5870 running at 421 mHash/sec!

[wolfangel91]

hi,
Here is my contribution, just for information:
I've a HD5870 XFX and up to 429-435Mh/s (it varies) with 1000/300 0.950v and phoenix 1.1 with  VECTORS AGGRESSION=7 WORKSIZE=128 BFI_INT (with aggression=12 I loose some mh/s..)
OS windows 7 64 ; 85°C after 1/2h

Did you use msi afterburner to undervolt de gpu? Did you try to get it any lower? How did you test for stability?
Thank you in advance.

I use AMD GPU Clock Tool to undervolt. I tried 1030/300 @0.950 but got some crashes.

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[phenom]

I've gone from 360 mh/s to 405 mh/s.

I've got one of those XFX cards which unfortunately you cannot overvolt

Running at 975 core, 300 mem.

Thanks for the info.

[keybaud]

I've gone from 360 mh/s to 405 mh/s.

I've got one of those XFX cards which unfortunately you cannot overvolt

Running at 975 core, 300 mem.

Thanks for the info.

You can overvolt if you flash with a different BIOS, but you can't change voltage 'on the fly'.

The ASUS is usually used and is at http://www.techpowerup.com/vgabios/index.php?page=1&architecture=ATI&manufacturer=Asus&model=HD+5870&interface=&memSize=0

Having said this, I couldn't get my XFX stable at 975 with a higher voltage anyway, so I'm running stock volts at 965/300. It uses less power this way, too.

[Grinder]

You can overvolt if you flash with a different BIOS, but you can't change voltage 'on the fly'.

I wouldn't advice anybody to do this. The reason some cards can't change voltage is often that they use a different voltage controller that doesn't support it. Worst case you may end up bricking your card because the BIOS isn't compatible with it.

[Xer]

Hava a look a the Sapphire Trixx utility, it let me overvolt my  non ref xfx 5850. However be carefull most reference coolers tend to skimp on the vrm cooling so overvolting isnt exactly the best idea.

[Enky1974]

I run stable at 950/700 stock voltage, phoenix + poclbm aggression 6, 386 mh/s, temp at 74 fan 57% very quiet. Sapphire 5870 1gb ddr5

[miningnew]

I can score about 340 mhash with my single vtx 5870 on guiminer with
-v -w 128

So do u thinck there is a better miner?

[rograz]

XFX ref (bought at release) with thermalright T-rad 2 + the VRM cooler that goes with it, been running at 1000/300 1.2V giving 440 Mhash/s (catalyst 11.5 with sdk 2.1 poclbm) for about 4 months now, It can do 1100 stable for mining almost breaking the magic 500 Mhash limit but it needs 1.35V for that and i don't trust it to survive for many days/weeks with those settings :p

[XPiRX]

The highest I can push my XFX 5870 is ~372-375Mhash at around 985 Core. Anything higher and it starts freezing and crashing.

Well done

Wow what model number? I have a ZNFC XFX 5870.  Stock settings I get about 358-360MHash/s.  Overclock to 925 with 1.163 (Highest stable. Can get 930 but locks up after several hours of use) and I get just over 400MHash/s

Artic Cooling Accelero Xtreme Heatink - get 56c displayIO temperature (62 memory and 60 shader).

[eskil]

hi guys,
I was just wondering how you manage to keep your cards this cool?!
I got two xfx 5870  running at 860/300 stock voltage and I can´t get the temperature down.
My temperature after a day of mining is between 83C - 86C the cards fans are working their asses of at 100%
How can that be? This is my current setup:

https://i.imgur.com/JE0kWl.jpg


Maybe you got some tips?

Thank you!

[phenom]

Anyone running 2 x 5870 in crossfire in Windows 7? I can get them to run at 970 but I find that from time to time the system will BSOD, yet the temps are fine. Highest it ever reaches is 74c.

Is it possibly the crossfire setup being the cause? The reason why I'm using a crossfire setup is because it's running on Windows and I haven't got any dummy plugs.

1x5870 + 970/300 on Windows gets me 412 mh/s in phoenix.

I'm currently running the crossfire setup at 950/300 at the moment to see if this prevents the BSOD.

