Hello,
I just want to ask for guidance and looking on what I missed in my setup.
I have been using OPNsense for awhile and my normal average temperature is around 40 degrees Celsius but now suddenly my average temp for the the past few days is at 51 - 65. It is still ok but I dont know why the sudden change. I have already changed the thermal paste and check the fan. I also checked via ssh the temp some times there is 10-5 degrees discrepancy. My settings are all the same(even tunables) so I am wondering what could be the cause. To add, sometimes the web gui sometimes not loading.
OPNsense version: OPNsense 26.1
CPU Usage is less than 5%
sysctl dev.cpu | grep temperature ; sysctl dev.cpu.0.cx_usage
dev.cpu.3.temperature: 55.0C
dev.cpu.2.temperature: 55.0C
dev.cpu.1.temperature: 55.0C
dev.cpu.0.temperature: 55.0C
dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% last 190us
top
last pid: 81027; load averages: 0.06, 0.10, 0.13 up 0+03:53:00 12:18:47
84 processes: 1 running, 83 sleeping
CPU: 0.2% user, 0.0% nice, 0.5% system, 0.0% interrupt, 99.3% idle
Mem: 150M Active, 1304M Inact, 734M Wired, 371M Buf, 5626M Free
Swap: 8192M Total, 8192M Free
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
50736 root 1 20 0 229M 117M nanslp 3 2:10 0.99% php
81027 root 1 20 0 15M 3540K CPU2 2 0:00 0.14% top
71531 root 1 20 0 28M 14M select 0 0:03 0.02% python3.13
95720 hostd 7 20 0 56M 15M uwait 3 0:06 0.02% hostwatch
33067 user 1 20 0 20M 8732K select 1 0:00 0.02% sshd-sessio
extracted temp(got the top and bottom)
iso_time;cpu0temp
2026-03-08T01:00:00+08:00;39.501831968
2026-03-08T02:00:00+08:00;39.632517783
2026-03-08T03:00:00+08:00;39.166017288
2026-03-08T04:00:00+08:00;38.967615742
2026-03-08T05:00:00+08:00;39.098862608
2026-03-08T06:00:00+08:00;39.600298389
2026-03-08T07:00:00+08:00;39.801383368
2026-03-08T08:00:00+08:00;38.831919298
2026-03-08T09:00:00+08:00;39.25017225
2026-03-08T10:00:00+08:00;38.667843168
2026-03-08T11:00:00+08:00;39.165399496
2026-03-08T12:00:00+08:00;39.117431381
2026-03-08T13:00:00+08:00;38.650136232
2026-03-08T14:00:00+08:00;39.188695424
2026-03-08T15:00:00+08:00;38.983293154
2026-03-08T16:00:00+08:00;38.517028703
2026-03-08T17:00:00+08:00;38.349007411
2026-03-08T18:00:00+08:00;38.450720532
2026-03-08T19:00:00+08:00;38.333313919
2026-03-08T20:00:00+08:00;38.980787502
2026-03-08T21:00:00+08:00;38.56863079
2026-03-08T22:00:00+08:00;39.734388609
2026-03-08T23:00:00+08:00;40.564977385
2026-03-09T00:00:00+08:00;41.183512719
2026-03-09T01:00:00+08:00;40.950760141
2026-03-09T02:00:00+08:00;40.316041329
2026-03-09T03:00:00+08:00;40.166292092
2026-03-09T04:00:00+08:00;40.651377407
2026-03-09T05:00:00+08:00;40.615763181
2026-03-09T06:00:00+08:00;40.93347439
2026-03-09T07:00:00+08:00;41.550030088
2026-03-09T08:00:00+08:00;40.74892118
2026-03-09T09:00:00+08:00;39.666935675
2026-03-09T10:00:00+08:00;39.635318375
2026-03-09T11:00:00+08:00;39.749096642
2026-03-09T12:00:00+08:00;38.617916761
2026-03-09T13:00:00+08:00;39.066469403
2026-03-09T14:00:00+08:00;39.249073857
2026-03-09T15:00:00+08:00;38.635149875
