Folding Forum

Hi everyone, Sorry for the delay. I had to do more testing than planned due to the new core a8 work units messing things up (had to wait for a7 work units to be comparable to previous plots). I also got side-tracked by my main writing gig (sci-fi novels), but I wasn't going to leave you all hanging....

Not sure if anyone else had this problem, but I tried using the new version 7.6.20 Client and Control in Ubuntu and the UI seemed broken. I could add a GPU slot, but there were no options at all to specify the GPU index or Open CL indices. Thus on my AMD Socket FM1 build, it kept trying to fold on t...

What I ended up doing is high-end CPU folding + low power GPU folding in the summer here in CT (Ryzen 9 3950x CPU, Nvidia GTX 1650 GPU), which doesn't fight the air conditioning too bad and isn't enough to give me an electric bill (have 26 solar panels on the roof). In the winter, I switch to GPU fo...

Excellent question! On the one hand, by using this hardware, you are producing useful science while giving the old parts a longer life (keeping them out of a landfill, potentially). On the other hand, if the goal is to do as much science as possible for the least amount of power (environmental impac...

If you actually measure lower watts drawn by the CPU with a meter, then I'm inclined to believe the clocks reported by Ryzen Master over the Linux kernel; but to confirm that it's correct we should measure it running under Linux to see if the CPU actually behaves differently, or if it's just a diff...

Something doesn't make sense there. With CPB and PBO off, I still get downclocking on my non-utilized cores. When the machine is idle, a lot of the cores say "sleep" in ryzen master. Even when I'm crunching away, if it's not using all the threads, the unused cores throttle down. https://gr...

On my system, the CPU still downclocks and even sets cores to idle with cpb and pbo off, although this is hard to see in Windows because task manager just reports the frequency of the most active core. Use AMD's Ryzen Master to confirm things still downclock.

It isn't necessary to add extra thermal paste on top of the paste that is already there. Thermal paste is a form of thermal interface material (TIM). Its only purpose is to fill in the tiny pits and valleys in the machined surfaces of the heatsink on the CPU and the cooler. Its thermal conductivity ...

Also, You mentioned PBO was disabled, right? By any chance, did you record the CPU frequency (not from Taskmanager, but from a program like CPU-Z or something), when enabling SMT? I know with PBO, when there's between 50-75% load on the CPU, it cuts down on the CPU frequency, to preserve power. Jus...

However, with PBO enabled, on a motherboard that can boost the CPU to at least 3,8Ghz on all cores (150W, or 8pin CPU plug), in theory it should boost the CPU to 4,1Ghz with SMT disabled, and PBO enabled. PBO - Performance Boost Overdrive = Increasing the power limits to the CPU socket to higher th...

Ok, Part 3 of the review is up. This contains the plots of SMT (Hyperthreading) on vs. off for the Ryzen 9 3950x. https://greenfoldingathome.com/2020/08/03/amd-ryzen-9-3950x-foldinghome-review-part-3-smt-hyperthreading/ The big takeaway here is that SMT's virtual cores (Hyperthreading) really helps ...

Sounds like a plan. I've already started running with the bios-controlled boost on. I'm just going to do it all over again and make two more curves (SMT on and off with boost enabled). Right now, with SMT on, running the 1st of 32 settings (CPU threads = 1), I am seeing around 12,500 PPD vs. the 880...

Do we have some initial PPD values already? Interested to see how much the QRB affects these cpus. Sorry all, I've been busy with the day job and then had a vacation thrown in the mix. But yes, I have results! Still working on the TPF stuff, but here is part 1 (from before) and part 2 (new) of the ...

I've been running various configs of dual, triple, and quad air cooled GPUs in mid tower cases. The key for me was using blower style cards that exhaust 100 percent of the air outside the case, and adding cool air intake fans to the side panel to feed the cards directly. I applied this to an old fer...

I'll add that once the benchmark unit finishes (I let one finish to see what happens even though the work unit was previously completed before I copied the guts of the folder), the client pulls down a new work unit and solves with the intended thread count