No, there´s no problem with IDE connection because I don´t use any Hard disk, It´s only the mainboard, the video card, cpu, and ram memory.
I replaced all components (video, cpu, ram, etc) but nothing happened.

I tried to make a HOT SWAP ( replace the bios while the mainboard works ) but is the same... nothing happened.

Could be the AT connection? I´ll try with ATX.

OHH!!! I didn´t say that I put all components disabled. ( Sound, modem and LAN)

Sorry my english is very poor

Hi everyone, this is my fist time here so I hope you can help me.

I have a 598LMR Motherboard from PC CHIPS Manufacturer.
I don´t find any bad caps, even if I check them with a simple digital multimeter, but the motherboard still working bad.
I changed CPU, and RAM, and Video card but nothing happened.
This motherboard don´t turn on.
Actually I have an AMD K6-2 500 AFX CPU and 64Mb Ram DIMM PC 66/100
I use an AT power and the POST ANALYZER Shows me an "ED" error, which means INITIALIZE THE BOOT DEVICE OR MEMORY SIZE. (BEEP) = 4-3-4-2...