Good Speeds on Sapphire 5830's 311.4MHash/s

[Mousepotato]

Thanks I will try that when I get home!

[1715252316]

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[1715252316]

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[1715252316]

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[murfshake]

2x 5830 Sapphire with GUIMiner "-k phatk VECTORS AGGRESSION=12 FASTLOOP WORKSIZE=256 BFI_INT" getting ~290Mhash/s per card 930/300 with open case and a fan blowing on it, staying at 60c.

[trueimage]

2x 5830 Sapphire with GUIMiner "-k phatk VECTORS AGGRESSION=12 FASTLOOP WORKSIZE=256 BFI_INT" getting ~290Mhash/s per card 930/300 with open case and a fan blowing on it, staying at 60c.

quoted so I can find this later.

[trueimage]

Ok, I'll post the script in a minute.

in for script running a 5830 @ 325 Mhash/s @ 850 MHz

[aceman1011]

I was actually using the standard script for poclbm, -v -w 128. I don't think that that was correct because that's deepbit said 650, and when I checked it half an hour later it said 450. Probably just a bad measuring script.

[Mousepotato]

Ok I got things running with my 5830.  Results so far: 305MH/s @ 990/355, Phoenix 1.50, Catalyst 11.5, SDK 2.4. 

[Mousepotato]

I was actually using the standard script for poclbm, -v -w 128. I don't think that that was correct because that's deepbit said 650, and when I checked it half an hour later it said 450. Probably just a bad measuring script.

So you're going by the MH/s average that Deepbit displays?  No wonder you're getting 325

[styrfoem]

Both cards on 1 motherboard no volt mods stock (1.163).

Very tempted to try and see what 1.25V will allow me to overclock the card to, STABILY.

GA P55-USB3 no separation cables. I have Sustained these speeds for about 2 days now.

I ran the cards solid at 1000/300 for about 2weeks, with no issues. Couple days ago decided to try Phoenix miner. After some trial and error found out that POCLBM gives me about 5-8Mhash more then phatk.

I have the Mobo on a tabletop, no case with two 120MM Fans blowing on the cards, with the GPU Cooling Fans at 80%.

from my experience on the Sapphire cards, the voltage cannot be overclocked without manually modding the board... if anyone knows differently please enlighten me.

[Roland68]

Trixx software version 4.1 let us change voltage at 5830 ...

(that is what the software says ...=) i don't know if it really change it !

[gigica viteazu`]

Trixx software version 4.1 let us change voltage at 5830 ...

(that is what the software says ...=) i don't know if it really change it !

where did you find 4.1, because on the official page i can only see 4.0.1

[styrfoem]

see...
http://www.overclock.net/amd-ati/708571-sapphire-blue-pcb-5830-5850-5870-a.html
i realize this is an old original post, but you might find it helpful and informative like i have


let me know if anyone is successful with this mod

[Elanzer]

Just built a system with 4 of these cards with a sempron 140 yesterday, built in a HAF-X case with a 1000w 80PLUS Gold OCZ PSU.

Modified the voltage of each card to 1.0v voltage via using RBE to edit existing bios, the 4 cards are running 860/280 across the board (for now, still stability testing, stable for over 24 hours atleast). Fan speed set to 60% across the board.. room temp of 26'c, hottest card about 78'c, coolest card about 50'c. Power draw measured from wall: 480w.

Seems like I could have built this system with a 600w PSU after the undervolting. System total is about 1060mhash/sec (~265 per card using poclbm phatk), build cost was about $900 before tax as I got each card for $103, but if I knew the power draw was going to be this low I could have opted for a PSU that wasn't $150.

[Mabsark]

Will one of you guys who are running at 300 mem clock and worksize=256 give 225 mem clock and worksize=128 a try, and let me know your before and after results.

[smoki]

Will one of you guys who are running at 300 mem clock and worksize=256 give 225 mem clock and worksize=128 a try, and let me know your before and after results.

I don't have any 5830s, but all 58xx cards should behave similarly. On my 5870s I noticed that below ~250 mem clock worksize=128 works better. In fact, the optimal settings I've found we're at mem=186, worksize=128. That gives a few Mhash/s more than worksize=256 and mem anywhere between 250 and 400.

[Mabsark]

Will one of you guys who are running at 300 mem clock and worksize=256 give 225 mem clock and worksize=128 a try, and let me know your before and after results.

I don't have any 5830s, but all 58xx cards should behave similarly. On my 5870s I noticed that below ~250 mem clock worksize=128 works better. In fact, the optimal settings I've found we're at mem=186, worksize=128. That gives a few Mhash/s more than worksize=256 and mem anywhere between 250 and 400.

The conclusion I came to with the 6870 was that the sweetspot was between 180 and 240. I was thinking the 5800s should be similar. There seemed to be a nice spike between those values, then below 180 the hash rates fell off rapidly. Did you find a similar pattern?

[pennytrader]

Will one of you guys who are running at 300 mem clock and worksize=256 give 225 mem clock and worksize=128 a try, and let me know your before and after results.

I don't have any 5830s, but all 58xx cards should behave similarly. On my 5870s I noticed that below ~250 mem clock worksize=128 works better. In fact, the optimal settings I've found we're at mem=186, worksize=128. That gives a few Mhash/s more than worksize=256 and mem anywhere between 250 and 400.

The conclusion I came to with the 6870 was that the sweetspot was between 180 and 240. I was thinking the 5800s should be similar. There seemed to be a nice spike between those values, then below 180 the hash rates fell off rapidly. Did you find a similar pattern?

Only work for worksize=128.

My best setting (5830) is memclcok = 300 with default worksize (SDK 2.1 + poclbm), which gave me 6 mhs more. Of course, setting memclock to 200 will lower the electr bill.

[SomeoneWeird]

Running my Sapphire 5830, 317.2mh/s 1025/300.

[gigica viteazu`]

i`m doing 301.xx Mh/s with my Sapphire 5830 set at 970/300 stable 24/7

[Roland68]

2x 5830 Sapphire with GUIMiner "-k phatk VECTORS AGGRESSION=12 FASTLOOP WORKSIZE=256 BFI_INT" getting ~290Mhash/s per card 930/300 with open case and a fan blowing on it, staying at 60c.

quoted so I can find this later.

Trixx software version 4.1 let us change voltage at 5830 ...

(that is what the software says ...=) i don't know if it really change it !

where did you find 4.1, because on the official page i can only see 4.0.1

you right!

sorry was 4.0.1 official on saphire web page ....

[SomeoneWeird]

2x 5830 Sapphire with GUIMiner "-k phatk VECTORS AGGRESSION=12 FASTLOOP WORKSIZE=256 BFI_INT" getting ~290Mhash/s per card 930/300 with open case and a fan blowing on it, staying at 60c.

quoted so I can find this later.

Trixx software version 4.1 let us change voltage at 5830 ...

(that is what the software says ...=) i don't know if it really change it !

where did you find 4.1, because on the official page i can only see 4.0.1

you right!

sorry was 4.0.1 official on saphire web page ....
[/quoge]

Yep, 4.0.1 lets me change the voltage aswell, although if i go over 1030 and try to mine, gpu cracks a shit.