People are paying $480???   Or were these sold when bitcoins were at $5.25?  I'd consider $400.

I wish I had picked up that used one that sold for $325 on eBay.... =/

they were selling new 2GB 6950's at microcenter for $199 just a week ago (granted, a lesser brand), but you can regularly find deals on them for $215 or less...  for new, unused cards

i didn't check the other prices after seeing that first one, so...  maybe they are fine, who knows

I have three 5830's  @ 955 core, 395 memory that have been running for 48hrs straight (*ed: only 48hrs since i'm still gradually increasing the overclocks.  they crashed @ 1000core after a few hrs.  so, i dropped it to 925 and have been working up since then).   max temp is 68o, ambient temp is, well, whatever it is in the garage at the moment, the fan is set on manual.... 68o should result in around 55% fan speed, I guess..  it was 75o outside the day before yesterday, which is when it hit that 68o (inside the garage the ambient was probably  ~80-85).  

i also use a small floor fan that blows into the case..

2.1 is the best to use, purely from a bitcoin mining perspective.  The CPU bug is also fixed in 2.6

use phoenix and set aggression to 2

i use phoenix rising v1.3 =p

is there a problem with running it on win7 64 bit?  *boggle*

yeah, you really shouldn't have card >80oC for extended periods of time

Just open the case,  buy some honeywell fan for $15 off newegg, and it shouldnt go above 70oC unless your ambient temp is over 90oF or so (even with GPU fans at 50%)

use MSI Afterburner to set card to 950/385

use DOS command prompt

install the 12-21-11  of diapolo in phatk directory (http://www.mediafire.com/?r3n2m5s2y2b32d9), not the one from january

then in the directory where phoenix is located

phoenix -u http://xxx.xxx:xxx@x.x.x:xxxx/ -k phatk device=0 AGGRESSION=9 FASTLOOP=false VECTORS4 WORKSIZE=64

('phatk' being the subdirectory in 'kernels' where diapolo was installed to)

also, the 250 you mention on main computer is slow even.  5830 should be able to get 300 w/o problems

Hasn't been my experience, nor any of the other half a dozen people I know that run 5830 setups.  The decision is more along the lines of 'do I want to run the card cooler with a lower memory setting', vs 'do I want to run at 395mhz memory, but gain a few mhash?'.

I speak of 5830's exclusively.

i still use phoenix rising  v1.3, hoho

Underclock to 300-370mhz has never been best.  395 is faster.  Fastest?  Not sure. 

5830, SDK 2.6 (10.0.851.6)

Diapolo from December 12th, 2011

1060 core, 385 memory (phoenix 1.7.2)

phoenix -k phatk device=1 AGGRESSION=11 fastloop=false VECTORS4 WORKSIZE=64 -a 1000

332.96

395 raises it another point or so.  Never tried 399.

Not going to run my card at 1060 core and 1000 memory setting.  I imagine the ~2% gain you have listed here is more than offset by energy costs associated w/ cooling (and wear and tear on the card, theoretically resulting in faster depreciation of the value of the equipment)

I usually run it at 1000/385.

(ed: for comparison, back in June or so when I put my score on the 'Mining Hardware comparison' wiki page, I got 334, with 1030 core and 385 memory...   but it's worth it for a multi-card setup, anyway...  don't have that core getting smashed 100% anymore)

(ed2:  same thing at 399 memory setting - [335.09 Mhash/sec] [18 Accepted] [0 Rejected] [RPC (+LP)])

Well, this is my 5th post.  Besides that, Date Registered:   June 08, 2011, 09:20:04 AM... and I started mining on bitcoinpool in May.

just thought I'd add that I have card one at 6 aggression, card 2 at 9 aggression.. for a while now.

card 1 has 4630 shares, card 2 has 3880 shares

oh, and 395 is the best memory setting, not 366

I pay .095c, but there are cheaper options available  (I believe the lowest is ~.075c), although I  suspect they're less reliable (subject to brownouts etc)...  

But if I had a large setup using tons of electricity, there'd be those discounts for high use...  like over 5000kwh would be 8c with my current provider.

ed: (northeast texas, and "Bounce Energy" is 6.9c)    http://www.electricitybid.com/counties/henderson.php

re: AMD Stream SDK 2.6 (Catalyst 11.12/12.1) - Get your performance back! (Phoenix) in the Bitcoin Forum > Bitcoin > Mining > Mining software (miners) section..

