Did you install a Graphics Card, connected a PC Speaker and did you push the switch on the Atx to AT adapter?

Yes, I even tried one of these connectors with a P8/P9/and P10 connector as the mobo requires it.

I just ordered this one for $8
I will try this one with a power switch.
http://www.circotech.com/atx-to-at-power-supply-adaptor.html

I would start by removing every thing that is removable. All ram sticks, the cache chips, even the com port headers. Every damn thing. Then I’d try starting it with only one stick of ram in the first slot. Try all sticks like this if it fails. You should not need the P10 connector which gives extra power to the PCI cards if you install many of them.

I have a BAT4IP3E with a 10/26/94 build sticker on it. It has the PS/2 style connectors on a 420ex baby AT motherboard.

Board wouldn't beep until I tried a vanilla 486DX 33. Didn't like my other chips.

Once I got it to beep, it only gave the 1-3-4-1 phoenix mem error code until I put simms in both slot 0 and slot 1.

Once it booted, it complains that it needs a new dallas realtime.

Going to see if I can get an AMD-x5-133ADW to run once I get the new clock battery and build heatsink.

I'm going to see if I can make a socket 3 heatsink "retainer" out of rectangular stainless orthodontic wire that's available on ebay for cheap these days. =)

I didn't need to use the P5 connector PCI power connector to get it to boot with a Diamond Stealth 64, but I am lucky enought ohave an old 400 watt ATX enermax with a P5 cable on it if I ever need it.

douglar wrote:

I have a BAT4IP3E with a 10/26/94 build sticker on it. It has the PS/2 style connectors on a 420ex baby AT motherboard. […]
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I have a BAT4IP3E with a 10/26/94 build sticker on it. It has the PS/2 style connectors on a 420ex baby AT motherboard.

Board wouldn't beep until I tried a vanilla 486DX 33. Didn't like my other chips.

Once I got it to beep, it only gave the 1-3-4-1 phoenix mem error code until I put simms in both slot 0 and slot 1.

Once it booted, it complains that it needs a new dallas realtime.

Going to see if I can get an AMD-x5-133ADW to run once I get the new clock battery and build heatsink.

I'm going to see if I can make a socket 3 heatsink "retainer" out of rectangular stainless orthodontic wire that's available on ebay for cheap these days. =)

I didn't need to use the P5 connector PCI power connector to get it to boot with a Diamond Stealth 64, but I am lucky enought ohave an old 400 watt ATX enermax with a P5 cable on it if I ever need it.

Do you have any info on this motherboard jumpers and connections ?
Where is the power switch ?

Since it's an AT motherboard, the power switch would be in the power supply, no?

I've learned that the part number is MBDPCI003AxWW and the model is "Gateway 2000 Anigma BAT4IP3"

Many of the important jumpers are silk screened on the board on mine. I'll post picture tomorrow if that would help.

the answer is in the picture you linked the green and black cables with the prongs for the power button need to be connected together

We have a page for this board, will add the info from this thread in there later.
https://www.ultimateretro.net/en/motherboards/6992