Hello, I have had a new computer for about 1 year and am very happy with it - until I installed Boinc.
Normally it is about 45 degrees, but since I have been running Boinc I have system temperatures of about 90 - 96 degrees.
Do you also have this problem and if so what do you do about it?

This is what the calculation settings look like for everyone - only the priority is sometimes different

I have subscribed to the following projects:
World Community Grid
Denis@Home
Einstein@home
Asteroids@home
LHC@Home
Milkyway@home
Rosetta@home

Calculation settings
These settings are valid for all computers of this account, except

    Computers for which local settings have been saved using the BOINC Manager
    Android devices

When computer is in use
'In use' means mouse/keyboard activity in the last 3 minutes
Suspend all computing	
Suspend GPU computing	
Use at most 95% of the processors
Utilize at most 90% of processor time
Pause if the processor load from other programs exceeds the following value: 25%
Use a maximum of 50% of memory
When computer is not in use
Use at most
Requires BOINC 7.20.3+ 100 % of the processors
Use at most
Requires BOINC 7.20.3+ 100 % of processor time
Pause if the processor utilization by other programs exceeds the following value:
Requires BOINC 7.20.3+ 25 %
Use at most 90 % of memory
Pause if no mouse/keyboard activity in the last --- minutes
General
Pause while computer is running in battery mode	
Switch between tasks every 60 minutes
Save tasks at most every 60 seconds
Leave non-GPU tasks in memory when paused	
Save for at least 0.2 days
Save for an additional 0.5 days
Calculate only between: ---
hard disk
Do not use me

Many thanks in advance.

Kind regards R.Lehmeier

Here is my system and the components:

Motherboard:
Gigabyte X670 AORUS Elite AX Motherboard AMD X670 Socket AM5 ATX 

Processor:
MD Ryzen 9 7900X_12C_24T, 4.70-5.60GHz, boxed without cooler

Memory:
2x Kingston FURY DIMM 64 GB DDR5-5600_2x 32 GB_Dual-Kit_memory_black

SSD:
Samsung 990 PRO NVMe M_2 Internal hard disk SSD_2TB _MZ-V9P2T0BW_NEW OVP 8806094215038

Cooler :
be quiet! Dark Rock 4 Cooler

Kingston FURY DIMM 64 GB DDR5-5600_2x 32 GB_Dual-Kit_Memory_black

Graphics card:
Sapphire 11323-02-20G Pulse AMD Radeon RX 7900 XT Gaming graphics card with 20GB GDDR6_AMD RDNA 3

Power supply
CSV-Computer_be quiet! Dark Power 13 850W 

BDR-S13EBK_Pioneer_Blu-Ray drive_Optical drive

USB 3.0 extension:
chenyang USB 3.0 HUB 4 ports front panel to motherboard 20pin adapter with SATA power cable for 5.25” CD-ROM

Case:
be quiet! Pure Base 600

Translated with DeepL.com (free version)