2026-03-09T16:00:00+08:00;38.48258566
2026-03-09T17:00:00+08:00;38.267198096
2026-03-09T18:00:00+08:00;38.648346187
2026-03-09T19:00:00+08:00;38.417642969
2026-03-09T20:00:00+08:00;37.933184581
2026-03-09T21:00:00+08:00;38.383318703
2026-03-09T22:00:00+08:00;38.113181373
2026-03-09T23:00:00+08:00;38.735557624
2026-03-10T00:00:00+08:00;38.684067941
2026-03-10T01:00:00+08:00;38.565811831
2026-03-10T02:00:00+08:00;39.449996671
2026-03-10T03:00:00+08:00;39.798923518
2026-03-10T04:00:00+08:00;39.900916038
2026-03-10T05:00:00+08:00;40.051748882
2026-03-10T06:00:00+08:00;40.514801055
2026-03-10T07:00:00+08:00;40.265346605
2026-03-10T08:00:00+08:00;40.316730659
2026-03-10T09:00:00+08:00;40.850418056
2026-03-10T10:00:00+08:00;39.165973099
2026-03-10T11:00:00+08:00;38.55239663
2026-03-10T12:00:00+08:00;39.898803159
2026-03-10T13:00:00+08:00;40.201035849
2026-03-10T14:00:00+08:00;39.182010883
2026-03-10T15:00:00+08:00;38.716697613
2026-03-10T16:00:00+08:00;38.800787778
2026-03-10T17:00:00+08:00;38.499046184
2026-03-10T18:00:00+08:00;39.099617701
2026-03-10T19:00:00+08:00;38.965565248
2026-03-10T20:00:00+08:00;38.967365582
2026-03-10T21:00:00+08:00;38.6011765
2026-03-10T22:00:00+08:00;38.132986859
2026-03-10T23:00:00+08:00;38.401107925
2026-03-11T00:00:00+08:00;39.049420284
2026-03-11T01:00:00+08:00;39.882488699
2026-03-11T02:00:00+08:00;40.466088342
2026-03-11T03:00:00+08:00;40.632167783
2026-03-11T04:00:00+08:00;40.167200097
2026-03-11T05:00:00+08:00;40.667662571
2026-03-11T06:00:00+08:00;41.150791513
2026-03-11T07:00:00+08:00;41.699114013
2026-03-11T08:00:00+08:00;41.400905941
2026-03-11T09:00:00+08:00;40.966196631
2026-03-11T10:00:00+08:00;40.382884157
2026-03-11T11:00:00+08:00;41.031940614
2026-03-11T12:00:00+08:00;40.633327907
2026-03-11T13:00:00+08:00;40.834354453
2026-03-11T14:00:00+08:00;40.866131308
2026-03-11T15:00:00+08:00;41.568075895
2026-03-11T16:00:00+08:00;40.733257889
2026-03-11T17:00:00+08:00;39.600464931
2026-03-11T18:00:00+08:00;40.317128126
2026-03-11T19:00:00+08:00;39.798319359
2026-03-11T20:00:00+08:00;40.60170597
2026-03-11T21:00:00+08:00;40.28072274
2026-03-11T22:00:00+08:00;41.135622925
2026-03-11T23:00:00+08:00;40.331477441
2026-03-12T00:00:00+08:00;40.668529865
2026-03-12T01:00:00+08:00;41.383586477
2026-03-12T02:00:00+08:00;41.11448766
2026-03-12T03:00:00+08:00;41.648717798
2026-03-12T04:00:00+08:00;41.251932708
2026-03-12T05:00:00+08:00;42.283515842
2026-03-12T06:00:00+08:00;42.698921495
2026-03-12T07:00:00+08:00;42.715892267
2026-03-12T08:00:00+08:00;41.785796067
2026-03-12T09:00:00+08:00;42.149893635
2026-03-12T10:00:00+08:00;41.067741891
2026-03-12T11:00:00+08:00;41.182277391
2026-03-12T12:00:00+08:00;40.967727688
2026-03-12T13:00:00+08:00;41.364376388
2026-03-12T14:00:00+08:00;40.884314546
2026-03-12T15:00:00+08:00;40.349697049
2026-03-12T16:00:00+08:00;39.55129771
2026-03-12T17:00:00+08:00;39.682032953
2026-03-12T18:00:00+08:00;40.833531996
2026-03-12T19:00:00+08:00;40.564592853
2026-03-12T20:00:00+08:00;40.002586542
2026-03-12T21:00:00+08:00;40.332190381
......
