Need help with 2 486 computers

[AnD]

First a short introduction. I'm from Belgium and I love computers, the new ones and also the older computers because it all started with the old ones. ;-)
When I started with computers I was 9 years old, I had played some games on my friends computer but the fun started when we had our own computer.
It was a 386 computer with 33MHz and 2MB ram (I'm not sure what size the hard drive was I believe it was a 320MB), normally we had a 40 MHz computer, I discovered that after a few years, so they ripped of my dad but what do you want, my parents never touched a computer and it was for the kids (my sister and I).

Because I wanted a 486 when I was a kid, I now searched for one and at my work was one standing in a basement. It was a 486DX2 with a 420MB hard disk and I'm not sure how much memory it has.
I took it with me to my home and plugged it in, searched my old 5din keyboard and fired it up but there was no image on the screen. So I started to examine the computer but couldn't find the problem.

Then a week or 2 later I saw another 486DX computer on the net and bought it for €10. When I came home I tried it and I had a view but it wouldn't boot up.
"Please wait..." was standing on the screen and after a long time it gave a fdd and hdd controller fault.
So I thought there was something wrong with the ide controller and I took the controller from 486DX2 of my work and placed that in the 486DX computer but then I had a black screen and a lot of beeping sounds.
I looked at the motherboard for a number or a name so I could search for a manual but didn't found that, neither for the 486DX2.

I think that the 486DX can work but I need some help from an expert on this and I hope that the 486DX2 also will work.

So my question is what can I do to test these systems ?

Here are some pics of the 486DX computer (the one I bought):
http://home.scarlet.be/and/486/IMG_0394.JPG
http://home.scarlet.be/and/486/IMG_0395.JPG
http://home.scarlet.be/and/486/IMG_0396.JPG
http://home.scarlet.be/and/486/IMG_0397.JPG
http://home.scarlet.be/and/486/IMG_0398.JPG
http://home.scarlet.be/and/486/IMG_0399.JPG
http://home.scarlet.be/and/486/IMG_0400.JPG
http://home.scarlet.be/and/486/IMG_0401.JPG
http://home.scarlet.be/and/486/IMG_0402.JPG
http://home.scarlet.be/and/486/IMG_0403.JPG

Here are pics of the 486DX2:
http://home.scarlet.be/and/486/dx2/IMG_0405.JPG
http://home.scarlet.be/and/486/dx2/IMG_0406.JPG
http://home.scarlet.be/and/486/dx2/IMG_0407.JPG
http://home.scarlet.be/and/486/dx2/IMG_0408.JPG
http://home.scarlet.be/and/486/dx2/IMG_0422.JPG
http://home.scarlet.be/and/486/dx2/IMG_0423.JPG
http://home.scarlet.be/and/486/dx2/IMG_0424.JPG

[RedWolf]

Welcome to the forum!

In that second group of pictures (the ones of the 486DX2 mother board), I'm a little concerned about the CPU in the socket there.  There are a bunch of open pins all around it, which suggests to me that the CPU might not fit that motherboard, or else it's inserted incorrectly.  I suppose some company may have designed a CPU socket to fit multiple types of CPUs, but it seems unlikely to me and I've never seen that before.

If you can find the manual (you said you looked, I see) for that motherboard, you can see exactly what type of processors it can use and how many pins they should have.  Then compare it with the pins on your 486 DX2 chip itself.

Hope that helps some.
Benj

[IGadget]

well this is an old topic, but the news says it is alright to reply, so despite the post warning....

Warning: this topic has not been posted in for at least 120 days.
Unless you're sure you want to reply, please consider starting a new topic.

I'll add some help if anyone else gets these errors. Unfortunately the pictures have been removed by now so I cant see the boards in question.  Lots of beeping and a blank screen is a likely a video board issue. On newer systems it is thee short and a long, but under some older BIOSs 8 short were used instead.

With any beeping it is important to know the number of beeps and the pattern if there is one. These boards existed before there were many standard standards and each bios maker rolled their own,

The larger socket meant that the board supported the first generation of Pentium ODP (Overdrive processor) chips before they hit the market. The ODP chip used 4 ranks (I guess you would call them) of pins instead of the 3 that 486's and 386's used. they also used inline spaceing unlike the staggered spacing that started with the Pentium I series.