F5F Stay Refreshed Hardware Desktop Black screen occurs during the process of adding a second CPU to Z8G4 Workstation

Black screen occurs during the process of adding a second CPU to Z8G4 Workstation

Black screen occurs during the process of adding a second CPU to Z8G4 Workstation

L
Lucie_Wlide
Junior Member
Find
10
06-22-2023, 08:58 PM
#1
I have an HP Z8 G4 workstation equipped with a Xeon Silver 4114 processor. It has a second CPU slot. I purchased an additional Xeon Silver 4114 CPU with a CPU1 slot cooler for this machine. Upon receiving it, when I installed the second CPU, I encountered a black screen during booting. There were no error beeps, and the system remained inactive for about five minutes before the fans began to speed up as if preparing to start. I have recorded the recommended RAM configuration for this setup. I have two 8 gigabyte memory sticks, one in each correct CPU slot. I tested the newer CPU in the CPU0 slot to verify functionality, and it worked properly. However, it fails when both CPUs are installed. I have updated the BIOS, but I’m unsure if there’s a specific setting in BIOS that needs to be enabled to utilize the second CPU slot.
Reply
Reply
L
Lucie_Wlide
06-22-2023, 08:58 PM #1

I have an HP Z8 G4 workstation equipped with a Xeon Silver 4114 processor. It has a second CPU slot. I purchased an additional Xeon Silver 4114 CPU with a CPU1 slot cooler for this machine. Upon receiving it, when I installed the second CPU, I encountered a black screen during booting. There were no error beeps, and the system remained inactive for about five minutes before the fans began to speed up as if preparing to start. I have recorded the recommended RAM configuration for this setup. I have two 8 gigabyte memory sticks, one in each correct CPU slot. I tested the newer CPU in the CPU0 slot to verify functionality, and it worked properly. However, it fails when both CPUs are installed. I have updated the BIOS, but I’m unsure if there’s a specific setting in BIOS that needs to be enabled to utilize the second CPU slot.

Reply
Reply
D
dragonnmmaster
Junior Member
Find
3
06-23-2023, 01:45 AM
#2
I can't find anything related to anything special you have to do with the second CPU other than the proper memory population. With four sticks that should mean the 4 slots farthest away from both processors.
In the long ago past I have run into issues mixing CPUs of the same model with different steppings. Install them one at a time and see if they are truly an exact match using CPU-Z.
I saw no evidence of physical jumpers or anything required.
Possibly clear the BIOS after both CPUs are installed?
Reply
Reply
D
dragonnmmaster
06-23-2023, 01:45 AM #2

I can't find anything related to anything special you have to do with the second CPU other than the proper memory population. With four sticks that should mean the 4 slots farthest away from both processors.
In the long ago past I have run into issues mixing CPUs of the same model with different steppings. Install them one at a time and see if they are truly an exact match using CPU-Z.
I saw no evidence of physical jumpers or anything required.
Possibly clear the BIOS after both CPUs are installed?

Reply
Reply
A
Altijd_Scoepi
Member
Find
183
06-23-2023, 02:06 AM
#3
Both processors need to share the same stepping rate or they won't function properly.
Reply
Reply
A
Altijd_Scoepi
06-23-2023, 02:06 AM #3

Both processors need to share the same stepping rate or they won't function properly.

Reply
Reply
S
Samu02
Member
Find
184
06-23-2023, 04:40 AM
#4
Yup attempted to reset CMOS as well. No luck. It might be a dead CPU slot. I've already tried putting one CPU in the CPU1 slot, but it fails with errors without any output from CPU0.
Reply
Reply
S
Samu02
06-23-2023, 04:40 AM #4

Yup attempted to reset CMOS as well. No luck. It might be a dead CPU slot. I've already tried putting one CPU in the CPU1 slot, but it fails with errors without any output from CPU0.

Reply
Reply
I
iDerpyYT
Junior Member
Find
45
06-24-2023, 11:12 AM
#5
To tell if they come from different steppings, you should look for variations in details such as measurements, markings, or other distinguishing features.
Reply
Reply
I
iDerpyYT
06-24-2023, 11:12 AM #5

To tell if they come from different steppings, you should look for variations in details such as measurements, markings, or other distinguishing features.

Reply
Reply
B
Barackouda1
Member
Find
82
06-25-2023, 08:51 PM
#6
CPU-Z for Windows users:
https://valid.x86.fr/cache/screenshot/18izt5.png
Reply
Reply
B
Barackouda1
06-25-2023, 08:51 PM #6

CPU-Z for Windows users:
https://valid.x86.fr/cache/screenshot/18izt5.png

Reply
Reply
C
Curiousbacon
Member
Find
108
06-26-2023, 12:42 AM
#7
As per the above image, everything beneath "Specification" should align precisely to avoid any complications. In an optimal scenario, you would ideally have two items from the same batch number.
Reply
Reply
C
Curiousbacon
06-26-2023, 12:42 AM #7

As per the above image, everything beneath "Specification" should align precisely to avoid any complications. In an optimal scenario, you would ideally have two items from the same batch number.

Reply
Reply
P
PancakeReign
Member
Find
59
06-26-2023, 09:02 AM
#8
Family, Model, Stepping, Ext. Family, Ext. Model, Revision remain consistent. Review the links for pictures of each CPU in CPUZ. Minor variations exist elsewhere, but it's unclear if that's the issue.
Reply
Reply
P
PancakeReign
06-26-2023, 09:02 AM #8

Family, Model, Stepping, Ext. Family, Ext. Model, Revision remain consistent. Review the links for pictures of each CPU in CPUZ. Minor variations exist elsewhere, but it's unclear if that's the issue.

Reply
Reply
L
Legl
Junior Member
Find
25
06-26-2023, 01:11 PM
#9
Attempting to run Proxmox on Windows with each CPU, but the steps remain consistent.
Stepping is the same across CPU2 and CPU1.
CPU2-Stepping displayed at ImgBB
Image showing CPU2-Stepping in ImgBB
imgbb.com
CPU1-Stepping displayed at ImgBB
Image of CPU1-Stepping in ImgBB
imgbb.com
Reply
Reply
L
Legl
06-26-2023, 01:11 PM #9

Attempting to run Proxmox on Windows with each CPU, but the steps remain consistent.
Stepping is the same across CPU2 and CPU1.
CPU2-Stepping displayed at ImgBB
Image showing CPU2-Stepping in ImgBB
imgbb.com
CPU1-Stepping displayed at ImgBB
Image of CPU1-Stepping in ImgBB
imgbb.com

Reply
Reply