On my 5830, I've been able to get the following results with 1030 core, 395 memory setting (ed: oh, this is with 12.1 installed):

C:\Bitcoin\PhoenixMiner3>phoenix -u hxxp://xxx:xxx@xxx:xxx/ -k phatk device=0 AGGRESSION=6 fastloop=false VECTORS4 WORKSIZE=64
[07/01/2012 05:53:23] Phoenix v1.7.2 starting...
[07/01/2012 05:53:23] Connected to server
[07/01/2012 05:53:26] Result: 30498c22 accepted
[07/01/2012 05:53:28] Result: 8a32ebba accepted
[07/01/2012 05:53:33] Result: 0f23d202 accepted
[07/01/2012 05:54:03] Result: 43cb913a accepted
[07/01/2012 05:54:03] Result: b396e606 accepted
[07/01/2012 05:54:26] Result: f454a5e5 accepted
[07/01/2012 05:54:37] Result: 85485c84 accepted
[07/01/2012 05:54:57] Result: 4d36d8d2 accepted
[07/01/2012 05:55:09] Result: 2375c7e7 accepted
[07/01/2012 05:55:39] Result: 2e624f87 accepted
[07/01/2012 05:55:46] Result: 304d0ac8 accepted
[07/01/2012 05:55:51] Result: 74cc1d7d accepted
[07/01/2012 05:55:56] Result: 771726f0 accepted
[07/01/2012 05:55:59] Result: 929b110c accepted
[07/01/2012 05:56:16] Result: 4c9837c2 accepted
[07/01/2012 05:56:40] Result: 7cf4b050 accepted
[07/01/2012 05:56:54] Result: 5392f8e9 accepted
[07/01/2012 05:56:58] Result: 30ef980e accepted
[07/01/2012 05:57:01] Result: bc91d2e3 accepted
[07/01/2012 05:57:07] LP: New work pushed
[07/01/2012 05:57:28] Result: d5c12c1f accepted
[07/01/2012 05:57:29] Result: e8c9e562 accepted
[07/01/2012 05:57:44] Result: 65359092 accepted
[07/01/2012 05:57:48] Result: 6074961e accepted
[07/01/2012 05:57:55] Result: 2cfb5520 accepted
[07/01/2012 05:58:09] Result: 15d50178 accepted
[07/01/2012 05:58:16] Result: 48f30dcd accepted
[07/01/2012 05:58:30] Result: 9ffb22b0 accepted
[07/01/2012 05:58:36] Result: c0ae45be accepted
[07/01/2012 05:58:46] Result: 141e18b2 accepted
[07/01/2012 05:58:49] Result: c8b7e357 accepted
[07/01/2012 05:58:55] Result: ebde70bb accepted
[07/01/2012 05:59:26] Result: 4a2921e0 accepted
[07/01/2012 05:59:34] Result: 94444d85 accepted
[07/01/2012 05:59:43] Result: a9442643 accepted
[07/01/2012 05:59:51] Result: 5d61847a accepted
[07/01/2012 05:59:51] Result: a0f27b00 accepted
[07/01/2012 05:59:58] Result: 8875e97e accepted
[07/01/2012 06:00:07] Result: 14cf3802 accepted
[07/01/2012 06:00:15] Result: aa795e52 accepted
[356.51 Mhash/sec] [39 Accepted] [0 Rejected] [RPC (+LP)]

Maybe just a display error?  It bounces between 356 and 335'ish... with the -a 1000 flag, it gets ~345mhash.  This is with the diapolo 2011-12-21 kernel.  

I have an old result on https://en.bitcoin.it/wiki/Mining_hardware_comparison

5830   334   -      -   1030   -   2.4   PCI-E 2.1 x16   phoenix 1.50 / phatk 2.0 / Win7 64   Stock voltage, 385Mhz Memory, VECTORS AGGRESSION=12 WORKSIZE=256 BFI_INT -- (upped from 330 achieved with diapolo mod here), now using phatk 2.0 found here

the 'here's being links.  I achieve the best results using aggression 6 or 7, if one is to believe what phoenix is telling me. Odd.

I have a similar issue w/ two cards, but not so bad.  I have to have my sound card squeezed between my two 5830's so the top card has little airflow.   I just open the case up and put a small floor fan angled to blow air out the back... works wonders.  Probably doesn't even cost a whole lot more in electricity either, since you can lower the fan speed on your cards quite a bit.    Like when my cards were running 63o/72o, that floor fan dropped them to 60o/64o within a minute.  Just like some $15 fan or something that doesn't draw a huge amt of power.

The highest I've ever gotten on my 5830 was ~330 (1050 core).  That only lasted about a few minutes before it froze though, haha.  It'll run "stable" at 1030 core as long as I do absolutely nothing else with my computer, at about 318-319.