nissanman
Posts: 247 +2
Hi all.
I couple of months ago, i finished building my new PC. Everything went smoothly. I bought an HIS 5770 for it but i was having issues where the fan would randomly stop and start. However, the card overclocked very well and voltage tweaking worked fine.
Not happy with the fan stopping and starting, i sent the HIS back and got an Asus 5770 Cu Core as a replacement (requested by me). Upon installing the card, everything worked fine, until i tried overclocking it. The card refused to overclock higher then 50mhz. The voltage tweak feature on the card also did not work. I just assumed that the Asus card i got just wasnt good at overclocking and the voltage tweak not working was due to outdated software.
Anyway, i now have a second cu core 5770 in my system and have found that my computer will not sustain gameplay for much longer then 45 minutes before my computer either BSOD's or the screen goes brown with vertical lines, and this is at default clocks. I tried removing the first card and using the second as a single card, but it to is unstable, overclocks just as bad as the first card and voltage tweak does not work, even with up to date software, which seems to rule out a faulty video card. I have been getting random crashes ever since i got my first asus card also. The temps on both cards are fine, not usually going above 70c while gaming.
What could be the problem here? I have a Gigabyte GA-890GPA-UD3H motherboard. Could the cards be incompatible with the board? My power supply is a Corsair HX650W, so its way more then enough for my setup. Looking online, this card should be able to overclock very well, but like i said, mine wont oc very well at all and are unstable even at stock clocks.
Any help would be greatly appreciated.
Thanks.
Nathan.
Edit: Just to clarify, both cards produce the same set of problems, doesnt matter what card i use as the single. Which seems to rule out a problem with either card (i doubt they will both be faulty in the exact same way.)
I couple of months ago, i finished building my new PC. Everything went smoothly. I bought an HIS 5770 for it but i was having issues where the fan would randomly stop and start. However, the card overclocked very well and voltage tweaking worked fine.
Not happy with the fan stopping and starting, i sent the HIS back and got an Asus 5770 Cu Core as a replacement (requested by me). Upon installing the card, everything worked fine, until i tried overclocking it. The card refused to overclock higher then 50mhz. The voltage tweak feature on the card also did not work. I just assumed that the Asus card i got just wasnt good at overclocking and the voltage tweak not working was due to outdated software.
Anyway, i now have a second cu core 5770 in my system and have found that my computer will not sustain gameplay for much longer then 45 minutes before my computer either BSOD's or the screen goes brown with vertical lines, and this is at default clocks. I tried removing the first card and using the second as a single card, but it to is unstable, overclocks just as bad as the first card and voltage tweak does not work, even with up to date software, which seems to rule out a faulty video card. I have been getting random crashes ever since i got my first asus card also. The temps on both cards are fine, not usually going above 70c while gaming.
What could be the problem here? I have a Gigabyte GA-890GPA-UD3H motherboard. Could the cards be incompatible with the board? My power supply is a Corsair HX650W, so its way more then enough for my setup. Looking online, this card should be able to overclock very well, but like i said, mine wont oc very well at all and are unstable even at stock clocks.
Any help would be greatly appreciated.
Thanks.
Nathan.
Edit: Just to clarify, both cards produce the same set of problems, doesnt matter what card i use as the single. Which seems to rule out a problem with either card (i doubt they will both be faulty in the exact same way.)