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ROG Crosshair VI overclocking thread - Page 1060

post #10591 of 17578
G.Skill DDR4 physical limitation check for Noctua NH-D15 SE-AM4 cooler in Nanoxia Project S case:

In order to be sure that one of the successful OC RAM memory boards would fit my configuration, I had to obtain the case, C6H, and D15 assemblies to check. Note that the Project S is an HTPC horizontal case with a roll out tray, and the cooler has a front and back fin assembly with the ability to operate with a single central fan or with a central and front fan. (Front is in case coordinates and is the inlet side for air flow.) Published specifications are:

Case clearance height, CPU to case cover: 170 mm
D15 cool height (above CPU): 165 mm
Front (140-mm) fan clearance above board: 32 mm
Front fin cutout clearance above CPU: 65 mm
Trident Z height: 44 mm*
FlareX height: 40 mm*
*presumably above interior base of DRAM socket

At first glance, one may see from the specifications that the front fan interferes with the RAM. If this fan is removed, essentially creating an NH-D15S SE-AM4, there is plenty of room. But what about other fan configurations?

Measurement of RAM clearance with a 120-mm fan at the front, aligned with the top of the cooler heat pipes, yields approximately 50-mm to the base of the RAM socket, so this would work with the two DRAM types, although removal of the fan before removal of the RAM would be best. (A 120-mm fan will not directly cool the outer regions of the fins.)

At the rear of the cooler there are 2.5-inches of clearance to the case tray back. The case is provided with a 120-mm x 1-inch case fan mounted in this location, not quite axially aligned with the cooler. Adding a 120-mm fan to the cooler rear is physically possible, but requires removal of the carbon fiber (?) ROG decoration cover over the I/O array for best alignment. Potential air disturbances between the fans is a consideration. Use of a 120-mm fan on the cooler rear with no case fan in that location is also possible, but seems unlikely to provide a significant benefit.

tl;dr: I conclude that use of both AM4-tailored FlareX and Intel-tailored TridentZ DRAM are feasible from a physical clearance point of view.

Some comments on case fan configuration:

The Nanoxia Project S case has apertures for six 120-mm fans and two 140-mm fans. All fans can push into or pull from removable filters. In addition, one's GPU will reject a certain amount of air through the back, and the PSU will also. For my purposes, between Ryzen 7 1800X and (not yet acquired) 1080Ti, I have decided to configure the fans somewhat differently from the suggested scheme in the case directions.

I have the five side case fans and two front case fans all pushing air into the case, drawing outside air through their respective filters (which I am reasonably sure will significantly reduce their flow rate). At 12V, the Nanoxia fans operate at low RPM, and are effectively silent. This fan configuration should produce a positive case pressure. The remaining lonely rear fan (with its filter removed) will push case air outward, aided by the PSU, GPU, leaks, and the controlled leakage from some number of PCI slot blanks that I will remove to assure maximum release of the GPU heated air while keeping the case pressure slightly positive. It will be a while before I can test this.

GPU clearance:

This case has enormous room for GPU length, and I'm not aware of any GPU candidates pushing 170 mm of height. There is, however, a potential clearance conflict between the Noctua fins and the GPU. DS15 fin distance from the center of the CPU is 75 mm. The distance from the center of the CPU socket and the center of the first X16 PCIe socket is about 85 mm. Hence, the distance from the PCIe board and the back of the GPU board cover cannot be greater than 1 cm to use that slot with the DS15.

This may be difficult to confirm from available GPU information. For example, the ROG-STRIX-GTX1080TI-O11G-GAMING has a fantastic web page, and a specifications page, but I was unable to find a drawing with this dimension. Photographs, however, suggest that the backplate is less than a fifth the GPU width of 5.25 cm from its circuit board, so the unit should fit.

The closer PCIe4_1 slot, however, will be significantly constrained in allowable PCIe board height as it is under the cooler fins and heat pipes.

Hope this helps someone.

kas
     
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AMD Ryzen 1800X ASUS ROG CROSSHAIR VI HERO X370 Asus ROG STRIX nVidia GeForce GTX1080Ti-O11G G. Skill TridentZ F4-3200C14D-32GTZ 
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post #10592 of 17578
Quote:
Originally Posted by Clukos View Post

