blank monitor

Does the "no show" follow the card?

How old are the systems (guestimate).
What brand name aere they if any?

have you tried swapping the ram out ?

Traygreen, I'm not sure what you are asking.  The screen stays black, never showing anything, even though the power is connected and the power light is on.

E5haiz, I guess they are about 5-6 years old.  They are ACT brand.

gward28, I'm not sure if I've tried swapping RAM yet.  I've tried everything else and had heard that this could be the problem, but not sure if I did it.  I really think I did.  Won't be back at work until Monday.  I'll try it then.  

Thanks to all of you!

Beep codes are the Power On Self Test (POST) method of telling you what's wrong. Two beeps doens't ring any bells (sorry - bad pun) but *NO* beeps indicates DOA system. CPU should *always* do at least *one* beep. NO beeps indicates more serious failure. Check fan, keyboard LED's etc. Could be something as simple as power supply failure or as complex as dead CPU (although I've never personally seen a dead CPU chip, other stuff, yes, CPU's, no).

M

I think mark2150 is on the money in most of the MB guides I have 2 beeps indicate a Ram problem and no beeps also can sometimes indicate that the Ram is not right simply try resetting the Ram this may solve the problem. The other possible reasons already mentioned maybe the cause however the ram is the easiest to check first.  From what you have said you have discounted the video cards and the monitors , Does the system continue to boot or simply stop?

Irelandone,  I can't tell you if the system boots up or not, yes, it seems to be headed in the right direction until I hear the beeps or hear nothing on the other one.  How far it gets or what the computer is telling me, I don't know because I can't see the screen.  I'm thinking they do not boot up all the way.  I think they stop right after the beeps and the one with no beep, I really don't know.  I won't see those computers again until Monday, so I can't check it until then.  But, I will swap the RAM and I'll let you all know if anything works.  I appreciate you all trying to help me.  
Next week, we get out of school Wed., Thurs., and Fri. for the Washington Parish Fair.  It is the largest FREE fair in the states (world?).  Ya'll come see.  If you can't make it, visit their web page- just type in the name of the fair on your search engine.  
Well, thanks to all who contributed.  I will let you know something at least by Tuesday, but probably Mon.

The Beep codes can be specific to the computer BIOS. Before we can deduce the problem, we need to know what the beeps are telling us.

Look at the motherboard. You will hopefully see a chip with the name like AMI, Award, or another BIOS manufacturer.

You might then be able to go up to the web site, and get the error beep info. I know that if that BIOS is an AMI, two beeps is a fatal error, and the processor or mboard is not working correctly.

If it was a video problem, you would hear 7-8 beeps, but once again, it depends on the BIOS.

Also, older Mboards have a little jumper somewhere on the board which switches the video mode (vga, ega, other). See if you have one of those.

Memory is a concideration, but the processor is also something to think about, although that is rare.

Let me know what you got.

Thanks, j-powers.  I will look at it Monday and will try installing new RAM and then will try to locate the BIOS part of the computer.  I didn't know the BIOS was a chip.  I'll have to look for that.  The only things I can remember seeing in there was a metal box that said "do not open".  Could it be in there.  On these computers, that box is located in the front right corner.  I don't know what it is or what it is for, but I will try to locate a chip that says BIOS on it.  The only chips I (at this time) have ever noticed in there was the video card and the RAM.  Thanks, and I'll inform you all of my success or failure at least by Tuesday.

HI harrah Just be careful the box that says "do not open" sounds very much like the power supply unit LEAVE IT ALONE!  the BIOS CHIP IS A SMALL CHIP ON THE MOTHER BOARD and normally has the words eg "AMI BIOS or AWARD BIOS" PRINTED ON IT
this is dependant on the BIOS maker.

The main reason for this comment is to suggest that if there is a lot of leads coming out of the box that says "do not open" leave it be that is not what your looking for.
Take Care

Tom

This is an update on 1 of 3 computers that show no screen.  After looking inside the computer, I can see what appears to be a battery.  It is a small (about 1/2" long), barrell shaped gray thing with numbers on it.  I can see gray powdery looking stuff on each end.  It looks just like a corroded battery.  Could this be the problem with this one?  Is this the battery?

I should have added that the fan works, but the A: does not.  It gives no beep.

This is an update on 1 of 3 computers that show no screen.  After looking inside the computer, I can see what appears to be a battery.  It is a small (about 1/2" long), barrell shaped gray thing with numbers on it.  I can see gray powdery looking stuff on each end.  It looks just like a corroded battery.  Could this be the problem with this one?  Is this the battery?

I will email you for information that may be helpful.  I'm going to email you with what I have found with both missing o.s. and blank monitor.  All I've tried so far is a visual inspection.

Thanks, Tonya