damric

None.

Seems fine to me on my 56K dial-up

I'm sure you'll make the right decision

BUMP because this is awesome

What's sad is I probably have enough old fans in storage bin to build that myself. I hate throwing away things that function ><

I'm investigating. It's possible that I had a miscommunication with @axipher Let's see what he says. Worst case scenario is that the server didn't start tracking and we have to push the event start back to tonight.

I don't care who you were over there I'm just glad you made it here Now please join our monthly foldathon which starts tomorrow night, and since you are an overclocker I expect you also to join our HWBOT team!!! The discord invite is on the front page!

This card allows only very minimal tuning and follows a rather strict power envelope curve. But that said, I was able to somewhat tune clocks and power limits using overdriventool, and I was able to apply offset voltages using an old version of Sapphire Trixx. I tuned a folding@home profile for efficiency, and at 100W I am still pulling over 800K on project 18717. So 80% of the performance at half the power is good to me. I might be able to drop a few more millivolts, but that's going to need some long term testing. I stuck a fan on the backside of the card over the VRM and socket area, so that might help some when I tune for HWBOT next week.

Getting some good PPD after a bit of tuning:

Yes thank you. It does look way better than those ugly Quadros. My next project is a reference HD 6850 for the HWBOT cheap chips comp next month. I'll begin testing that one this week, but it arrived pretty dirty so I'll need to clean it up and repaste.

What fun is that?

Stock clock max boost is 1500MHz. When folding or doing anything serious it hits power limit and is more like 1200-1300MHz. I can exceed power limits as high as I want with registry tweaks but then the card just eats power and runs hot as hell to boost higher. Yeah I had a Vega 64 running steady at 1800MHz but with extremely cold water like 15C and a 450W power draw It's got a high ASIC quality 94% so I'm going to experiment undervolting and see where that goes. I probably need to add active cooling to the back of the card too sice there's some bare VRMs there.

Well I discovered a nifty program called overdriventool, and it's allowing me to tweak clocks, power, and voltage, so it's all good now.

I spent all morning messing around with it. Since it has no Windows drivers, only Linux, and the one mini-display output is disabled by default, I had two options: 1) Flash it to WX9100. This allows Windows drivers and enables the mini-dp. But there's no clock tuning in the driver like there was for Vega 64 or 56. OR 2) Leave the firmware as MI25 and install a linux distro. Yeah I'm no good at that, and this would also mean no benchmarking, but at least it would fold at stock config. I went with option #1. So now it's folding away happily and says 660K PPD on project 18717, but that's at the default clock/power config which seems to be running around 1200-1250MHz. I know it can do more. I've got to figure out how to unlock clock adjustments. I think I might be able to flash the VEGA 64 FE (16GB) BIOS to it and be able to tune it, but I'll probably lose the mini-dp. Not a big deal since I have it installed with 5600G with integrated graphics, but I don't think that will allow me to run benchmarks on it. I'll have to play around and see. BTW the coolant temp is fine with just the weak 240mm aluminum radiator. 34C while folding. GPU temp 44C, hot spot 70C.

Excited to see this.

Filled the loop back up and letting the pump run overnight to check leaks and collect air bubbles. That's a small cut I had to make on the shroud for the tubes I like the look of the shroud, but if VRM thermals are bad then it's coming off and I'll strap a fan onto the base plate. It's only a 240mm cheap aluminum radiator. I imagine it will be fine, but we'll find out tomorrow when I run it hard. @neurotix wasn't joking when he said these used to be extremely expensive. I just looked it up and the MSRP was over $16,000. What was Raja thinking? I got it for $60!

Great photos

I switched Michele to an M4000. Thanks to @Cerberus for showing me the appropriate flags, now her M4000 and my M4000 are on the same machine. This frees up a bench I will need to test out the MI25 Instinct.

Wow looks like you guys were busy working hard. White board checked off? I'd like to know the results of those volt mods

In theory it will be the same as Vega 64, so 1-2 million per day +/- how good the WUs are.

There's a couple guys selling a whole bunch of these old server cards on ebay. They are listed as buy-it-now for like $70-80, but one guy took my offer of $60 shipped. Not too bad since I sold an actual Vega 64 for $200 a couple months back. These server cards only have Linux drivers, but can be used with Windows if you flash it to WX9100, which also gives you output on the mini-display port. Thanks to a few guys at techpowerup for this idea. These cards have no fans, meant for high rpm server chassis fans to blow through. I saw some 3D printed adapters, but I happen to have a cheap universal water block I'm mounting. Going to need a little bit of metal cutting to get it to fit! Had to cut out that tab on the base plate. Also that heat pipe was just laying there, not soldered or anything so I coated the backside with MX-4. Cheap ebay GPU block fit the Vega die exactly. Looks like the tubes will have enough room. I wanted to keep the base plate because it keeps the VRMs cooled. I reused the stock thermal pads since they were in good condition. Base plate also connects the back plate. Looks good enough like this but I wonder if the shroud cover will also fit back on? Yes just had to trim the aluminum. I need to sand down the edges and put some black polish on there. So this is how it will look. Going to get it running this week on one of my folding benches.

About to try some very ghetto water cooling on it