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Author Topic: HD5850 @ 340Mhash/s  (Read 42153 times)
Kluge
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May 18, 2011, 07:37:15 PM
 #81

I have 8 ASUS 5850 cards running and not a single one is unstable until it goes past 910MHz (a couple reach 940 MHz). They aren't over-volted and run under 60*C, much of that due to a smaller form factor and otherwise good thermal design -- there's virtually no risk of any dying due to OCing.

Have you had a look at what's their default volatages ?

Sapphire's one are at 1.088,  I have a hard time pushing them beyond 840 stable (at that voltage)
1.168v

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May 18, 2011, 11:32:03 PM
 #82

How do you OC more than one GPU with TriXX?  That's not in Xfire
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May 19, 2011, 08:27:26 AM
 #83

@Gladiator, turn off hardware acceleration on your flash movies if you have not done that. (Right click youtube video, settings, uncheck hardware acceleration). That helped me with crashes.
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May 20, 2011, 03:54:15 AM
 #84

How do you OC more than one GPU with TriXX?  That's not in Xfire

Mine are in Xfire but I'm not sure whether changing the voltage actually works. GPUZ doesn't report the voltage change.

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May 20, 2011, 04:00:59 AM
 #85

How do you OC more than one GPU with TriXX?  That's not in Xfire

Mine are in Xfire but I'm not sure whether changing the voltage actually works. GPUZ doesn't report the voltage change.
Yeah, on my Sapphire HD 5830 with NO Xfire, GPU-Z don't report the voltage change.
However, I was able to OC further with higher voltage on Trixx, so I guess I really did up it.
Next step will be flashing the BIOS with the higher voltage, as the RBE shows the voltage register is available for changes.

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May 20, 2011, 04:56:58 AM
 #86

@Gladiator, turn off hardware acceleration on your flash movies if you have not done that. (Right click youtube video, settings, uncheck hardware acceleration). That helped me with crashes.
+100

This saved my Mh/s. I had to reset O.C values to watch youtube or my computer would crash.
and I just found the VLC hardware acceleration setting so I never have to slow my card down again Cheesy

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May 20, 2011, 02:27:51 PM
 #87

I got my XFX 5850 at about 360 MH/s at 970/1250. I thought this was a "normal" speed.

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May 20, 2011, 02:30:39 PM
 #88

I am getting 360 at 900 core - phoenix w/ 2.1 SDK  Grin

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May 20, 2011, 03:45:54 PM
 #89

Celeron 335 with s775 adapter, an old ECS P4M900T-M2, onboard sata, usb, lan not functional lol
HD5850 @ 950/300 @1.185v, Phoenix 1.47 + kernel mod

11.5a + SDK 2.1: 372Mhash/s @4-10% CPU
11.5a + SDK 2.2: 367Mhash/s @4-10% CPU
11.5a + SDK 2.3: 366Mhash/s @90% CPU
11.5a + SDK 2.4: 370Mhash/s @90% CPU

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May 20, 2011, 03:58:10 PM
 #90

Should this card be comparable? I dont know a lot about hardware but it uses the same gpu http://www.newegg.com/Product/Product.aspx?Item=N82E16814121375&cm_re=Radeon_HD_5850-_-14-121-375-_-Product

chungenhung
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May 20, 2011, 04:04:58 PM
 #91

Should this card be comparable? I dont know a lot about hardware but it uses the same gpu http://www.newegg.com/Product/Product.aspx?Item=N82E16814121375&cm_re=Radeon_HD_5850-_-14-121-375-_-Product
Yes, but each card has different OC potential.

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May 20, 2011, 05:24:55 PM
 #92

My Sapphire HD5850 Xtremes go up to 870/290 at stock voltage of 1.088. Unfortunately the temperatures would go to 870°C too, if I let them. I wonder what cooling is needed for 900+. Ice-Water?

My cards are stacked one above another (with spacers), probably would go higher higher too with an empty slot in between.

