Overclock.net - An Overclocking Community - Reply to Topic
Thread: Asus Z9PE-D8 Owner's thread Reply to Thread

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
05-08-2020 10:40 PM
Some misc notes on Z9PE-D8 in the year 2020

I recently ended up with this mobo as an affordable transition to something more modern.

The current cost of used components makes this less costly than a Ryzen 3800x with similar performance via two E5-2690 V2

The current advantage with this older mobo is the 256GB DDR3 RAM which is still very expensive in DDR4 which also needs an expensive Threadripper mobo and a Threadripper CPU.

Misc Notes for Personal Computer or Workstation scenarios:

- in 2020, the Ryzen is probably a better starting point if starting from scratch, and for sure if you don't have any "Tinkerer" in your genes. The E5 V3s are finally showing up cheap in surplus but that needs a V3/V4 mobo and DDR4 RAM. The V3 but not the V4 has a "Haswell Hack" overclock for running all cores in Turbo but given the price hit on DDR4, the Ryzen is still a better choice for most people, although if your needs hit a Threadripper choice, there is an agonizing "value of money" versus "Future Proof" consideration there.

- the 32 GB DDR3 RDIMM has price and availability that fluctuates a lot so much patience is required to get 8 of them at a decent price

- There is ZERO practical benefit to the almost non-existent overclocking of E5 dual CPUs

- when selecting two CPUs for personal use, you want clock speed over 3Ghz and a TDP rating of 130 watts or more. The Xeon will not exceed it's power rating so that means you want the 150 watt 2687 or the handful of 130 watt units

- without a modded BIOS, you must boot from a SSD which is not horrible and you can use multiple NVMe Drives in the expansion slots. You won't find an affordable adapter that understands PCIe bifurcatiuon but you have so many slots that 2 or three $10 NVMe slot adapters should meet most WS needs. I am using the ADATA XPG SX-8200 Pro which meets its 3000 MB/sec spec.

- GPU slot placement is sensitive and anything powerful these days kills 2 slots so one of the original scenarios of 8 GPUs is no longer useful.

- most of the enormous list of issues in this thread goes away with the latest BIOS available combined with the latest Windows 10 drivers and the result is very stable. By "latest drivers" that does not mean the default Microsoft drivers. A lot of Intel drivers don't default right etc. just list all the hardware and get various chip manufacturer drivers where often something dated 2011, 2014 etc will be "latest" compered to Windows default. Very noticeable difference in stability when making this extra effort.

- you will probably want to add a USB 3 card, since the 4 included ports is low for everyday usage as a PC.

- you will want to strongly consider your personal comfort with disabling Spectre and Meltdown patches for older Intel CPUs since for many people they just kill some performance for almost no security improvement. I personally don't want a useless perf hit on my 20 real cores!

- when initially setting up the hardware, you might need to use a full CMOS Reset far more often than you are used to doing. But it works for mysterious non booting for simple things like RAM re-config and changing GPU slot etc.

- also, on many hardware changes some sort of test seems to get invoked and the board can seem like it won't boot, but just give it an extra 2 minutes!

- compared to a single CPU consumer mobo, once it is all working, the hardware seems to flow extra fast and smooth probably due to the huge increase in PCIe lanes.

- my initial experiments with multiple GPUs suggest things will work better when using slots connected to a single CPU, so I have my GPUs on the first CPU and all the NVMe drives on the second CPU.
05-08-2020 10:06 PM
Three Rank DIMM

A DDR3 24gb HP 3 Rank RDIMM is starting to appear on ebay at a decent price.

This was used in HP servers with E5 V2 and so maybe it would work in the ASUS?

So, has anyone tried 4 of these in the Z9PE-D8?

The HP docs say all 16 slots in their server must be populated for these particular RDIMMs to work, but just seems like a sales thing.

The very detailed Fujitsu memory doc makes no reference of a 3 Rank RDIMM


So I am inclined to think that without specific BIOS support these affordable high density modules are unlikely to work...
04-15-2020 07:19 AM
Quote: Originally Posted by NoS_rb26 View Post
I disassemble the cpu and I realize that one of the sockets (socket of cpu 2) has a bent pin.
A few years ago, in a very stupid moment I accidentally bent pins in a socket 1150 mobo.

They are very hard to get straight. And very easy to miss seeing ones that are still bent.

You need a very strong magnifying glass combined with a very strong lamp.

