said cpu.

Would like to see how it performs in Doom.

amadeus777999 wrote on 2020-10-30, 18:31:

Nice system - I first took notice of the Blue Lightning when skimming through the manual of "Mortal Kombat II" that stated that there could be incompatibilities with said cpu.

Would like to see how it performs in Doom.

Well then, good news! Today I bought the system; so a benchmark might be coming real soon 😀

B24Fox wrote on 2020-10-30, 02:13:

I have borrowed an old working complete system (built in the 90s) that is running the 486BL at 100MHZ.
The CPU is soldered on a PCB, that is plugged into the socket. Has a black heatsink glued to it.

Are you able to show us a picture of this CPU?

Sure.
But there's not much to see really.. It's got a big heatsink glued to it.
I'll try to take some pics tomorrow.

Normally the BL3 had a small heatsink glued onto it.

B24Fox wrote on 2020-10-30, 22:04:

amadeus777999 wrote on 2020-10-30, 18:31:

Nice system - I first took notice of the Blue Lightning when skimming through the manual of "Mortal Kombat II" that stated that there could be incompatibilities with said cpu.

Would like to see how it performs in Doom.

Well then, good news! Today I bought the system; so a benchmark might be coming real soon 😀

Looking forward to it!

Here are the pictures.

Also, when starting the PC, the CPU is identified as 486BL at 100.*something* Mhz ..
IIRC it's 100.1 or 100.7..

Didn't have time to set it up again for a bootup.

Some close-ups:
(you can definetely see the IIT Math CoProc.)

Now THAT is weird. I have never seen anything like it before. I wonder if it just works with this board or if it can function in any board with a normal 486 socket.

I'm inclined to think that this board is somewhat special.
1st of all, the bios is unlike any other 486 board i've ever seen (& i've seen a few). (It resembles the bios form a P4 Dell Latitude Laptop i've seen.) Everything is broken down into neat categories. And you scroll through the "pages", from left to right.. And at a certain point it says "More..." and you have to press on it to see the rest of the pages that are hidden to the right. The background is a very nice dark greenish- BLUE.
2nd.. it has support for 4 Floppys!!
3rd, it only has (what look to be) solid polymer capacitors. No electrolytics. Which is kind of in tune with the whole "top of the line, quality" that IBM was said to have been going for, with these pre-built machines.

Oh, and on the STASON.org website, it says that the board's bios is "ALARIS".
And on the PCB that the CPU is soldered on, there is also "ALARIS" written on it.
So I think that the mobo and the CPU were definitely made for each other.

Very nice system. Looking forward to seeing how it performs.