2 cards doa

[warjunkie]

hi i recently purchased a saphire 6770 from newegg and the card was defective on arrival , so i sent back for a replacment and well this one worked fine for 2 days and then the moniter started flickering and eventually locks up , which the first card did aswell . what i am wondering is if this is a video card issue or is there something in my computer causeing this ?
my specs are as follow's

Operating System: Windows Vista™ Home Basic (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.110617-0336)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-MA785GM-US2H
BIOS: Award Modular BIOS v6.00PG
Processor: AMD Phenom(tm) II X4 955 Processor (4 CPUs), ~3.2GHz
Memory: 3326MB RAM
with a 650 w psu , im realy at a loss have sent the 2nd card back for refund

 

[clutchc]

More than likely, the cards are fine. Did you uninstall the old driver before installing the new one? With AMD cards, this is required. Are you using the correct driver?
Also, your system may need a good 'cleaning'. Download and run CCleaner. Do the clean and registry parts. re boot. If CCleaner found a lot of garbage, repeat.
http://www.piriform.com/CCLEANER

 

[dalauder]

What's the PSU--brand and model? How many Amps are on the +12V rail? Sorry, I always go the PSU first.

Let us know if the driver thing fixed it.

 

[warjunkie]

i always uninstall the old driver first before proceeding and i dont know how many amps there are

 

[dalauder]

If you look at the Power Supply inside of your case, it will have all of the info I just asked about. Are there multiple 16x PCI-e connectors on your motherboard?

 

[billj214]

Also check your temps and make sure the card is getting enough airflow. The primary cause for artifacts on a GPU is heat and second is drivers, typically low amperage on 12v rail will just kill the card all together so definitely make sure you have enough amps and do not use PCI-E 12v adapters, only the plugs that come with the PS.

 

[swifty_morgan]

check your monitor cable. could be bad, might not be secure on either end. PCI-e slot could be bad.

 

[warjunkie]

@ dalauder it is 50 amps on the 12v rail and the card is getting enough flow hell ive had the side of the case off past day , and have been using the plugs that came with the psu , its a cooler master silent pro m600 i know its a few years old but it still should have enough to deal with the newer cards , sorry for saying it was 650 watts

 

[warjunkie]

sorry for double post if the pci-e slot was bad my ati radeon 4850 wouldnt work perfectly ? , i have none of these problems with this card in.

 

[warjunkie]

bump

 

[warjunkie]

any1 at all have a solution ?

 

[clutchc]

any1 at all have a solution ?

Have you tried running Driver Sweeper from Safe Mode? Could be a remnant of an old driver is causing problems.

 

[dalauder]

Windows Update reloaded my page and cost me a longer response so you get this:

Flickering could be the monitor. Try another one.

Does the graphics only crash in Windows? Try the bios, Memtest86+, or Linux Mint (easier than you think w/ no install required).

Please describe the problem more thoroughly? Does it error out after a time or during load?

 

[billj214]

I think your power supply is actually over-rated, try a new one.
Something like Corsair TX650, 750 or 850.

I have never had good luck with Cooler Master and one actually killed my GTX 280 out of warranty, will never buy Cooler Master again!

 

[warjunkie]

The problem is i get the card uninstall old drivers install correct drivers and the card works fine for 2 days , i dont oc it or nothing , it is the saphire ati radeon 6770 vapor -x cooling , card works fine for 2 days no sign of trouble plays all games and everything on the second day the moniter flickers and eventually locks up with a solid grey or black screen with lines through it.

 

[warjunkie]

bumity bump bump

 

[billj214]

Here are your options:

Rebuild your PC, clean install, update all drivers etc. If you still have problems then go buy a new reputable power supply.

Good Luck!

 

[dalauder]

If it works at first, then stops working, then consistently messes up, check if you have any auto update settings screwing things up. I think a new PSU might be good though.

 

[clutchc]

Did you ever run Driver Sweeper from Safe Mode yet?
http://phyxion.net/item/driver-sweeper.html

 

[dalauder]

OP--you don't need to bump your post. Just keep posting and we'll keep giving suggestions, bumping back up. We can't help you though if you don't come back and post.