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[Official] The AMD Radeon 7800 Owners Club - Page 230

post #2291 of 4099
Hello people,i have a question to do
I have the oportunity to buy a SAPPHIRE HD7870 OC for a good price NEW with warranty,but here is the problem,i have to worry about black screen problems ? or the problem is now solved and there aren't cards more with this problem ?
post #2292 of 4099
Quote:
Originally Posted by *ka24e* View Post

- Using an H70 (using a single Antec case fan on low setting as a puller on the rad) with a Dwood bracket for cooling.
would love to see a pic of this biggrin.gif
post #2293 of 4099
Quote:
Originally Posted by zubzero689 View Post

The 7870 has changed the way i game. I use to use a xbox to game but when i got my xfx 7870 i do all my gaming now on my pc. Games are a lot cheaper on the pc and there are time you get great deals. When i got my 7870 i got 3 games with it far cry 3, dirt3 and 2 worlds2 i play 2 out of the 3 of them.
i say go for it and good luck

It always depends on your preference. I always prefer pc gaming. Aside from being more powerful, I prefer using keyboard and mouse than game controllers. And of course, XFX 7870 looks great biggrin.gif
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post #2294 of 4099
Quote:
Originally Posted by Bobobearx View Post

Quote:
Originally Posted by momonz View Post

It's new year and the member list hasn't been updated yet. Can't wait to use the sig.

just too lazy to care about being a member of clubs.

here is mines

gigabyte hd 7870 windforce
>factory overclocked to 1100mhz/1200mhz
>my current settings 1225mhz/1280mhz (voltage is stock @ 1218mv, power limit is @ +20) should be stable, i used heaven dx11 and did a 2hour pass

Well the other thread starter added those who joined after me. smile.gif I guess there are a lot of 78xx users who wanted to join than what's on the actual members list.
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post #2295 of 4099
I didn't get the promo code, but it's not a big deal to me. I think you need to retrieve the code on or before dec 31. For never settle bundled games.
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post #2296 of 4099
Quote:
Originally Posted by tuxx View Post

Quote:
Originally Posted by *ka24e* View Post

- Using an H70 (using a single Antec case fan on low setting as a puller on the rad) with a Dwood bracket for cooling.
would love to see a pic of this biggrin.gif

Nothing to see really. It's just an Antec 120mm (blue led) case fan on low pulling air through the H70. The stock H70 fans were too loud for my liking, and one fan gets the job done very well.

The fan blowing down on the H70, VRM's and ram heatsink would also be an Antec 120mm (blue led) as well. Temps with a push/pull on the H70 would be insane. Probably in the mid / high 50's under load.
post #2297 of 4099
Has anyone else had any system crashes with these vertical gradient bars running down the entire screen? I've had 3 of those crashes in the past 2 days with my 7850. They have all happened while I've been playing Natural Selection 2. I've had this card for a ~3 weeks now and haven't had any problems until now.

I'll try to get a picture next time it happens to show what it exactly is.
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post #2298 of 4099
Quote:
Originally Posted by SchmoSalt View Post

vertical gradient bars running down the entire screen

Unstable memory OC, I had that when pushing for 1400+ on the memory. It looked stable when testing with 3DMark11 and Unigine, but it would give me the vertical lines while playing LA Noire. Lowering the memory OC to 1375 fixed that, but I later find out that 1350 gives me better bench scores so now I stick to that.
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post #2299 of 4099
Once again I am going to suggest very strongly that you drop those memory clocks down to around 1250. You will get the same (within 10 or so points), if not better, 3d mark scores.

Me and another member have tested this somewhat and confirmed. ~1250 is the peak performance. You will get worse performance around 1300, and get identical performance at around 1350 as the speed increases fast enough to offset memory checking. But thats all it is, an offset. The same performance can be had for a much lower clock with much more stability.

You guys are only adding instability for virtually no gains.

If you guys don't believe me, leave your core clock the same, and do 3dMark runs at: 1200, 1250, 1275, 1300, 1350. I promise that afterwards you'll realize its a waste to set memory higher than what I mentioned.
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post #2300 of 4099
Quote:
Originally Posted by kmac20 View Post

Once again I am going to suggest very strongly that you drop those memory clocks down to around 1250. You will get the same (within 10 or so points), if not better, 3d mark scores.
Me and another member have tested this somewhat and confirmed. ~1250 is the peak performance. You will get worse performance around 1300, and get identical performance at around 1350 as the speed increases fast enough to offset memory checking. But thats all it is, an offset. The same performance can be had for a much lower clock with much more stability.
You guys are only adding instability for virtually no gains.

If you guys don't believe me, leave your core clock the same, and do 3dMark runs at: 1200, 1250, 1275, 1300, 1350. I promise that afterwards you'll realize its a waste to set memory higher than what I mentioned.

Actually I have seen the most performance gain from overclocking the memory past 1250 so you are wrong.
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