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Author Topic: 5870 not hashing in new computer - Stream 2.1 installed  (Read 5529 times)
theGECK
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March 01, 2011, 05:20:44 PM
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Anybody have any tips/tricks for using the 5870? I'm equally excited for the mining possibility, and also for the possibility to play games (such as Half Life 2) on a higher graphics setting.

I'm planning on installing the bare minimum for drivers/etc needed to get the card running, as I don't like having extra programs running in the background. Does that sound like a good plan?

EDIT: Topic title changed

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March 01, 2011, 05:54:56 PM
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Install card. Install drivers. Go for it. There really isn't much else to do but that.

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March 01, 2011, 05:58:55 PM
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Install card. Install drivers. Go for it. There really isn't much else to do but that.
And get started quickly, because the hashing difficulty factor has been rising every 10 to 14 days.
theGECK
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March 01, 2011, 06:20:18 PM
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Hm...5870 plugged in, drivers installed, no OpenCL/CUDA support. Going to the webpage for newest drivers.

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theGECK
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March 01, 2011, 06:53:30 PM
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New drivers installed, 555.4Mhash/s.  Shocked

It went down to 351Mhash/s while I'm typing this. I was really hoping I'd gotten a 5970 shipped to me by mistake.

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Ownski
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March 01, 2011, 07:28:29 PM
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Did you get the one of newegg? The 2GB eye-finity sapphire card?

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theGECK
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March 01, 2011, 09:20:24 PM
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Yes, I got it from there. I have now gotten more hashes in 2.5 hours than I have in the last 2 days.

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Ownski
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March 01, 2011, 09:41:54 PM
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Are you solo mining? whats your average khash?

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theGECK
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March 01, 2011, 09:55:36 PM
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I've been pool mining, so I'm still doing that. And I haven't been going long enough to get an average hash rate, but it seems to be ~300, give or take some depending on how I'm using my computer.

And this card is much quieter than the old card I was using, even when mining.

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Beremat
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March 01, 2011, 10:17:13 PM
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haha, I literally installed my 5870 five minutes ago. What a coincidence. Mine is getting only 220mhash/s, I'm suspecting it's because I'm running Stream 2.3. Anyone know how to downgrade successfully?
theGECK
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March 01, 2011, 10:19:50 PM
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I'm pretty sure I'm using 2.3 as well - how do you check that?

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theGECK
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March 01, 2011, 10:54:12 PM
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I'm ranging between 285-295 Mhash/s.

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Beremat
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March 01, 2011, 11:27:11 PM
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You can check your Stream SDK version using GPU Caps Viewer.

Anyway, it turns out my problem was that CCC still thought I was running a 4850, so it set the core clock to 625Mhz. I reinstalled CCC, downgraded to Stream 2.2, and now I'm running between 300-340mhash/s.
wootwoot
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March 01, 2011, 11:57:09 PM
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New drivers installed, 555.4Mhash/s.  Shocked


Nobody has pulled those kinds of speeds off of a 5870. Can you post more details about your setup?
theGECK
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March 02, 2011, 12:08:13 AM
 #15

It has not gotten up that high since the first minute or so, so it was probably a bug in the GUI for poclbm. Or something I can't figure out.

I have a cheap MSI motherboard so I don't think it's my setup. Undecided

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BitLex
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March 02, 2011, 12:20:12 AM
 #16

I'm ranging between 285-295 Mhash/s.
you should downgrade to SDK 2.2*, to get 300-340Mhps like Beremat,
even my 5850 gets 310+Mhps (910MHz clock), SDK 2.3 slowed it down a bunch.


*if running DiabloMiner 2.1 is even better/faster, i couldn't get poclbm to run on 2.1 though.

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March 02, 2011, 11:06:35 AM
 #17

you should downgrade to SDK 2.2*, to get 300-340Mhps like Beremat
I'm getting 323MH/s on my 5870 with SDK 2.1, without messing with the clocking or voltage.
os008
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March 02, 2011, 11:47:07 AM
 #18

even my 5850 gets 310+Mhps (910MHz clock), SDK 2.3 slowed it down a bunch.
I've tried the 2.2 SDK as you advised, it gave me the same 300MH/s on my 5850 (900 core); back to 2.3 SDK. Thanks for the hint anyway Smiley.

2x5850 @ 600[M|K]H/s
theGECK
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March 02, 2011, 03:15:52 PM
 #19

Having trouble finding out how to downgrade from 2.3 to 2.2. I remember somebody saying that they had issues getting it to work correctly, but I can't find the posts where that was talked about and solved. Does anybody remember what I'm talking about, and can point me in the right direction?

Also, having trouble finding the location to download a package with 2.2 and not 2.3.

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os008
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March 02, 2011, 03:46:58 PM
 #20

having trouble finding the location to download a package with 2.2.
http://developer.amd.com/gpu/AMDAPPSDK/downloads/pages/AMDAPPSDKDownloadArchive.aspx

There you go, if you notice any difference please post how much is it.

2x5850 @ 600[M|K]H/s
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