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[Official] The AMD Radeon 7800 Owners Club - Page 271

post #2701 of 4099
I cant go higher because my voltage is maxed and I just have the basic cooling...
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post #2702 of 4099
The 7800's are very power efficient cards, but wonder if under-clocking would drop power consumption without noticeable degradation to game play. By the way i am an overclocker, just curious.
post #2703 of 4099
Don't think so but have you tried undervolting and keeping the clocks same?? Lowering the clock for less power consumption wouln't even really be worth it.
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post #2704 of 4099
Quote:
Originally Posted by DarkShooter View Post

Does anyone know if this card has any reported issues with older motherboards that have PCI Express 2.0 lane (running at x16 ofc)? Aside from the bottleneck in bandwidth speed and so on

anyone?
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post #2705 of 4099
Quote:
Originally Posted by DarkShooter View Post

anyone?

I have a 7850 on a PCI-E 2.0/3.0 (2.0 cause of my i3 2120 sandybridge) running at X16
    
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post #2706 of 4099
Quote:
Originally Posted by toolio20 View Post

Quote:
Originally Posted by *ka24e* View Post

Well you definitely seem like you know what your doing, but your card just doesn't like being flashed I guess. Honestly tho, your not missing too much with the 1.3v limit.

I was stable w/ 1250 / 1450 @ 1.225v and the stock BIOS. With the Asus BIOS I'm stable at 1300 / 1500 @ 1.26v, but that would be about it. I can bench above 1300/1500 but even with 1.3v its only barely bench-able at around 1330-1340mhz. Getting to 1350 is impossible and anything above 1500 on the memory usually results in a crash.
How am I honestly not missing too much? You got an extra 50 on both core and mem with the additional .04v - not too shabby.

Maybe I'll give it one last try this weekend...thanks for the reply, btw.

Well, my card seems to clock better than most 7850's. Anything over 1.26v doesn't really increase stability anyways. From what I hear, anything in the 1200 range is very good and most won't do anything over 1250 even with 1.3v. I think mine could actually go higher than 1300/1500 24/7, but I need to cool the VRMs better to get there.

What kinda clocks are you getting now?
post #2707 of 4099
Quote:
Originally Posted by DarkShooter View Post

Quote:
Originally Posted by DarkShooter View Post

Does anyone know if this card has any reported issues with older motherboards that have PCI Express 2.0 lane (running at x16 ofc)? Aside from the bottleneck in bandwidth speed and so on

anyone?

I ran my 7850 2GB on a 890FXA-UD7 PCI-E 2.0 X16. No issues at all.
post #2708 of 4099
Quote:
Originally Posted by DarkShooter View Post

Does anyone know if this card has any reported issues with older motherboards that have PCI Express 2.0 lane (running at x16 ofc)? Aside from the bottleneck in bandwidth speed and so on

Due to my Sandybridge CPU i believe my 7870 will be running in x16, thus far this has not been an issue, though there may be a slight reduction in performance compared to running it in PCI Express 3 as intended, based upon my 3D Mark scores compared to others with similar cards.
post #2709 of 4099
Quote:
Originally Posted by DarkShooter View Post

anyone?

No. But there's also no bottleneck on 2.0 because it doesn't fully saturate it anyways.
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An Angry Robot
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post #2710 of 4099
Quote:
Originally Posted by DarkShooter View Post

anyone?

Running mine on an i5 750 PCI 2.0 motherboard. No problems with my 7870 XT.
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