Then it is important to rotate the motherboard 90 degrees a bunch of times due to the different angles of the pins. It took me about 10 hours with many breaks to finally be satisfied I had repaired all the pins...

You might still have other bent pins and even might want to check the "good" socket again.
04-15-2020 07:10 AM
Quote: Originally Posted by NoS_rb26 View Post
Hello, does anyone can't help me with my problem ?
I just started using this motherboard a few months ago. There are a lot of pages in this thread that are full of information.

Clear CMOS is a huge activity on even small changes with this board. Sometimes you have to remove the battery for the clear to work. And sometimes when you think it won't boot it decides eventually to start up so always give it at least 2 minutes.

Make sure your RAM is on the QVL list.

The board is also very picky about different GPU cards and which slot they are in and sometimes you just have to change the slot to get to BIOS and then you can just change back.

Although I have not tried it, (yet) the BIOS is a plug-in chip and there are a few people offering a new BIOS with any version you want for about $20 on ebay.
03-08-2020 02:02 PM
NoS_rb26 Hello, does anyone can't help me with my problem ?
02-24-2020 08:26 AM
Quote: Originally Posted by Nasmo View Post
Unfortunately, I am still stuck at pcie 3.0 x16 x4 after the bios install.
Port 2A Link Speed
02-21-2020 02:38 PM
Quote: Originally Posted by Nasmo View Post
Im gonna try this when I get my bios flasher in the mail. Hopefully I can use my top pci-e slot again @ x16 3.0
Unfortunately, I am still stuck at pcie 3.0 x16 x4 after the bios install.
02-19-2020 07:52 PM
Quote: Originally Posted by MasterHome View Post
Hello, All!
Corrected BIOS 5802 to select the operating mode of PCI-E 2a. Updated CPU microcodes. Added bootable from NVMe. Only flash the programmer. https://yadi.sk/d/JcCWqphE1UXdGQ
Im gonna try this when I get my bios flasher in the mail. Hopefully I can use my top pci-e slot again @ x16 3.0
01-27-2020 12:08 PM
Quote: Originally Posted by VitOne View Post
Dear All,

I am back to this forum. After year of usage, my Z9PE-D8 started to give me some problems. It is very difficult to boot. Sometimes I have to restart the Workstation several times before it boots.

The motherboard gives error d7. Please notice that after it starts, everything runs smoothly as usual. So the problem that I have is that the PC won't start randomly for a number of times, than it will boot and run fine until I turn it off.

Error d7 is officially listed on the manual as: "no console input devices are found".

I changed mouse, keyboard, other USB devices (I removed them all) but nothing changes. The system simply refuses to boot for a number of times and then, leaving all as it is and forcing reboots, at a certain point it will "magically" boot without errors.

During usage system is very stable. I can run 48hrs or longer analysis (COMSOL, Ansys, etc) without problems and smoothly.

I tried to search for this error code without luck, I'll try to ask Asus directly. It seems that it can be related to PSU problems (12V connector) but, as I said, after boot I can run 100% CPU for hours without problems.

I didn't change a component in the last years (this workstation is from 2014, I updated RAM and moved some components in 2016 probably) on this built and I never had particular problems.

Old video: https://www.youtube.com/watch?v=QxUsfTqEnyA
My setup is:
2 x Xeon 2687 v2
8 x 8Gb hmt31gr7cfr4a-h9 (ECC RAM)
Quadro K6000 (tried to change it, nothing changed)
Sound Blaster ZxR (tried to remove it, nothing changed)

Enermax Revolution 85+ 1250 Watt (very old PSU)
APC Smart-UPS - SMC1500I (or similar unit, I am not 100% sure about the exact model)

Does anybody have similar experience with this error code? Thank you!
I would like to inform you that, after months, I tried to solve the problem changing: PSU, VGA, CPUs, RAM, HHD.
The final solution was to change the BIOS chip. Please notice that I flashed the old BIOS several times thinking that that could be the problem, but nothing changed.

So, in case you are experiencing D7 message, you could try to replace your BIOS chip.

Best regards to all of you!
12-29-2019 06:37 AM
MasterHome Hello, All!
Corrected BIOS 5802 to select the operating mode of PCI-E 2a. Updated CPU microcodes. Added bootable from NVMe. Only flash the programmer. https://yadi.sk/d/JcCWqphE1UXdGQ
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off