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Upgraded GPU = "No Signal" (AGP) - What next?

Crawford

Crawford

Crawford

Associate
Joined
28 May 2003
Posts
302
Evening folks,

*** Meant X1650 XP Pro 512 - Sorry! ***

Could really do with some advice on how to solve the problems i've encountered in my attempt to upgradge a graphics card.

The aim was to replace a Radeon 9600XT with an X1950 on an NF7-S mobo, both obviously being AGP. The 9600XT had been working fine, and the X1950 is new from Powercolor.

Before pulling the 9600XT i uninstalled the ATI stuff in the command panel (XP Pro). For good measure (and perhaps stupidly) i also noticed an NVIDA driver sitting there, so i thought i'd have that off too.

When i came to restart the monitor announced "No Signal". The computer sounds like it otherwise spins up as normal, though i am not familiar with its normal sounds (my sister's PC). There are no "posting-beeps" and i am not sure whether there are normally. The fan on the card spins up.

I have tried:

1. Reseating the graphics card.
2. Checking RAM etc
3. Clearing the CMOS
4. Refitting the oringal card - still "no signal".
5. Refitting a Geforce 4400 - still "no signal".

Points 4 and 5 seem to exclude a DOA as well as the PSU being under-powered (380W Antec). There is no onboard graphics out, so i am at a complete loss as to what to do.

HELP!!!!

Cheers

Crawf
 
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I had an AGP x1950pro. I think the box recommended 400w but it was a while ago. I remember it needs two molex connectors from the PSU.
 
The key thing seems, to me, to be the fact that the card which was working earlier this evening (Radeon 9600) is no longer working in the oringal PC. However it does work in a second rig, where the X1650 does not (different mobo design, specifics of which i forget).

Furthermore, i have tried 4 different graphics cards on the original rig, none of which work. At a bit of a loss how to proceed if i can't even get a signal!

As for the above points, i can't see any molex points and i would have thought 380W was enough to at least get to the BIOS screen......
 
Sounds to me like the PSU couldn't cope with the new GFX card and has given up the ghost.
There's also a possibility it has taken the new card with it, if this doesn't work in your other machine, but you'd need to test further :)

-Leezer-
 
That doesn't mean anything much really- PSUs can fail in plenty of ways, doesn't have to be a massive bang :)
Try the PSU from your spare system and see what happens.

The motherboard could also be toast, but I'd point at the PSU first, as the new graphics card seems to have died too (A dead motherboard shouldn't kill graphics cards, whereas an expiring PSU can easily)

-Leezer-
 
Crawford said:
As for the above points, i can't see any molex points and i would have thought 380W was enough to at least get to the BIOS screen......
Click to expand...

You won't get anything out of the x1950 without 2x molex connectors plugged in. For testing purposes, put your own PC next to it and plug in from that.

Generally speaking, the cards that were released as both AGP and PCI-E, the AGP version is more likely to require extra power to be plugged into the card.
 
Right, i found that there was indeed a 4 pin connector which i had not connected. Connected it, and then fiddled with the power cable, and on she came.....

With all sorts of wierdness. The boot menu says "CPU is unworkable or has been changed. Please recheck CPU soft menu."

Nothing in this menu which i understand. If i continue the system boots into windows, and throws a fit about there being lots of new hardware installed. It is unable to recognise any of it!

The CPU is now being recognised as an XP1250.....

At quite a loss!
 
It could be because you cleared the CMOS. My athlon XP did this. I can't remember exactly but it was a case of changing the FSB from 266 to 333 or from 233 to 266. Something like that. You would have to google the exact CPU you have. I think I had the athlon 1700 and it showed as XP1200 or 900 after clearing the CMOS.
 
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You have deleted your motherboard drivers, that will be the NV drivers you noticed and deleted.

Get in the BIOS and sort that out, then find your mobo disk and get have disking the !'s.
 
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