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Z800

Posted: Mon May 15, 2023 10:51 pm
by Jhigh567
I've done damn near the same exact build as the video with the maxed out processors and memory. My question is what are the bios settings for that machine? Is hyper-threading enabled or disabled? Have any other settings been changed to get max performance from this build?
I've noticed that using this machine with this build playing WOW, I keep getting a drop in FPS as low as 22 fps and a max of 60 fps and that's with the settings set on the low end.

I am running:
(2) Xeon X5690
384 GB ram
GeForce GTX 1080 Ti Blower Edition
1100 watt power supply
The high performance heat sinks and fans
Dual hard drive fans
Bios is stating that both processors are running at 33 C.
I am running bios v03.61
Windows 10 pro.

Any help would be appreciated.

Re: Z800

Posted: Mon May 15, 2023 11:35 pm
by Jhigh567
I just noticed that CPU-Z is stating that I have 393200 MB of ram installed but only showing 6 slot modules.

Re: Z800

Posted: Tue May 16, 2023 3:08 am
by frankr2994
Jhigh567 wrote: Mon May 15, 2023 11:35 pm I just noticed that CPU-Z is stating that I have 393200 MB of ram installed but only showing 6 slot modules.
It looks to me that you are trying to run twice the allowable memory. Max system memory shown from HP is 12 dimms at 16gb for a total of 192gb.


You can try reloading half of your memory in the order shown in that guide to get it installed in triple channel config for both CPUs.

Other than that you can download shadow of the tomb raider demo and run the benchmark. Post the results and it may help us understand what's falling behind in game.

Re: Z800

Posted: Tue May 16, 2023 4:39 pm
by Jhigh567
So you're saying to just load slots 1-6 with the 32gb sticks as it is marked in the diagram? Correct me if im wrong but that memory configuration also states that the best set up would be 8gb each slot for a total of 96gb. So should I ditch the 32gb sticks and drop down to 16gb for the max allowable "good configuration" or 8gb for the "best configuration?"

I based it off of this build so I thought that it would utilize the ram to its fullest. I guess just because you can do something, doesn't mean its always the best. But what about enabling the hyper-threading in the BIOS?


Re: Z800

Posted: Tue May 16, 2023 4:59 pm
by frankr2994
Jhigh567 wrote: Tue May 16, 2023 4:39 pm So you're saying to just load slots 1-6 with the 32gb sticks as it is marked in the diagram? Correct me if im wrong but that memory configuration also states that the best set up would be 8gb each slot for a total of 96gb. So should I ditch the 32gb sticks and drop down to 16gb for the max allowable "good configuration" or 8gb for the "best configuration?"

I based it off of this build so I thought that it would utilize the ram to its fullest. I guess just because you can do something, doesn't mean its always the best. But what about enabling the hyper-threading in the BIOS?
I can't speak from experience on the max memory. I didn't see that video that JB made until now. There's also other variables in play on memory ranking that may or may not allow your particular configuration. But yes as a test I would split a total of 6 dimms up amongst your 2 CPUs to verify operation.
If your just going to game on this then maxing the ram out is pointless. If your using this machine for something more please correct me. But for gaming if you bought a total of 6 8gb single rank modules for a total of 48gb that would most likely be the best that can be.

As far as hyperthreading. I would turn it on. There is a better chance you'll gain some performance than not.

So let's just make sure you have 3 channel memory for both CPUs, turn hyperthreading on, and re test some games. And like I said tomb raider demo is a good tool for finding bottlenecks.

Re: Z800

Posted: Tue May 16, 2023 5:16 pm
by Jhigh567
Yes this build is basically for gaming and doing paperwork for work and internet.
Not sure what you mean by having 3 channel memory.
This is what it has currently.

(12) 32GB 4Rx4 PC3-10600R DDR3 1333 ECC REG Server MEM W/Heat Sinks

https://www.ebay.com/itm/154998037981

Re: Z800

Posted: Tue May 16, 2023 6:29 pm
by frankr2994
Depending on the system and processor you can have multiple channels of memory. This doesn't have anything to do with the ram exactly. The more channels you have the higher the bandwidth. Most consumer CPUs have dual channel professional CPUs like yours have 3 channel then with later CPUs they moved to 4 and 6. So if you install 3 modules per CPU in the correct configuration you will be in 3 channel mode.

Ranking is how the memory is accessed per module. You have quad rank memory which is similar to having 4 sticks of ram in a single slot. This allows for more dense memory configurations. Down side is you can only access 1 rank at a time. Needing lots and lots of memory this is fine but having single rank can speed up access to the memory.

In your case having more memory than intended and being quad ranked it can be stressing the memory controllers in the CPUs. You're current config would work great if you were doing massive memory intensive projects or running a ton of virtual machines. It has no purpose in a gaming PC.

Please also take into consideration the age of the system when we reach an end result with this. You have CPUs of a much older architecture and they will not perform the same as say a newer 6 core with similar speeds.