6750s cannot get above 100.

[Lacan82]

I have a 6750 it suppose to get around 160 or so or higher if overclocked, but I can't seem get beyond 100. I've tried guiminer and cgminer, both with the same results. Installed the latest drivers.


Any suggestions?

[os2sam]

What settings have you tried with CGMiner?

What Catalyst version?

What OpenCL SDK?

[Lacan82]

What settings have you tried with CGMiner?

What Catalyst version?

What OpenCL SDK?e  

Maybe that is what I'm missing is OpenCL SDK

let me give that a try

I'm using 2.8 based off a article I found here.

using 4096 thread, 128 worksize, v 1

[os2sam]

What settings have you tried with CGMiner?

What Catalyst version?

What OpenCL SDK?e 

Maybe that is what I'm missing is OpenCL SDK

let me give that a try

I'm using 2.8 based off a article I found here.

You aren't missing OpenCL as you can't mine without it.

I believe Catalyst 2.8 comes with OpenCL 2.6 which is required for 7xxx series cars but is terrible for 5xxx/6xxx cards.  So if you can I would downgrade OpenCL to 2.5 which is what I'm using with my 5xxx series cards.  But I understand that downgrading OpenCL is very difficult to do.

This is covered in the CGMiner FAQ section.

Good Luck,
Sam

[Lacan82]

still the same issue...maybe I'll try switching to linux when I have more time

[Bitsaurus]

It's not enough to just uninstall the old drivers.  You need to do a clean wipe or even reinstall of windows if you're not sure how to get the 2.5 SDK in there.

[grue]

It's not enough to just uninstall the old drivers.  You need to do a clean wipe or even reinstall of windows if you're not sure how to get the 2.5 SDK in there.

using catalyst install manager to uninstall all drivers works fine for me.