2026-05-22T10:00:00+08:00;50.676778197
2026-05-22T11:00:00+08:00;55.29985955
2026-05-22T12:00:00+08:00;54.287139367
2026-05-22T13:00:00+08:00;40.867773944
2026-05-22T14:00:00+08:00;46.861393767
2026-05-22T15:00:00+08:00;51.438546709
2026-05-22T16:00:00+08:00;46.261296794
2026-05-22T17:00:00+08:00;51.52239542
2026-05-22T18:00:00+08:00;47.561388065
2026-05-22T19:00:00+08:00;44.537142484
2026-05-22T20:00:00+08:00;52.74474388
2026-05-22T21:00:00+08:00;49.007733391
2026-05-22T22:00:00+08:00;38.699059173
2026-05-22T23:00:00+08:00;41.877585445
2026-05-23T00:00:00+08:00;48.855727756
2026-05-23T01:00:00+08:00;40.78053298
2026-05-23T02:00:00+08:00;53.647166221
2026-05-23T03:00:00+08:00;45.989126212
2026-05-23T04:00:00+08:00;38.949812911
2026-05-23T05:00:00+08:00;49.310633062
2026-05-23T06:00:00+08:00;42.272814264
2026-05-23T07:00:00+08:00;48.510562677
2026-05-23T08:00:00+08:00;49.338929147
2026-05-23T09:00:00+08:00;43.815740608
2026-05-23T10:00:00+08:00;50.676554026
2026-05-23T11:00:00+08:00;64.815060946
2026-05-23T12:00:00+08:00;46.142022147
2026-05-23T13:00:00+08:00;44.949435371
2026-05-23T14:00:00+08:00;45.682182862
2026-05-23T15:00:00+08:00;47.465806768
2026-05-23T16:00:00+08:00;52.380337754
2026-05-23T17:00:00+08:00;58.931925589
2026-05-23T18:00:00+08:00;52.069109062
2026-05-23T19:00:00+08:00;44.901908827
2026-05-23T20:00:00+08:00;57.8128964
2026-05-23T21:00:00+08:00;61.165839144
2026-05-23T22:00:00+08:00;50.873811184
2026-05-23T23:00:00+08:00;41.11744837
2026-05-24T00:00:00+08:00;48.844654173
2026-05-24T01:00:00+08:00;56.715124254
2026-05-24T02:00:00+08:00;59.83360374
2026-05-24T03:00:00+08:00;60.432050829
2026-05-24T04:00:00+08:00;60.915504022
2026-05-24T05:00:00+08:00;60.868803796
2026-05-24T06:00:00+08:00;60.865501467
2026-05-24T07:00:00+08:00;61.083244347
2026-05-24T08:00:00+08:00;60.733174199
2026-05-24T09:00:00+08:00;52.830382431
2026-05-24T10:00:00+08:00;60.73294908
2026-05-24T11:00:00+08:00;61.715489559
2026-05-24T12:00:00+08:00;62.666266518
I do not have IDS/IPS enabled and no zenarmor. I only have quite few that I installed like nextDNS, cloudflared, and pulse(which is not active anymore but still installed). I already have this even before and I didnt got any spike or stable 60 degrees on my cpu temp.
Thanks!
PS. I noticed that I got the high temp after my last update on OPNsense. Coincidence? I do not know just giving an fyi.