HELP: new system board and cpu, now no video

[maXroOt]

so i just installed a new system board and a new cpu (2.6 ghz celeron). first i turned it on, i got the 3 beep error. i reseated the memory, no more beeps. but then i turn it on, and nothing comes up on the monitor. the little light on the monitor just blinks as if the computer wasnt turned on at all. the comp. doesnt give me any more beep errors, so it seems to think that the video card is seated correctly. its not a new video card, it was working fine an hour before i did the systemboard/cpu swap. any ideas what is wrong? this is really pissing me off as this is all new stuff, i cant think what is the problem (btw, the monitor atleast knows that its plugged into a video card, i dont get a no signal connection error, so it isnt that)

 

[mechBgon]

What motherboard, and what video card? I'm wondering if it could be the 3.3V-versus-1.5V AGP problem. Also confirm that you've got the power supply's secondary ATX12V power plug plugged into the motherboard (four wires, square 2 x 2 plug).

 

[maXroOt]

its a pcchips 922 system board. video card is an old geforce 2 400mx (64 mg sdram). is the secondary power supply really needed? cause i searched everywhere on the system board, and couldnt find a place to plug it into. its also not mentioned in the manual for the system board.

 

[mechBgon]

Hmm, you're right... there doesn't seem to be a fitting for it on that, if it's the one on their site. I do see that it has slots for both SDR and DDR modules; if that's the model you've got, do double-check that your modules are in the appropriate slots (SDR slots will have two "keys," DDR will have just one).

Beyond that, do you have any other power supplies you can test with? 300W or higher is what I'd be using, if possible. Good luck!

 

[maXroOt]

yea there is no fitting, ive gone over it so many times lol. and yea im sure its in the right slot, i mean, the ddr would obviously not fit into the sdram one. and no i dont have any more power supplies to test w/, but the one i am using is 300W.

and u dont think its the agp voltage issue that u mentioned above?

 

[Homerboy]

make sure the MB isnt shorting out on the MB tray.
can you "hear" the HDs and the operating system booting up?
Or are teh fans etc just spinning?

 

[maXroOt]

i can hear the HD's being booted, and the fans spin the entire time. it sounds like it is booting up correctly.

 

[maXroOt]

could this be a hardware issue ??? im thinking of calling up the place i ordered it from, but what could be wrong with it?

 

[mechBgon]

The video card should be compatible. You could double-check it by throwing it back into the other board for a minute, just to make sure it's still working (ditto for the RAM).

My other ideas were 1) could the board need a BIOS flash to run the Celeron 2.6GHz? That's a recent chip on an older motherboard, and 2) double-check the Clear CMOS jumper to make sure it's not in the "clear" position. If you didn't try already, do clear the CMOS (unplug system from wall, clear CMOS, put jumper back to Run position, power up).

 

[maXroOt]

hey,

1. hmm that is an idea, not really sure how to do that since it doesnt since i cant see anything
2. yea i already cleared it

they said they pre-tested it at there shop, so i thought that maybe they had different config. settings so i did the CMOS clear thing a little while ago, still nothing.

could this be an issue with there hardware?
thanx for all ur help so far

 

[mechBgon]

I guess the next thing I'd do is what Homerboy is saying: make sure the board isn't touching something it shouldn't, by pulling it out of the case, laying it on cardboard, and trying it with just keyboard, memory, video card and CPU. And you probably know this already, but do make sure you got the keyboard plugged into the keyboard port (the one closest to the surface of the mobo).

 

[maXroOt]

well i had that problem a couple years ago w/ my old board, it was shorting out. but it cant be the same problem now cause when it shorts like that, i know it will only turn on for a second and then turn off right away. mine stays on.

and about the keyboard thing: i know this, and i checked this before about 10 times, but nonetheless i just noticed something very interesting. the keyboard IS plugged into the keyboard port (correctly aligned, and pushed in as far as can go) HOWEVER if i push the caps lock or num lock keys, the little lights on the keyboard that should light up DONT, which would indicate that the keyboard is in fact, not plugged in. but its pushed in as far as can go, and is definitely in the right port. wtf. could this be causing the problem as i described above?

 

[Matthias99]

It could still be shorting out. Different boards react differently.

I doubt this is your problem -- your system will still have a video display even if there's no keyboard! But that could be an indication of an internal problem with the motherboard.

 

[maXroOt]

ok i will check on the shorting thing ....


so it could be hardware then? bah. i didnt think it would be shorting since i had this problem with my old board, and put rubber washers in so it wouldnt touch the case. this is the same case, so i thought it would work and not short. i will check though

 

[maXroOt]

i checked for the shorting problem: even w/ the MB on cardboard (actually magazines) it still has the same issues as i described earlier

 

[mechBgon]

Hmm, maybe put the video card and memory back in your old board and confirm that they're still ok? You mentioned that your old system was having some flakiness... are the video card and memory from the old rig? How about the power supply?

 

[Matthias99]

That really makes me think there's something wrong with the motherboard. I'd return it -- just tell them you can't get any video signal and you're sure the video card is working (assuming you *are* sure the video card works). It may not support the Celeron 2.4, as suggested above (the only info I can find on it says it supports up to 2.0Ghz P4 processors). It looks like it has 4X AGP, though, so there shouldn't be a voltage problem with the videocard.

Personally, I would have bought something a little less bottom-o-the-barrel, but to each his own. That is one old, scary-looking board. DDR AND SDR slots? Freaky.

 

[maXroOt]

i just put the old MB and stuff back in, i am on that comp now. so, memory works fine, video and power supply works, etc.

Originally posted by: Matthias99
That really makes me think there's something wrong with the motherboard. I'd return it -- just tell them you can't get any video signal and you're sure the video card is working (assuming you *are* sure the video card works). It may not support the Celeron 2.4, as suggested above (the only info I can find on it says it supports up to 2.0Ghz P4 processors). It looks like it has 4X AGP, though, so there shouldn't be a voltage problem with the videocard.

Personally, I would have bought something a little less bottom-o-the-barrel, but to each his own. That is one old, scary-looking board. DDR AND SDR slots? Freaky.

yea the board supports 4x, i dont see how the video card could be having an issue. lol yes yes its crappy and all, but was pretty cheap. didnt think there would be this problem though

 

[lalala1239]

oops