End of ETH mining, start of new leaf in DC? (One 5900X rig built!)

VirtualLarry

No Lifer
Aug 25, 2001
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I'm keeping that other 5900X. I've got two Gigabyte B550 Aorus-P mATX boards (2.5GbE LAN), two or three sets of DDR4-3200 4x16GB (64GB) RAM, some Team Group Cardea Gen4 512GB NVMe drives, along with some EVGA SuperNova G+ 80Plus Gold 850W PSUs, and a pair of Rosewill 4-fan RGB Mesh cases, and some DeepCool AK400 220W TDP tower coolers too.

My hope is to re-gain the stability that I've lost (my current 5900X crashes and reboots after 3 min of mining or primegrid, think my CLC AIO is shot, although the RPMs still show, but it doesn't make noise any more. Going with AIR this time.)

And then, once I have some stable 5900X rigs with 64GB of RAM, I plan on digging in to some PrimeGrid and WCG, that I've neglected for so long.

And, depending on how things go with ETH PoS in Sept., I may be able to turn my GPUs back to DC, finally, after a long hiatus into the "dark side" - mining.
 
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burninatortech4

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Jan 29, 2014
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I do a lot of DC with my 5800X (but still mostly gaming). The extra cores would obviously benefit DC but would I see a regression in games or would it be a side-grade in that sense?
 

VirtualLarry

No Lifer
Aug 25, 2001
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As far as cache-to-core ratios go, the 5900X has double the L3 cache (64MB, in two slices), but only 50% more cores, so it should have a higher cache-to-core ratio. (Than the 5950X too.)

The 5800X3D has even more cache, but still only 8 cores, and I think, because you can't OC the 5800X3D, you can't undervolt it effectively either.

For gaming I'm kind of assuming that it would be mostly a side-grade.
 
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FlawleZ

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Oct 13, 2016
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As far as cache-to-core ratios go, the 5900X has double the L3 cache (64MB, in two slices), but only 50% more cores, so it should have a higher cache-to-core ratio. (Than the 5950X too.)

The 5800X3D has even more cache, but still only 8 cores, and I think, because you can't OC the 5800X3D, you can't undervolt it effectively either.

For gaming I'm kind of assuming that it would be mostly a side-grade.
There are a number of people overclocking the 5800X3D.
GLWS
 

Skillz

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Feb 14, 2014
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Nobody wants this for $350 shipped Priority to CONUS? Paypal please.

What if I made it a package deal with a used 1660ti Gaming X, in decent condition? And will throw in a mobo for free if I have one avail BNIB. Say $450 (total for all three items, BNIB 5900X, used 1660ti Gaming X, and asst. BNIB AM4 mobo)?
If it wasn't for the fact that I already have hardware at home that I haven't even had a chance to put together yet. I need to get this stuff together first before I go buying more. Otherwise, I'd be all over this.
$450 for a 5800X, 1660Ti and a AMD motherboard? You bet I'd be all over this!
 
Feb 4, 2009
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F, I wish I had some extra cash hanging around.
Love to meet up with you Larry, love to have that CPU
HOWEVER, I need tires a battery and possibly a muffler for inspection time in August.
 
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crashtech

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Jan 4, 2013
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I'm so tempted by this. On one hand I could be able to test yet another configuration of Zen3 for upcoming challenges, on the other, I already have many different types to manage. It's not the price that keeps me from this, it's the testing overhead.
 

VirtualLarry

No Lifer
Aug 25, 2001
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Well, one is built. Using the BNIB 5900X, and 64GB (4x16GB) of Gskill DDR4.

Making the Win10 installer as we speak.

It POSTed right up. (Joy!)

Haven't tried setting XMP or updating BIOS yet.

Mobo is Aorus Pro-P B550 mATX. (two GPU slots)

Edit: One problem that I ran into already, was that the chassis has a back-side dual 3.5" HDD mounting bracket, and the EVGA G+ PSU is actually longer than your run-of-the-mill ATX supply. So I had to remove the HDD cage to get the PSU to fit.

