Doubled my memory bandwidth

[Fast_N_Curious]

At a slight latency penalty, but that's to be expected when you are addressing eight channels of memory.

 

I chose 4GB modules across all 16 slots for a total of 64GB registered SDRAM running at 1866MHz. 

 

I searched high and low, but it's very difficult to find ECC/ registered memory at this speed with tighter timings. 

 

Before:

 

After:

 

 

 

[rcmaehl]

What AIOs are those?

[jaslion]

4 minutes ago, rcmaehl said:

What AIOs are those?

Those are hp z820 proprietary cpu coolers. Kinda odd design as well more points of failure but so be it. Especially when the smaller brother with just regular heatsinks ran fine even when I added dual 12 core's in it.

[Paroxy]

That's pretty sweet! What are you using this beast for?

[Fast_N_Curious]

1 hour ago, jaslion said:

Those are hp z820 proprietary cpu coolers. Kinda odd design as well more points of failure but so be it. Especially when the smaller brother with just regular heatsinks ran fine even when I added dual 12 core's in it.

I didn't think it would make a difference going from the standard HP heat piped air coolers to the OEM HP liquid cooling solution but I kid you not my 12 core E5-2696 v2 chips now spend a good bit more time up in higher clocked turbo territory than they did before, when under air cooling. Which seems odd, because H2O cooling only dropped my CPU temps by 8-10* Although under load they remain substantially cooler. In fact I have never seen above 168*F with any torture test I've put it through so far. Sorry, I don't know the Celsius conversion off hand. To give you an idea of how robust this cooling system is, I can make it through about 75% of Cinebench R15 extreme before the cooling fans even start to throttle up. 

 

1 hour ago, Paroxy said:

That's pretty sweet! What are you using this beast for?

 

This is going to be virtual machine server and point of access for my home network when working remotely. 

 

I have a second z820 system currently waiting on eight core CPUs (4.0GHz turbo) and that one will be just for fun / gaming and will be my primary PC at the house. 

 

 

[jaslion]

13 minutes ago, Storm-Chaser said:

I didn't think it would make a difference going from the standard HP heat piped air coolers to the OEM HP liquid cooling solution but I kid you not my 12 core E5-2696 v2 chips now spend a good bit more time up in higher clocked turbo territory than they did before, when under air cooling. Which seems odd, because H2O cooling only dropped my CPU temps by 8-10* Although under load they remain substantially cooler. In fact I have never seen above 168*F with any torture test I've put it through so far. Sorry, I don't know the Celsius conversion off hand. To give you an idea of how robust this cooling system is, I can make it through about 75% of Cinebench R15 extreme before the cooling fans even start to throttle up. 

 

 

This is going to be virtual machine server and point of access for my home network when working remotely. 

 

I have a second z820 system currently waiting on eight core CPUs (4.0GHz turbo) and that one will be just for fun / gaming and will be my primary PC at the house. 

 

 

I had the z620 dual cpu version up until recently till I sold it and used the money to get a ryzen system as it made more sense to me. I also had dual e5 2697 v2's and they never went over 66c (about 151f) and always ran at their max turbo of 3ghz when rendering projects. Really good system for the 4,5 years I had it. Bit annoying with the pcie power connectors but glad they were non standard and you could just branch one into 2 8pins due to em being way higher power than normal spec :p.

[Fast_N_Curious]

47 minutes ago, jaslion said:

I had the z620 dual cpu version up until recently till I sold it and used the money to get a ryzen system as it made more sense to me. I also had dual e5 2697 v2's and they never went over 66c (about 151f) and always ran at their max turbo of 3ghz when rendering projects. Really good system for the 4,5 years I had it. Bit annoying with the pcie power connectors but glad they were non standard and you could just branch one into 2 8pins due to em being way higher power than normal spec :p.

 

I am toying with the notion of building a 3950X 16 core system simply because of it's outstanding value and meaningful boost clocks. Even though I have 24 physical cores here, individually, as I am sure you are aware, they are nowhere near the theoretical performance that you'd get from a 3950X. I have been playing COD Modern Warfare (2019) over the last couple of days on this Z820 to test the waters and test relative gaming performance (with a RX 5700 tx GPU), and with the graphics detail set to maximum I see on average anywhere from 30-50% CPU usage. Fraps does not appear to be working with this game, however, average FPS seem to be decent and the game is very playable. 

 

 

One thing I am keeping my eyes open for is a quad CPU server. Not to be mistaken with a quad core CPU. If two is good four is better!  

