General discussion

Locked

Mobo or Monitor?

By some_random_geezer ·
Hey there everyone. I have a problem with my pc. My pc was working fine the other day everything smooth and then I decided to get a new mobo. I wired everything up correctly, the power came on and all fans etc were working but the monitor did not come on. It was working on the previous mobo. So I tried switching back to my old mobo and now the monitor does not turn on with that one either! I have tried reseting the BIOS and CMOS switches on both. I also tried taking out the battery on each one but didnt work still. So is there anything I could try on it to see if it works. I would appreciate any help... specs are:

20gb HDD
1 x 128 PC2100 RAM
1 x 256 PC2100 RAM
Radeon 9200 256mb Graphics Card
AMD 1600 Duron CPU
1 x CDRW Drive
1 x CDR Drive
1 x FDD

And the new mobo is:
PC CHIPS M848 DDR400 FSB 400MHz, skt A.

And the old mobo is:
PC CHIPS M811 DDR333 FSB 266MHz, skt A.

Cheers - Andy

This conversation is currently closed to new comments.

16 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

by TheChas In reply to Mobo or Monitor?

One common problem when installing a new motherboard and then getting no video signal is an improperly seated video card.

AGP video cards use an interleaved connector. The card need only be a few 1,000s 0.001" of an inch from being fully seated to not function.

Another thing to check is for an extra standoff that is shorting out the motherboard to the case.

PC2100 RAM is slow for either motherboard. It just might be too slow to allow the new motherboard to set the proper CPU speed settings and is causing a no boot condition.

Finally, as it is late fall in the northern hemisphere, static electricity is a possibility.
If you did not use a ground strap, or follow ESD precautions, it is very possible that you zapped one or more pieces of your system..

Chas

Collapse -

by some_random_geezer In reply to

Poster rated this answer.

Collapse -

by some_random_geezer In reply to Mobo or Monitor?

Hey Chas, thanks for helping me with my question. I managed to get the monitor on now but the only problem is that when the windows xp boot up logo comes on, a blue screen appear stating there is a hardware problem. Now I think this is something to do with the RAM i put in it. I placed 1 x PC400 256mb DDR in the first slot and tried the other two slots but no luck, any ideas? Cheers - Andy

Collapse -

by some_random_geezer In reply to

Poster rated this answer.

Collapse -

by maxwell edison In reply to Mobo or Monitor?

Stranger things have happened, but I suppose it is possible that your monitor decided to go to the big CRT-Land in the sky. So the first thing to do is to eliminate the monitor as the possible culprit. Plug it into another computer, and if it doesn't work on that one either, then that's the problem. If it does work, I would work backwards from there and look at the graphics card. Maybe the card got zapped somehow in the transfer. You could either try that card in another computer or a different graphics card in that computer. If you've eliminated the graphics card, then going backwards a bit more would take you to the motherboard -- either you fried both of them or, more likely, you have something connected incorrectly. Do you get the "beeps" from the POST when you boot up? It's a process of elimination, one component at a time.

Collapse -

by some_random_geezer In reply to

Poster rated this answer.

Collapse -

by wcp In reply to Mobo or Monitor?

I think the culprit is the DDR400 256MB.

The RAM itself may be O.K. But your Duron 1.6GHz is running at 266MHz, which means you have to set your MB FSB to 133MHz. The right DDR is DDR266. When you have a DDR 400, it must be down clocked to 266MHz. Otherwise, the system becomes unstable for some MB and this might have caused the BSOD.

For a system to be the most efficient and stable, the speeds of CPU (external clock), MB (FSB), and RAM must synchronize.

Collapse -

by some_random_geezer In reply to

Poster rated this answer.

Collapse -

by RCOM In reply to Mobo or Monitor?

You need the correct RAM for the new mother board following is an explaination of how to calculate the correct type of memory needed.

To calculate bandwidth, take the CPUs FSB & multiply x 8. Then match the RAM to that.

For example, a 266FSB system has a bandwidth of approx 2128mb/sec (266 x , so you should be running PC2100 RAM or better. This is correct for the first motherboard.

A 400FSB system has a bandwidth of approx 3200mb/sec (400 x , so you'd need at least PC3200 RAM.

Collapse -

by some_random_geezer In reply to

Poster rated this answer.

Back to Hardware Forum
16 total posts (Page 1 of 2)   01 | 02   Next

Related Forums