Folding Forum

I appear to have a MSI Radeon HD 6850 1GB Hawk (R6870 HAWK) in my son-in-law's old gaming box. Googling suggests that this is a factory overclocked 6850 (itself an overclocked 5800??) .FAH recognises it as a Cypress Pro 5800/6850 and will try to fold with it. It gets about 2-3% in and then gives a "is your system overclocked" message followed by a "nan" failure. Sorry about not posting a log, but getting one off that box is a pain.

Main question is, is this GPU going to be so slow anyway that it's not worth the effort of underclocking etc to get it working reliably? Box is happily folding CPU projects on 3 cores, and if so I'm happy leaving it doing that.

https://www.techpowerup.com/gpu-specs/r ... -6850.c255

This card lacks Double Precision floating point math, and should not be eligible to fold in the GPUs.txt database.

It never will fold correctly.

Thanks for that. Seems that the ID as Cypress Pro is wrong, and that the 6850 based GPU series are Barts Pro, which apparently didn't support FP64.

What GPUZ says about your HD 6850 (GPU codename and Device ID) ?

I'm seeing weird things in identifications :
0x6899 / Cypress PRO [Radeon HD 5850]
0x689b / Cypress PRO [Radeon HD 6800 Series]
Both should support DP.
0x6739 / Barts PRO [Radeon HD 6850] which doesn't support DP.

Many apologies. I mis id'd the card. It's actually a MSI Radeon HD 5850 1GB Twin Frozr II (R5850 TWIN FROZR II) Graphics Card which is indeed a Cypress Pro card. Sorry for taking up resources the misinformation.. With the FAH log telling me it was 5800/6850 I googled both codes and only found one twin fan card. I've take the box apart and got the numbers off the card this time.

Back to the original question then. Is this going to be so slow that it's not worth trying to sort it's problems?

https://www.techpowerup.com/gpu-specs/r ... -5850.c252

It was a great card 11 years ago, and still should fold, and meet deadlines. It has OpenCL 1.2 and Double Precision floating point math.