 

I've seen a few Dell PowerEdge R910 on amazon with four CPUs installed. So I might pull the trigger on one of these:

 

https://www.amazon.com/PowerEdge-Server-E7-4850-Cores-Renewed/dp/B07Q9FZLWK/ref=sr_1_1?dchild=1&keywords=Dell+Poweredge+R910&qid=1586549905&sr=8-1

 

 

 

 

[jaslion]

3 minutes ago, Storm-Chaser said:

 

I am toying with the notion of building a 3950X 16 core system simply because of it's outstanding value and meaningful boost clocks. Even though I have 24 physical cores here, individually, as I am sure you are aware, they are nowhere near the theoretical performance that you'd get from a 3950X. I have been playing COD Modern Warfare (2019) over the last couple of days on this Z820 to test the waters and test relative gaming performance (with a RX 5700 tx GPU), and with the graphics detail set to maximum I see on average anywhere from 30-50% CPU usage.

 

 

 

One thing I am keeping my eyes open for is a quad CPU server. Not to be mistaken with a quad core CPU. 

 

I've seen a few Dell PowerEdge R910 on amazon with four CPUs installed. 

 

 

 

 

The main issue with multi cpu systems is well. Multiple cpu's. A lot of applications (games included) just can't use more than one cpu as they aren't programmed to understand more than 1. Professional applications and things like blender do see em but a 3950x would just smoke this entire system. It's why I sold mine as a simple ryzen 2700 was 85% the performance of what I had whilst working in all my programs fully instead of only in a select few.

[Fast_N_Curious]

I just ran the entire AIDA64 benchmark report.

 

This rig appears to have benefited slightly in just about every result, especially with PhotoWorxx

Where my score more than doubled from 22149 to 51785 MPixel/s. Obviously the benchmark is highly RAM dependent. 

 

[Fast_N_Curious]

On 4/10/2020 at 1:55 PM, jaslion said:

Those are hp z820 proprietary cpu coolers. Kinda odd design as well more points of failure but so be it. Especially when the smaller brother with just regular heatsinks ran fine even when I added dual 12 core's in it.

What part of the liquid cooling system is susceptible to failure? As far as I can tell, these liquid coolers actually allow for a measure of redundancy in the event of a CPU fan failure. 

 

Not very probable, but you could actually lose both 80mm CPU cooling fans at the same time and the z820 cooling system would still be able to take the hit. Matter of fact, I even ran some benchmarks with both 80 mm CPU cooling fans turned off, namely, Cinebench 15 and R20. Temps stayed within limits and there was no thermal throttling. Obviously, you don't want to run it long term like this, but nevertheless, it can be done. 

 

The reason this works is due to the fact that the z820's cooling system has "channels" or "pathways" that run from the front of the case, to the back, effectively creating a "river" for airflow around both CPUs before being expelled by the two 80mm fans (see pics) at the back. These two small fans in the back offer enough flow through the radiators to keep thermals within nominal limits. 

 

When you look at the design and engineering that went into building something like this, something this good, and tool-less nonetheless, it's really quite amazing to behold. What HP gave us here is far above ordinary, its "exceptional". Matter of fact, I will make the statement that the z820's cooling system is one of the most robust OEM cooling systems ever implemented for use in a workstation system. 

 

From above, sits flush with the top of the case

 

 

 

(note active cooling on the RAM as well) 

(upside down):

 

 

[jaslion]

55 minutes ago, Storm-Chaser said:

What part of the liquid cooling system is susceptible to failure? As far as I can tell, these liquid coolers actually allow for a measure of redundancy in the event of a CPU fan failure. 

 

Not very probable, but you could actually lose both 80mm CPU cooling fans at the same time and the z820 cooling system would still be able to take the hit. Matter of fact, I even ran some benchmarks with both 80 mm CPU cooling fans turned off, namely, Cinebench 15 and R20. Temps stayed within limits and there was no thermal throttling. Obviously, you don't want to run it long term like this, but nevertheless, it can be done. 

 

The reason this works is due to the fact that the z820's cooling system has "channels" or "pathways" that run from the front of the case, to the back, effectively creating a "river" for airflow around both CPUs before being expelled by the two 80mm fans (see pics) at the back. These two small fans in the back offer enough flow through the radiators to keep thermals within nominal limits. 

 

When you look at the design and engineering that went into building something like this, something this good, and tool-less nonetheless, it's really quite amazing to behold. What HP gave us here is far above ordinary, its "exceptional". Matter of fact, I will make the statement that the z820's cooling system is one of the most robust OEM cooling systems ever implemented for use in a workstation system. 

 

From above, sits flush with the top of the case

 

 

 

(note active cooling on the RAM as well) 

(upside down):

 

 

I was just talking about the pumps in em. I am well aware about all the airways and those are awesome.