I have two Radeon HD 5770's in CrossFire. They run games fine, and I get the performance boost that I expect. However, since my second card is starved for air (using a mid-tower and the positioning of the PCI-E slots on my motherboard isn't very good), it runs fairly hot. So I'm doing two things, first trying to increase the fan speed on the GPU and second making a custom intake/outtake fan rig on the ventilation holes in the back of my case.
The latter is irrelevant, but when I go to increase fan speed on my second 5770 nothing happens. Not to mention that everything is shown as 0. My clock speed, memory speed, and temperature are all at 0 on my second card. Overclocking my first card runs fine, however.
When selecting the card, I'm using the drop-down menu with the label "Select the GPU to configure:". I don't use the top-most drop-down menu since my second card doesn't appear there. I don't know why, but that's just the way it is.
It might be that I'm using cards from two different manufacturers. I got one from Sapphire on Newegg (w00t) and the other from Best Buy (I get to pay an extra $40 to avoid waiting). They both have the same GPU fan if it means anything, the Sapphire one just has the logo on it.
I haven't tried to switch the slots that the cards are in, but I will if someone suggests trying it. I have my first card in my PCI-E 1 slot, and my second card in my PCI-E 4 slot. I'm not sure if I'm supposed to have them both in adjacent spots, but I don't think that should matter.
Screenshots of ATI Overdrive:
The latter is irrelevant, but when I go to increase fan speed on my second 5770 nothing happens. Not to mention that everything is shown as 0. My clock speed, memory speed, and temperature are all at 0 on my second card. Overclocking my first card runs fine, however.
When selecting the card, I'm using the drop-down menu with the label "Select the GPU to configure:". I don't use the top-most drop-down menu since my second card doesn't appear there. I don't know why, but that's just the way it is.
It might be that I'm using cards from two different manufacturers. I got one from Sapphire on Newegg (w00t) and the other from Best Buy (I get to pay an extra $40 to avoid waiting). They both have the same GPU fan if it means anything, the Sapphire one just has the logo on it.
I haven't tried to switch the slots that the cards are in, but I will if someone suggests trying it. I have my first card in my PCI-E 1 slot, and my second card in my PCI-E 4 slot. I'm not sure if I'm supposed to have them both in adjacent spots, but I don't think that should matter.
Screenshots of ATI Overdrive: