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[Official] The AMD Radeon 7800 Owners Club - Page 168

post #1671 of 4099
Quote:
Originally Posted by mojoe24 View Post

I don't know my room temp but it's been in the 90s here.

Do you have central air conditioning? Whats the thermostat say?
post #1672 of 4099
Quote:
Originally Posted by stickg1 View Post

I would expect it to idle from 39-45C depending on airflow in your case with multiple monitors. It's built into AMD's drivers to not the reduce the memory clock when you use extended displays because it may cause a screen flicker. So your card stays full power all the time. This causes higher idle temps. When I'm not using one of my monitors I just disable it in "Screen Resolution" because I like seeing my card in the low 30Cs. This isn't necessary though. The 51C you reported seems high but the 46C would be normal. Whats the airflow like in your case and more importantly what is the room temp around your PC?

My card seems to be perfectly capable of dropping its frequency both on the core as well as on the memory when not under high load. It's atm 300 MHz core and 150 MHz memory, I have 3x1 portrait Eyefinity group attached atm to the 7870 + a single auxiliary display attached to the 6770. My idle temp is about 35 .. 40 C. The card is Club3D 7870 eyefinity 6 (with 6x mDP connectors). Although I must say its possible the card might be fooled to think it has only single screen connected bcos the three on the 7870 are combined into eyefinity array.
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post #1673 of 4099
Yes it works in Eyefinity. You have multiple displays to form one larger display. when you run them as extended displays your mem clock doesn't drop.
post #1674 of 4099
Quote:
Originally Posted by stickg1 View Post

Yes it works in Eyefinity. You have multiple displays to form one larger display. when you run them as extended displays your mem clock doesn't drop.

Seems like you are indeed correct. I just attached the 4th auxiliary screen to the 7870 to test it out and indeed, the memory clock jumped to 1200 and is staying there.
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post #1675 of 4099
Quote:
Originally Posted by Carniflex View Post

Seems like you are indeed correct. I just attached the 4th auxiliary screen to the 7870 to test it out and indeed, the memory clock jumped to 1200 and is staying there.
I wouldn't lie to you my fellow 7800 brother! wink.gif
post #1676 of 4099
Gonna grab a powercolor 7870 for crossfire in the next two weeks. One 7870 is good but I want more then a SSD and I'm good till haswell
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post #1677 of 4099
Quote:
Originally Posted by stickg1 View Post

I wouldn't lie to you my fellow 7800 brother! wink.gif

I had always wondered why my memory clocks didn't drop on any of my AMD cards... That explains it! biggrin.gif
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post #1678 of 4099
Can i still join the club?
post #1679 of 4099
Yeah one day I was complaining about my old 5850 and the 50C idle temps. My friend said "unplug the 2nd monitor" and the temp dropped to 35C. So now I just disable the screen I'm not using. I really only use the 2nd screen for watching sports while I browse or play games.
post #1680 of 4099
so im thinking of upgrading my CF 6870 to a 7870.

i usually buy Asus or HIS, but this time i wanna go somewhere else.

XFX: http://www.newegg.com/Product/Product.aspx?Item=N82E16814150605

or

MSI: http://www.newegg.com/Product/Product.aspx?Item=N82E16814127681

or

Gigabyte: http://www.newegg.com/Product/Product.aspx?Item=N82E16814125418

both would work perfectly. but does anyone have any reasons for one or the other. Also what kind of performance gain would I get?
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