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May 20, 2011, 06:26:18 PM
 #93

My Sapphire HD5850 Xtremes go up to 870/290 at stock voltage of 1.088. Unfortunately the temperatures would go to 870°C too, if I let them. I wonder what cooling is needed for 900+. Ice-Water?

My cards are stacked one above another (with spacers), probably would go higher higher too with an empty slot in between.

That is not possible, you would have already melted up the whole PC

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phelix
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May 20, 2011, 10:53:59 PM
 #94

I was kidding about the 870°C and meant 900+Mhz.  Roll Eyes

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May 21, 2011, 08:05:44 AM
 #95

I have 350MH/s with my brand new 5850.
Core: 900
Memory: 1000
Fan: 80%
Temperature: 75C

Using Phoenix 1.47 (-k phatk VECTORS WORKSIZE=128 AGGRESSION=8 BFI_INT)

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May 21, 2011, 10:48:18 AM
 #96

75'C is too much, IMO for 24/7 load.
try keep it under 70'C or preferably under 65'C :[
PC cases with 3-4-5 120mm/140mm mounts inexpensive and start cost from $30. so put some investment there !! 30+10x4~$70 for 10-15-20 temp drop isn't that much ? :-|
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May 21, 2011, 05:09:40 PM
 #97

75'C is too much, IMO for 24/7 load.
try keep it under 70'C or preferably under 65'C :[
PC cases with 3-4-5 120mm/140mm mounts inexpensive and start cost from $30. so put some investment there !! 30+10x4~$70 for 10-15-20 temp drop isn't that much ? :-|
Wrong.
Modern GPUs can handle minimum of 105C.
I ran 9800GX2 before, and it runs 105-110C. Been running 24/7 for over a year, and no problem at all.

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May 21, 2011, 05:12:12 PM
 #98

75'C is too much, IMO for 24/7 load.
try keep it under 70'C or preferably under 65'C :[
PC cases with 3-4-5 120mm/140mm mounts inexpensive and start cost from $30. so put some investment there !! 30+10x4~$70 for 10-15-20 temp drop isn't that much ? :-|
Wrong.
Modern GPUs can handle minimum of 105C.
I ran 9800GX2 before, and it runs 105-110C. Been running 24/7 for over a year, and no problem at all.
"can't handle"!="work efficient/long/reliable" and thats true even for Nvidia junk.
even for gaming workload, let alone 24/7 95% GPU saturation.
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May 21, 2011, 05:42:48 PM
 #99

75'C is too much, IMO for 24/7 load.
try keep it under 70'C or preferably under 65'C :[
PC cases with 3-4-5 120mm/140mm mounts inexpensive and start cost from $30. so put some investment there !! 30+10x4~$70 for 10-15-20 temp drop isn't that much ? :-|
Wrong.
Modern GPUs can handle minimum of 105C.
I ran 9800GX2 before, and it runs 105-110C. Been running 24/7 for over a year, and no problem at all.
"can't handle"!="work efficient/long/reliable" and thats true even for Nvidia junk.
even for gaming workload, let alone 24/7 95% GPU saturation.
Unless you have something to back that up, otherwise you are just spreading false rumors.
I own and run all my nVidia GPUs at 99-100% usage (as measured by GPU-Z). It runs folding @ home projects.
I have used 8800GS, 8800GT, 9800GT, 9800GTX, 9800GX2, 9600GSO, GTX295, GT240, GTX 260, GTX 460.
All high end cards have reached 90C and above, and no problems at all. And all running 24/7 for over a year.
Just go to folding@home forums and you will see tons of people running at such high temperatures.
How hot do you think tesla clusters reach when they are packed together in a server rack? I would tell you well over 90C if not 100C+.

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May 21, 2011, 05:58:30 PM
 #100

my configuration is:

HD5850 extreme
Guiminer
flag -v -f10
Catalyst 11.5
SDK 2.1
core 900MHz
mem 300MHz
vcore 1.168
temp 63ºC

getting  360Mhash/s Cool


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