Dead 7900GT need replacement advice

AndrewJ · 23-02-2007, 16:18

Right all today my 7900GT has died, I was getting crashes left right and centre, so I then took it out of the pc and carefully cleaned it on on the static pad with a aresol air canister, I then made sure it was seated properly and that all leads was connected, once and twice over.

When I goto boot the pc up everything spins over inc the gpu's fan but nothing to my screen, I am thinking the gpu is dead.

I will have in a few weeks about two hundred pounds for a replacement gpu card for my pci-e mobo.

I am looking for something 7950GT I did spot a 7950gx2 with 1gb onboard memory which caught my eye but cannot find it again on SCAN Or OCUK.

Any help would be nice. I'm posting this from the old P3 Dell Dimension 4100 we have...and boy is it flaming slow.

DocDutch · 23-02-2007, 16:46

mate your not having much luck with your pc eh

but finding a nice 7950Gx is hard as hell... looked on ebuyer, microdirect, novatech and some others for ya no go.

get a cheapo card now (say 7600) I know its a downgrade, save the dosh that you have and get a really nice and shiny card in say 3 to 4 months

Tightscot · 23-02-2007, 16:47

This 7950GT is cheap! Linkage

or even this 8800! Linkage

as for the dead card (7900GT) silly question but havce you tried plugging the monitor into each of the DVI outputs?

Also try turning thge PC off and unplugging it from the mains supply. Then wait 5 minutes or hit the power button to get rid of the remaining power, plug it back in and try again - every now and then i have to do this to get my 7900GS card to display...

hope this helps?

keithwalton · 23-02-2007, 17:00

here is ONE 7950GX2 http://www.overclockers.co.uk/showpr...597&subcat=637

Tho its not that cheap and an 8800 would probably be faster though the dx10 performace of the G80 has a very big ? over it

AndrewJ · 23-02-2007, 17:39

Thanks for the tips all gonna check it out later with the 7900thing, as for a dx10 card I am not too worried about dx10 I would like something which can improve my gaming on Battlefield 2142 for now, until I can save for my next system.

In regard to the computer being left without power for five minutes the computer does spin up and the HD powers up and the gpu fan spins.

---------- Post added at 17:39 ---------- Previous post was at 17:07 ----------

Okay well brought pc downstairs been about a hour since I touched it, setup all wires with no ethernet or usb etc and still nothing.

23-02-2007, 17:47

does the machine post? have you tried resetting cmos

AndrewJ · 23-02-2007, 17:48

Nope nothing the monitor sits on an amber light ( green normally ) like it's getting zip from the computer, yet everything in the computer powers up, this is what baffles me, the gpu spins up the HD wires into action their is no beeps no voice over no bad noises no smells it just sits there booting up

Tightscot · 23-02-2007, 17:49

do you get any beeps upon booting the system??

OK i see you don't... have you tried booting with no RAM in it - you should get beeps then...

23-02-2007, 17:57

so the machine isnt posting? reset cmos and try.
Im not convinced its the gfx

What were the crashes? sounds like a mobo problem to me tbh and the crashes were a sign of it dying. Could also be psu

AndrewJ · 23-02-2007, 18:09

How do I reset cmos... i've an asus a8n32 sli deluxe socket 939 nforce4 sli

The psu seems fine all fans working and i've no other than a 350watt to try IF I can find it

Alien · 23-02-2007, 18:36

Quote:

Originally Posted by Felinix_Devotion

How do I reset cmos... i've an asus a8n32 sli deluxe socket 939 nforce4 sli

Quote:

Originally Posted by Asus

Clear RTC RAM (CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system
setup parameters by erasing the CMOS RTC RAM data. The onboard
button cell battery powers the RAM data in CMOS, which include
system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the
cap on pins 2-3 for about 5~10 seconds, then move the cap back
to pins 1-2.
4. Reinstall the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC
jumper default position. Removing the cap will cause system boot failure!

AndrewJ · 23-02-2007, 18:58

Done that to the letter and nothing still all spins up wirres away like normal just the monitor remains on standby.

I don't get this the psu twin fans are spinning the HD wires into life and the rest of the pc works fine.

I've tried with Ram out and only single sticks. I've removed all unneeded stuff from it... I am totally and utterly baffled.

Cobbydaler · 23-02-2007, 19:00

Have you tried the monitor with the Dell Dimension?

Alien · 23-02-2007, 19:09

Quote:

Originally Posted by Felinix_Devotion

Done that to the letter and nothing still all spins up wirres away like normal just the monitor remains on standby.

I don't get this the psu twin fans are spinning the HD wires into life and the rest of the pc works fine.

I've tried with Ram out and only single sticks. I've removed all unneeded stuff from it... I am totally and utterly baffled.

Here's a thought: try turning it off [including on the PSU if it has a switch, otherwise unplug], then take the graphics card out, & try powering on the machine again. If the card's toast then it should give you some sort of error beep, if it stays silent my money would be on the motherboard or PSU.

This might not work, but if it doesn't beep without the card, try it with the HD disconnected [both data & power wires], as well as anything else [except for essential fans], so it's just mobo, CPU, & RAM. If it beeps then my guess would be the PSU is the culprit. If it still doesn't beep, it still could be the PSU, but without testing with another 1 I don't think there's a way to be 100% certain.

Quote:

Originally Posted by Cobbydaler

Have you tried the monitor with the Dell Dimension?

If it was the monitor he'd hear his system beep when it POSTs.

AndrewJ · 23-02-2007, 19:15

Yup in fact I am using the tft I use on my computer with the Dell right now.

I have tried the above diagram twice now, and no avail, It must be the gpu I must've borked something up when taking it out

but it's a fecking price tag I could do without just to find out wether the gpu was the problem.

---------- Post added at 19:15 ---------- Previous post was at 19:09 ----------

Just tried with no HD *nothing not even a beep *
Just tied with no ram *same as above*
Tried with no dvdrw drive *same*

All the times the computer and the gpu fires up with all fans yet the monitor gets no visual, the gpu fan wires alive and it sounds like the HD is booting up but I get nothing from the graphics card to the monitor.