Unsolved
4 Posts
0
593
July 28th, 2021 12:00
C6100 Boot Loops
Anyone here super experienced with this chassis?
None of the blades are powering on. Regardless of ram/cpus (even taking them from another working machine) the LEDs for power on the ears cycle between amber blinking and green blinking, no video out, etc. The LEDs on the motherboard are solid on the working, powered on blades in the other chassis, but blink on the problem chassis/blades.
Connecting ethernet to the IPMI cables gets the LEDs for the IPMI port to light up, but without being able to boot into bios I can't set it up to connect.
Even with only one working ram stick in and cpus in, no dice. No VGA out or anything.
Swapping between different slots doesn't work either.
The two PSUs are working, and the LEDs stay on and green.
Even with one blade in, the issue persists.
On 120 (previous issues were on 208v):
Boot loops: All lights solid green. Fans spin up then spin down after a few seconds, servers shut down, and come back up, and this loops. No keyboard LEDs or vga signal. IPMI lights blink still.
0 events found
DELL-Young E
Moderator
•
5.4K Posts
0
July 28th, 2021 20:00
Hi, shall we try this?
Minimum to POST
Minimum Components
System will not turn on if any of the following are not properly installed
On the Node
On the Chassis
CPU
For troubleshooting, you can power on and get video with only one CPU installed to verify sockets/cpu are good.
Video Message
Unsupported CPU combination.
System Halted!
Example of usage:
Memory
A single DIMM configuration is supported during development with a warning message during POST. This will allow troubleshooting to determine slot or DIMM failure.
Tayloregleston
4 Posts
0
August 3rd, 2021 17:00
I tried your advice, and thanks for the response. None of the blades boot, and both on 120 and 208 have the same symptoms (blinking amber and green leds, blinking motherboard leds)
I tried with only one DIMM (RAM passed memtest in a working server and was a type that works in these) and with one or both CPUs which were also the same socket and worked in other servers. I tried this on all 4 nodes.
The PSUs are both solid green. The fans eventually spin down, and the nodes seem to reboot.
There is no video out, and keyboard doesn't respond when connected.
I tried connecting the IPMI port on all 4 blades. My modem settings when trying at home never showed any new device on the network/ethernet, and nothing new showed up on arp -a or nmap after connecting any of the nodes.
DELL-Young E
Moderator
•
5.4K Posts
0
August 3rd, 2021 19:00
Hi, could you access iDRAC to see how the system is doing?
Tayloregleston
4 Posts
0
August 3rd, 2021 20:00
Thanks for replying.
No. When I said IPMI, I was referring to iDRAC/BMC.
The LED on the nodes blinks when a cable is connected, but it never gets an IP over DHCP (doesn't show up in modem info or in arp tables)
This is the case with all 4 nodes in the chassis
DELL-Young E
Moderator
•
5.4K Posts
0
August 3rd, 2021 22:00
Hi, since you said all the nodes show the same symptom, now it seems like we'll have to suspect the chassis' backplane or the PSU.
Tayloregleston
4 Posts
0
August 3rd, 2021 23:00
Any way of telling that?
I want to think the PSUs are fine as the lights on both are green and don't blink or anything.
DELL-Erman O
Moderator
•
3K Posts
0
August 3rd, 2021 23:00
Hi,
Probably it might be trying to boot but can't find any bootable partition. It reminds me that error https://dell.to/3Cf8RFl and mostly FW update fixed this issue. But I reviewed the thread and I guess you can't reach iDRAC. Might be you can try to reach on directly iDRAC port.
Could you try to drain power, I know it may not relevant directly to this issue but if the system has static electricity it can be helpful.