How can you disable it in the first place? I haven't looked too much into the bios yet but I haven't seen a setting for that specifically.
There's no UEFI option for it that I've seen. You don't need to disable it in the UEFI you just need to make sure that it's not being forced on in Windows.
The old version of Ryzen Master required this and included a batch file that would set it up.
To disable it, enter this into an elevated command prompt/powershell:
Code:
bcdedit /deletevalue useplatformclock
post #10593 of 17578
Question for @Chew: Assuming I can run up to 117 BCLK with 16-16-16-36 memory, so up to 3430mhz, it doesn't seem any faster than just regular 3200mhz at 14-14-14-36. You said there were certain straps or bclks that were worse timings when you went higher. So my question is, between 100 and 117 BCLK, what is the fastest/tightest timing BCLK I should shoot for? Is it 106, 113, 117, 120? You get my point, I want to know a few of the best BCLK values to try to hit for fastest memory. Thanks
post #10594 of 17578
Nice, thank you both thumb.gif

By the way, I did boot at 4.0GHz with 1.352 load voltage (1.36 vcore + LLC1)
4.0ghz2uu3v.png

It runs in games and light benchmarks but crashes with cinebench. I'm thermal limited at this point so I'll have to wait until i get a better cpu cooler to push this further. Seems good enough so far.
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post #10595 of 17578
Quote:
Originally Posted by Clukos View Post

Nice, thank you both thumb.gif

By the way, I did boot at 4.0GHz with 1.352 load voltage (1.36 vcore + LLC1)

It runs in games and light benchmarks but crashes with cinebench. I'm thermal limited at this point so I'll have to wait until i get a better cpu cooler to push this further. Seems good enough so far.

Sounds about right. Unfortunately the voltage difference between bootable, usable and stable is huge.
post #10596 of 17578
Thread Starter 
Quote:
Originally Posted by jugs View Post

Unfortunately that does not help me and the rest of the Linux users.

Would you have access to the "BIOS and Kernel Developer’s Guide'? Or know who might?

If you or someone else is up to coding a Linux version, I can help provide info on how to do it.

Quote:
Originally Posted by Targonis View Post

That would be Elmor....not a bad idea for this to be added to the OP, but we shall see. Elmor may want to get more feedback before it goes "up top".

Yeah let's have some more feedback first, seems to be a bit buggy trying to install the service. I thought AGESA 1004a would have fixed the realtime ratio changes since Ryzen Master works now, but seems they implemented some kind of workaround rather than fix the initial issue. Will try to look into this. Anyhow, you can still use this application without HPET if you don't change the P0 ratio in the OS.
post #10597 of 17578
Quote:
Originally Posted by elmor View Post

If you or someone else is up to coding a Linux version, I can help provide info on how to do it.

Absolutely, please!
post #10598 of 17578
Just extra info on my stance with OC SW.

I installed Ryzen Master once to see if it showed anything I needed, like a stock VID or something so members sharing data for Ryzen DB could use it to say hey my CPU is x VID. It did not fulfill this. Did it show me anything extra regarding RAM timings or something relating to "Data Fabric". It did not fulfill this. Asus MemTweakIt did so is still part of my OS, but nor in the past have I used to adjust anything and nor do I see me using it in the future. It only serves as a viewer for screenies, etc.

The RM use was done on the same W7 load as using Aura. As said before OS was wiped and never used on next OS install.

I have never used AISuite on M7R or C6H.

As all I what is UEFI/BIOS setup as I want.

Monitoring for me is only HWiNFO in the main. I only use MSI AB for i2c meddling on GPU / logging graphs of data I may want, as sometimes the visual data representation is better for a purpose I may want.

So I have zero experience on what issues there could be with using "platform" OC SW. But why I stay clear of it, it's one more thing that could reset/have an issue. And I have seen on numerous occasions with GPUs when users say oh this happened or glitches. Only recently in Fiji bios mod/owners thread a few stated HBM OC not working with x OC SW / driver. Me no issues regardless of which driver as it's all set by ROM for ~1yr+.

OC via ROM is it for me, nothing else comes even close to it IMO.
Edited by gupsterg - 4/21/17 at 9:02am
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post #10599 of 17578
Quote:
Originally Posted by Clukos View Post

How can you disable it in the first place? I haven't looked too much into the bios yet but I haven't seen a setting for that specifically.

It's off by default you want to turn it on.

Following commands in administrative command prompt / powershell. Best way is to type PowerShell in Taskbar, when Powershell is listed right click and Run as Administrator.

Check HPET status:
  • bcdedit /enum
  • Look for useplatformclock Yes near the bottom


Enable HPET:
  • bcdedit /set useplatformclock true


Disable HPET:
  • bcdedit /deletevalue useplatformclock

Edit: requires reboot after changing. That is about it.
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post #10600 of 17578
Quote:
Originally Posted by elmor View Post

If you or someone else is up to coding a Linux version, I can help provide info on how to do it.

Sign me up as well :-)
    
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