Hi everyone, my first post on the forums. I've been working on building a 486 computer and have been getting a lot of information from these forums but I've hit a wall and need some advice. I recently purchased a 486dx4 overdrive cpu.

This is the one I got:
http://www.ebay.com/itm/141024869118?ssPageNa … 984.m1439.l2649

I've built modern day computers for myself in the past but doing this old build I'm having to learn a couple things. Reading through these forums I've put together that 486dx2 and lower 486 chips use a 5v socket? and the 486dx4 without Overdrive uses a 3.3v? Since mine is an overdrive does that mean that the cpu that I have will work in both? I think I read somewhere researching on google that the Overdrive chips have their own voltage regulator built in. I've found a few MBs on ebay that look good but I definitely don't want to get the wrong one and fry my cpu.

So far with this build I have the above cpu, I own an ATI Mach64 ISA graphics accelerator, a Sound Blaster 16 (ISA), and a 400w AT power supply. The MB that I've been looking at is here:
http://www.ebay.com/itm/141029096419?ssPageNa … 984.m1438.l2649

The only issue that I run into with this board is when I googled MB486HE#20 for its configuration and settings I found this:
http://stason.org/TULARC/pc/motherboards/I/IP … ml#.Uf7nv-7D9hF
If you scroll down to "CPU Type Configuration" it doesn't even list the 80486dx4. So I'm assuming it doesn't even support it. I also realized after buying the cpu that it is an ODP instead of an ODPR. From what I've gathered in my research ODP is fine as long as it's not a pre-socket 1 486 board because of the extra pin, I would just like some confirmation.

If anyone could give me some suggestions for a motherboard it would be greatly appreciated and any feedback too. Thank you.