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[Official] The AMD Radeon 7800 Owners Club - Page 204

post #2031 of 4048
Ok got my 24/7 locked in at 1140/1450@1.225v on 12.11ccc+trixx, switching from AB to trixx fixed all my compatibility problems. After benching a 2400ish in Unigine 3.0 I maxed out the volts to see what I could top out at.
bench.jpg
the left bench is all stock clocks and the right is 1200/1500@1.3v

monitor.jpg
changed my fan speed curve so its a bit quieter at the expense of heat, but it only got that hot when maxed out.

Thanks to the thread for being a wealth of information that helped me finish my overclock.
post #2032 of 4048
What's a good temperature for running the 7870 underload. Better yet, while gaming my XFX 7870 can get up to 58c steady with overclocking. Is that too much for the card?
post #2033 of 4048
Quote:
Originally Posted by totalownership View Post

What's a good temperature for running the 7870 underload. Better yet, while gaming my XFX 7870 can get up to 58c steady with overclocking. Is that too much for the card?

No you're good until about 90 C, as far as xfx tech support is concerned. 80 is really the highest I wold personally ever take it; only saw it that high in furmark....

You still have headroom.
post #2034 of 4048
http://www.techpowerup.com/gpuz/zvxnb/
i love me 7870 so much better then my gtx 560 and it cost the same
post #2035 of 4048
I am down to low 40's @1250MHz again, the block just needed re-sitting smile.gif

Sent from Xperia Pro
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Viggen Blue
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Lamptron FC2 Fan Controller Alphacool Cape Corp Coolplex Pro 25 LT Reservoir EK-FC R9-290X Phobya Xtreme Nova 1080 with 4x (push only) Sil... 
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Mayhems Pastel Blueberry Coolant XSPC EX 280 with 4x (push/pull) Yate Loons D14S... Alphacool NexXxos XT45 140mm Full Copper with 2... Alphacool NexXxos XT45 Full Copper 240mm with 4... 
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Alphacool NexXxoS ST30 Full Copper 120mm with 2... EK Supremacy CPU Acetal Nickel Waterblock Windows 7 64bit Hanns-G HS233 
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Toshiba Regza 32" CM Storm Quickfire Rapid (Black Cherry MX Switc... OCZ ZX Series 850W NZXT Switch 810 Black 
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post #2036 of 4048
My sapphire 7870 was sent off this morning. Now I'm using A borrowed 5450 till it comes back... rolleyes.gif

Hmmmm, is it possible to use a 7950 as a main, and 7870 as a secondary on a 2011 board?
post #2037 of 4048
Quote:
Originally Posted by XNine View Post

My sapphire 7870 was sent off this morning. Now I'm using A borrowed 5450 till it comes back... rolleyes.gif

Hmmmm, is it possible to use a 7950 as a main, and 7870 as a secondary on a 2011 board?

You can plug as many different cards as you have got slots, but 7870 and 7950 will not work in CrossFire mode.
I am currently running 2 card setup HD7850+GTS450 smile.gif
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post #2038 of 4048
Quote:
Originally Posted by chrisf4lc0n View Post

Quote:
Originally Posted by XNine View Post

My sapphire 7870 was sent off this morning. Now I'm using A borrowed 5450 till it comes back... rolleyes.gif

Hmmmm, is it possible to use a 7950 as a main, and 7870 as a secondary on a 2011 board?

You can plug as many different cards as you have got slots, but 7870 and 7950 will not work in CrossFire mode.
I am currently running 2 card setup HD7850+GTS450 smile.gif

So will the secondary card work as just extra processing? I understand they won't run crossfire, just wondering if they will work together at all or what benefit I will get over just running a 7950?
post #2039 of 4048
You need special apps to do that. OpenCL can do that, if people focus on it more. Example, you can encode a video with your second card while playing games with the first one at the same time. There should be some apps already around that let you chose which card to use with encode.

It's also about BIOS>OS too. In the old times you couldn't have 2 cards, the system or Windows wouldn't boot and they had no options to select which card to use.
Edited by Catscratch - 11/9/12 at 11:10am
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Intel Evilnow
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post #2040 of 4048
I've built a few systems for clients with multiple low end GPUs just to run 4 to 6 monitors in extended display for workstations. They don't crossfire or SLI but they play nicely together.
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