7850 numbers can't seem to get over...

[Kennji]

310 mhash range.  No matter what setting I do.  I cannot seem to get the card over 310-315mhash range on a steady basis without crashing the rig.

Anyone else able to get better numbers?

What are you using?

I use CGMiner.

[Mushai]

What overclocking settings are you using?
What OS are you using?
What custom switches are you using?

[Kennji]

Win7 64 bit

Not overclocking at all.

-i 7 --auto-gpu --gpu-engine 1100 --gpu-memclock 1350

I have played with a lot of different settings.  I just cannot seem to get it over 310 range.

[Mushai]

Well, i'm no expert, only have 5800 and 5900 series cards, but gpu-memclock seems high.

Does the 7850 need such high gpu-memclock?

Seems that people clock the memory to 800/900 for that card.
https://en.bitcoin.it/wiki/Mining_hardware_comparison#Popular_Mining_Cards (scroll or search page for 7850)

maybe give that a go.

With mine it was a case of trial and error untill I found  GPU memory and voltage settings that were stable.

[dolezelk]

getting 610 khas/s with this on Saphhire 7950:
--scrypt -I 20 -w 256 --lookup-gap 2 --thread-concurrency 24000 -g 1  --gpu-engine 1100 --gpu-memclock 1500

[moodminer]

Put the gpu at about 1100 and the memory at 900 there is an example that is pulling 330MHash/s at http://www.brandonorndorff.com/bitcoin/mining/radeon-hd7850-7870-cgminer-config-settings-bitcoin/

[rsmereka]

Seems a tad low (but not that much).

According to https://en.bitcoin.it/wiki/Mining_hardware_comparison common range is 300-375 so you are in range.

Rick

[Tadex]

I have de same card and also get the same range... Under os x