|Posted on Thursday, May 10, 2001 - 5:01 am: |
In order to learn and save some money, I am trying to build a dirt cheap server. I got a barebones system and have added the following components:
System: On Speed U-361 Socket 370 AT Barebone w/1.44 floppy
MB: 631 SiS620 Baby AT (award bios)
CPU: Celeron 533 PPGA
RAM: NEC 128 MB pc100
HDD: WD 40GB EIDE drive
The system does not boot at this point. I have installed only the components listed above, and set the jumpers for the 533 Celeron.
When I turn the power on to the system, the HDD spins up, the PS fan turns on, and depending on where I connect the CPU fan wires, the CPU fan starts (with the wires going to CPU fan on the MB, the fan does not start; with it connected to 'sys fan' the fan does start). The floppy drive activity light never comes on, and the system does not give any video output to the monitor. There are no beeps emitted by the system either.
After browsing this board, I think the issue may be with the RAM. I took the RAM from a functional system, based off of an Asus P2B-LS. So assuming the RAM is compatible with this SiS-based MB, it should work on the new system (I would think?).
Any suggestions on where to start troubleshooting this? I am just now putting the system together, so it has never booted successfully at this point. I am wondering if the fact that the system won't boot is related to the CPU fan not spinning when it's connected to the CPU fan PS on the MB.
I haven't been able to find the On Speed web site or any MB manufacturer docs, so I am flying somewhat blind on this one. If anyone has heard of this company, I'd love to find their site or contact info ;)
Thanks in advance for any advice.
aer0@ hotmail .com
|Posted on Thursday, May 10, 2001 - 9:23 am: |
can you test the powersupply in another system? or a known working powersupply in the system your putting together?
can you test the new ram in another system as well
if the cpu fan won't spinup when connected to the powersupply maybe the powersupply is faulty
just some thoughts
|Posted on Thursday, May 10, 2001 - 9:32 am: |
just reread your post. think i got it backwards.
the cpu fan won't spin when connected to the connector on the mainboard
will the floppy work in another system?
is it built in video?
could the board be defective?
some more thoughts
|Posted on Thursday, May 10, 2001 - 1:14 pm: |
Ok, so this goes to show why you shouldn't work on these things at 4am. This morning, I restarted the system and it made some progress. There is a short beep when I turn the power on. Now the CPU fan spins whether it's connected to the sys fan or CPU slot, on the MB. The keyboard indicator lights come on and the HDD spins and it attempts to read from the floppy.
The only thing that I had done in between now and when I was getting little to no activity was make sure the power cables between the MB and PS were secure. None of them felt like they were out of place.
One minor problem though: the video output is just light static the entire time the comp is on. I tried with another monitor, which I know is good. There is a cable that connects the monitor cable to the MB. When I disconnect that cable from the MB, I can see 2 rows of pins. One row has 8 pins, but the second row has only 7? Is it fairly safe to say at this point that the onboard video card or the connector is bad?
If I were able to dig up a PCI video card, would I still need to access the BIOS or CMOS to set up the 2nd video card before being able to use it?
thanks again for the suggestions.
aer0@ hotmail .com
|Posted on Thursday, May 10, 2001 - 1:56 pm: |
i think the onboard video would need to be disabled first. of course documentation would be helpful. motherboards vary on how to do this. check in the bios to see if it offers an option to disable it. if not then there may be jumpers to deal with. but without documents how do you tell which ones? then install pci video and it should be detected. hope this works for you
|Posted on Thursday, May 10, 2001 - 2:18 pm: |
I can't get to the bios though. the only video output i get is a slight amount of static. ...any alternatives that you can think of or is it time for a new board?
|Posted on Thursday, May 10, 2001 - 5:03 pm: |
somehow, everything managed to work again, after a couple of reboots and some tlc. i am now in the process of installing the OS. thanks for all your help.
|Posted on Thursday, May 10, 2001 - 6:10 pm: |
hope everything else goes smoothly from here