Also, fitting the 12V EPS cable after the mobo was installed, required a bit of super-human dexterity. It must have taken me 15 minutes to plug in properly, both halves.

But it's installed, and burn-in testing with PrimeGrid as we speak.

CCXs @ 80C

Edit: Had a false start testing. I forgot to change the default Windows Power Plan, which puts the system to sleep after 30 minutes of keyboard inattention.

After setting that to "none", PrimeGrid could run all night.

It did NOT crash/reboot, but HWMonitor reported CCX #0 got to 89.8C, and CCX #1 got to 90C (in red).

I guess that's OK? I don't know if it was throttling.

I Have PrimeGrid / BOINC set to use 100% of CPU time, and 90% of CPU threads (on a 12C/24T CPU, not sure what that comes out to, but I think it leaves one thread and hyperthread free.)

Overall, I'm happy thus far.
 
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VirtualLarry

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Maybe someone would be so kind as to link me to the page on PrimeGrid of my recently-submitted work, so that I could check for any erroring WUs for this burn-in. (I'm sorry, I don't know / remember how to do that.)

Edit: I think that I found it. Nothing showing "Errored:" yet.
 
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crashtech

Lifer
Jan 4, 2013
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This is a DC rig? Why not Linux? There's plenty of help here to make it go, and there are numerous advantages for compute.
Also it's not hard to set up NBMiner into a Nicehash wallet if need be.
 

Shmee

Memory and Storage, Graphics Cards
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Sep 13, 2008
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ETC mining will still be an option as well, as well as various other DC projects for both CPU and GPU. I wonder if there are still any viable ways to mine with a CPU? I mean, there is ghostrider algo, and mining on Zergpool, which then lets you switch to payouts in other coins. But maybe nicehash is more worth it? Not sure.
 

VirtualLarry

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Aug 25, 2001
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No more mining on this rig, I don't want to make it a burned-out husk.

Oh, and I prefer Win10 to Linux.

I installed a 6500XT GPU.
 
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VirtualLarry

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I'm getting all-core clocks of 3750-3800, running PrimeGrid GFN-17. (Presumably with AVX.)

Does that mean that my AK400 cooler is weak? Claimed to be rated for 220W TDP.
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
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I'm getting all-core clocks of 3750-3800, running PrimeGrid GFN-17. (Presumably with AVX.)

Does that mean that my AK400 cooler is weak? Claimed to be rated for 220W TDP.
What are the core temps like? It could be thermal throttling, but I think it could also just have reached a current/power limit. This may also be affected by the motherboard used, and what settings are set in BIOS. My understanding is you can get much higher MT performance by tweaking the PBO settings and using the curve optimizer.
 

crashtech

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Jan 4, 2013
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No more mining on this rig, I don't want to make it a burned-out husk.

Oh, and I prefer Win10 to Linux.

I installed a 6500XT GPU.
I like the Windows GUI experience, but many DC projects perform much better on Linux. If you are going to stay with Windows, I'm slowly developing a tutorial on running Ubuntu inside Windows via WSL2, doing so can reap huge advantages in Universe@Home, for example.
 
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VirtualLarry

No Lifer
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NOT to toot my own horn, but I'm really impressed how well the 5900X chews through CPU tasks for PrimeGrid and WCG. You guys with those "sick" EPYC rigs are really on God-tier systems, I think. (Not that I could ever afford one of those, but I can dream. These 2x 5900X are the most expensive CPUs that I've ever purchased.)
 

crashtech

Lifer
Jan 4, 2013
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AMD sure re-wrote the book when they released Zen and AM4. What's maybe even more remarkable is getting 5900X level performance out of such an old socket. 5900X can run on a 4 year old motherboard, something unprecedented coming out of an Intel dominated world.
 

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