You're unlikely to fry it anyway, it'll just overheat and probably start locking up. Those CPUs were pretty robust. They weren't known to catch fire like the AMD CPUs ;-)
But it IS an AMD CPU he's using!
But yeah, was mostly later models that had the issue. Not sure about the 486s...
I might be recalling things wrong but as far as I remember the issue only came to be after you started needing different boards for Intel and AMD CPUs while at 486 times both still ran on the same boards.
Yea this is a Socket 3 board, I'll give the page of where I bought it (didn't want to before in case someone else swiped it)
http://www.ebay.com/itm/252522204439It actually seems to be a pretty decent board. From what I can tell it has 256k of cache, and I plan to upgrade the 32MB provided with top of the spec 128MB of memory.
If you want the rest of the parts there are as follows, keeping in mind this is what I was able to find, not what I should have got.
As a side note I am perfectly aware of the issues with VLB, I wanted to use it anyways as struggling with stupid old hardware is half the joy of retro computing, and wouldn't
be complete without it.
For the video card I went with the Diamond Stealth SE VLB, upgraded to 2MB of FPM-DRAM. Not the most
powerful options, A Mach 64 or Speedstar Pro would probably have been the dream card, but I couldn't find one for a decent price.
The rest of these specs are pretty OP for an old 486, but if I am gonna build a 486, I might as well go all out and build the best one I can.
For the CPU, I went with the previously mentioned AM486-DX4-100, one of the best 80486 chips, and it's even clocked to 120Mhz by the seller.
For memory I said I did 128MB, an amount I will probably NEVER need, but I sprung for it anyways thinking 20 bucks with free shipping was too cheap to pass up.
The MultiI/O controller I have is a DTC2278D, with two IDE channels for up to 4 drives, and it appears to have every interface known to 1993 man.
The hard disks are actually ones I already have, they are Western Digital Caviars, each about 2GB that I plan to have on a swap out arrangement with Windows 3.1, NT 3.1, and OS/2 (whatever version I find) on one of each. I could do an early multi-boot but I want to keep to single disk environments for now
The sound card is pretty beefy as well, an AWE64 which is a Sound Blaster 16 + MIDI (Slightly better MIDI than an AWE32, but no memory upgrade abilities)
I also have some AT bugger off power supply off Newegg (Who knew they still made and sold them, it's just a standard that already exists and can be powered on without needing to short the power connector)
and a dual 5.25 and 3.5 inch combo drive I plan to slap in and a random IDE CD drive I have laying around (would rather have one that works than deal with the ultimate joy of something like a Sony controller)
Thanks for all the help, I will make sure to get a decent fan on the chip, and I can always pick up a heatsink if it doesn't work out.
That about covers everything, the mobo comes from Russia, so if it survives WW3 (bad joke), it should be here in about a month, but the rest will trickle in.