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Asked: 2021-03-04 01:21:48 +0800 CST

Why does my Webmin only show 1 CPU and only half my RAM?

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This is not answered by "Why does Ubuntu only show 3GB of RAM?"

I have 6x "HPE 8 GB 2Rx4 PC3-10600R-9" RAM sticks installed across 2 banks in my HP DL360 G6 but I only see 24GB. It was showing up correctly in ubuntu 16. Ive been on ubuntu 18 for a while now but I only just noticed its not working properly anymore.

Question, why?.

Distributor ID: Ubuntu
Description:    Ubuntu 18.04.5 LTS
Release:        18.04
Codename:       bionic

free

              total        used        free      shared  buff/cache   available
Mem:          24670         480       23836           2         353       23854
Swap:         50319           0       50319

free -m

              total        used        free      shared  buff/cache available
Mem:          24092         474       22898           2         719       23286
Swap:         49139           0       49139

free --mega

              total        used        free      shared  buff/cache   available
Mem:          24670         480       23836           2         353       23854
Swap:         50319           0       50319

In addition, my webmin used to show both CPU's but now only shows 1. Not sure why this is but if anyone could also shed some light on this, is it intended?

sudo lshw | grep -i cpu

 *-cpu:0
      description: CPU
      product: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
      bus info: cpu@0
      version: Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
      capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid dtherm ida flush_l1d

 *-cpu:1
      description: CPU
      product: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
      bus info: cpu@1
      version: Intel(R) Xeon(R) CPU X5550 @ 2.67GHz
      capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid dtherm ida flush_l1d

More info:

An examination of the bios revealed only 24GB of memory being detected. I attempted swapping the memory between slots and found that only 1 cpu bank of ram is being detected. Are there any settings which might cause this?

Update:

I just tried;

    CPU 1                CPU 2
(A) 8G, (B) 8G      (A) 8G, (B) 8G

The result was 16GB, it's just not picking up the RAM for CPU 2.

I also tried switching between mirrored and lockstep for this configuration but nothing seems to be working.

server

0 Answers