[Kehaar]

hi guys,
I was just wondering how you manage to keep your cards this cool?!
I got two xfx 5870  running at 860/300 stock voltage and I can´t get the temperature down.
My temperature after a day of mining is between 83C - 86C the cards fans are working their asses of at 100%
How can that be? This is my current setup:

https://i.imgur.com/JE0kWl.jpg


Maybe you got some tips?

Thank you!

my room is quite cold, and my case has space for a fan right over the gap between the two (looks like its similar spacing). Its not a very good fan and I might buy a better one, but right now, the cards run at about 75-80C on stock volts, but thats because I changed the fan speeds to be at around 60% (its in my bedroom, and I'd rather have it considerably quiter than a few degrees cooler).

the only thing you can do is to either do the same or get spacers.

[Mousepotato]

ATI HD5870
Catalyst 11.5
SDK 2.4
975MHz core / 333MHz memory
1.250v (not sure how to change this lower, it automatically bumps up when I change core/memory freq)

Phoenix parameters: -u device=0 VECTORS BFI_INT AGGRESSION=14 WORKSIZE=256 -k phatk

430.xx MH/s, stable over the past 24+hrs
69-70C @ 50% fan speed with case-cover on, house A/C thermostat set at 78F

Everybody told me to try 300MHz for the memory and that kicked the MHz up quite a bit.  After a little experimenting I found the sweet spot to be 333MHz (using ATI GPU Tool) which increased the hash rate by about 6-8 MH/s over 300MHz memory clock on my system. YMMV.

[mlouca]

what motherboard and psu are you using for 3 5870s

[ian2000gsxr]

I'm getting 83C temps and 330Mhashes/sec on my Asus matrix 5870 2GB clocks @ 982/1245

Is that normal? Cause from reading here it doesn't seem like it is?

Pretty sure these cards just run hotter than normal even with the jet engine of a fan they have.
I'm currently running one at 427 Mhash/s and have a 2nd on the way for crossfire.  Temp is at 83C in an 29C degree room.  This is with the fan at 100% and the case open with a large window fan pointed at the card.  I'm thinking of taking the card apart and reapplying thermal compound.
Clocks are 990/600 set through the Catalyst Control Center.  I tried using the Asus itracker software but it causes more crashes than it's worth.
11.4 drivers with SDK 2.4 phoenix 1.5 phoenix rising 1.45 with aggression set to 14, VECTORS and WORKSIZE=128 phatk is checked and so is HD5xxx

[klayus]

i'm getting 420MH/s per card - 930MHz core 300MHz memory bfi_int Vectors aggression=11 phatk kernel - phoenix miner
my problems is with the cooling as well. the top card can go as high as 100degrees C while to lower one stays at about 70C
my problem is with the spacing. i think i got 4mm between the cards. that changes today as I'm getting a different motherboard.

[Uhrenknecht]

Hey,
I'm sitting here with a Gigabyte 1GB 5870 and my temperature goes to 98° after 30 sec of mining. Fan is running 100% at 3600 RPM,

got about 300 mH/s which drops down to 200 after the card gets too hot. I have only one card installed, and no additional fans. stock cooling at all.

Board and CPU are sitting at ~ 41°C, no problems there.

Running Windows 7.

Would I ever get a decent temperature with an additional fan at the front bottom of my case or is my card somewhat damaged?

[gat3way]

I have 2x5870s. Running @970MHz, I get about 418MH/s per GPU using hashkill, running at 980MHz, I get about 426MH/s. No memory downclocking involved. Fan speed at 80 keeps them below 65C, anyway that kinda depends on ambient temperature.

[mjoz]

How do you manage 1000MHz, my many 5870 in ubuntu wont accept any clock setting over 900MHz, at which they are perfectly stable.

You use atiflash to read the bios and use Radeon Bios Editor to modified the clock rates.  Then reflash.  Limits?! We don't need no stinking limits.

[mmortal03]

My Gigabyte 5870 Super Overclock goes to 1000 easily, probably because it's non-reference, with an extra fan and higher quality bin they pulled it from. It's already factory overclocked to 950.  For everyone using 5870s, don't forget to knock your memory clock down to the sweet spot you find for hashing with your setup, somewhere between 300 and 400. A rule of thumb is GPU clock / 3 + 14, but I've seen it vary from person to person.