inxi -Fxxxz
System:
  Kernel: 6.13.6-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
    clocksource: tsc
  Desktop: KDE Plasma v: 6.3.3 tk: Qt v: N/A wm: kwin_wayland vt: 1 dm: SDDM
    Distro: Arch Linux
Machine:
  Type: Desktop Mobo: Gigabyte model: X670 AORUS ELITE AX v: x.x
    serial: <superuser required> uuid: <superuser required> UEFI: American
    Megatrends LLC. v: F33b date: 02/21/2025
CPU:
  Info: 12-core model: AMD Ryzen 9 7900X bits: 64 type: MT MCP smt: enabled
    arch: Zen 4 rev: 2 cache: L1: 768 KiB L2: 12 MiB L3: 64 MiB
  Speed (MHz): avg: 5115 min/max: 545/5733 boost: enabled cores: 1: 5115
    2: 5115 3: 5115 4: 5115 5: 5115 6: 5115 7: 5115 8: 5115 9: 5115 10: 5115
    11: 5115 12: 5115 13: 5115 14: 5115 15: 5115 16: 5115 17: 5115 18: 5115
    19: 5115 20: 5115 21: 5115 22: 5115 23: 5115 24: 5115 bogomips: 225163
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900
    XTX/7900 GRE/7900M] vendor: Sapphire PULSE driver: amdgpu v: kernel
    arch: RDNA-3 pcie: speed: 16 GT/s lanes: 16 ports: active: DP-1,DP-2
    empty: HDMI-A-1,HDMI-A-2,Writeback-1 bus-ID: 03:00.0 chip-ID: 1002:744c
    class-ID: 0300
  Device-2: Advanced Micro Devices [AMD/ATI] Raphael vendor: Gigabyte
    driver: amdgpu v: kernel arch: RDNA-2 pcie: speed: 16 GT/s lanes: 16 ports:
    active: none empty: DP-3, DP-4, DP-5, HDMI-A-3, Writeback-2
    bus-ID: 17:00.0 chip-ID: 1002:164e class-ID: 0300 temp: 57.0 C
  Device-3: SunplusIT Depstech webcam driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 3-5:2 chip-ID: 1bdf:5050
    class-ID: 0102 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.16 with: Xwayland v: 24.1.6
    compositor: kwin_wayland driver: X: loaded: amdgpu
    unloaded: modesetting,radeon alternate: fbdev,vesa dri: radeonsi
    gpu: amdgpu d-rect: 7680x2160 display-ID: 0
  Monitor-1: DP-1 pos: right model: Samsung U32J59x serial: <filter> res:
    mode: 3840x2160 hz: 60 scale: 175% (1.75) to: 2194x1234 dpi: 140
    size: 697x392mm (27.44x15.43") diag: 800mm (31.5") modes: max: 3840x2160
    min: 720x400
  Monitor-2: DP-2 pos: primary,left model: Samsung U32J59x serial: <filter>
    res: mode: 3840x2160 hz: 60 scale: 175% (1.75) to: 2194x1234 dpi: 140
    size: 697x392mm (27.44x15.43") diag: 800mm (31.5") modes: max: 3840x2160
    min: 720x400
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: radeonsi device: 2 drv: swrast gbm: drv: radeonsi
    surfaceless: drv: radeonsi wayland: drv: radeonsi x11: drv: radeonsi
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.3.4-arch1.1
    glx-v: 1.4 direct-render: yes renderer: AMD Radeon RX 7900 XT (radeonsi
    navi31 LLVM 19.1.7 DRM 3.61 6.13.6-arch1-1) device-ID: 1002:744c
    display-ID: :1.0
  API: Vulkan v: 1.4.304 layers: 10 surfaces: xcb,xlib,wayland device: 0
    type: discrete-gpu driver: N/A device-ID: 1002:744c device: 1
    type: integrated-gpu driver: N/A device-ID: 1002:164e
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,
    kscreen-doctor, xfce4-display-settings wl: wayland-info
    x11: xdpyinfo, xprop, xrandr
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 31 HDMI/DP Audio
    driver: snd_hda_intel v: kernel pcie: speed: 16 GT/s lanes: 16
    bus-ID: 03:00.1 chip-ID: 1002:ab30 class-ID: 0403
  Device-2: Advanced Micro Devices [AMD/ATI] Rembrandt Radeon High
    Definition Audio driver: snd_hda_intel v: kernel pcie: speed: 16 GT/s
    lanes: 16 bus-ID: 17:00.1 chip-ID: 1002:1640 class-ID: 0403
  Device-3: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    vendor: Gigabyte driver: snd_hda_intel v: kernel pcie: speed: 16 GT/s
    lanes: 16 bus-ID: 17:00.6 chip-ID: 1022:15e3 class-ID: 0403
  Device-4: SunplusIT Depstech webcam driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 3-5:2 chip-ID: 1bdf:5050
    class-ID: 0102 serial: <filter>
  Device-5: C-Media Audio Adapter (Unitek Y-247A)
    driver: cmedia_hs100b,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 bus-ID: 9-1.4:6 chip-ID: 0d8c:0014 class-ID: 0300
  API: ALSA v: k6.13.6-arch1-1 status: kernel-api
  Server-1: sndiod v: N/A status: off
  Server-2: PipeWire v: 1.4.0 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin
Network:
  Device-1: Realtek RTL8125 2.5GbE vendor: Gigabyte driver: r8169 v: kernel
    pcie: speed: 5 GT/s lanes: 1 port: e000 bus-ID: 10:00.0 chip-ID: 10ec:8125
    class-ID: 0200
  IF: enp16s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  Device-2: MEDIATEK MT7922 802.11ax PCI Express Wireless Network Adapter
    driver: mt7921e v: kernel pcie: speed: 5 GT/s lanes: 1 bus-ID: 11:00.0
    chip-ID: 14c3:0616 class-ID: 0280
  IF: wlan0 state: down mac: <filter>
Bluetooth:
  Device-1: MediaTek Wireless_Device driver: btusb v: 0.8 type: USB rev: 2.1
    speed: 480 Mb/s lanes: 1 bus-ID: 3-7:4 chip-ID: 0e8d:0616 class-ID: e001
    serial: <filter>
  Report: btmgmt ID: hci0 rfk-id: 0 state: down bt-service: disabled
    rfk-block: hardware: no software: no address: N/A
Drives:
  Local Storage: total: 5.46 TiB used: 1.16 TiB (21.3%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 990 PRO 2TB size: 1.82 TiB
    speed: 63.2 Gb/s lanes: 4 tech: SSD serial: <filter> fw-rev: 4B2QJXD7
    temp: 42.9 C scheme: GPT
  ID-2: /dev/sda vendor: Western Digital model: WD40EFRX-68N32N0
    size: 3.64 TiB type: USB rev: 3.1 spd: 5 Gb/s lanes: 1 tech: HDD rpm: 5400
    serial: <filter> fw-rev: 1021 scheme: GPT
Partition:
  ID-1: / size: 195.31 GiB used: 75.32 GiB (38.6%) fs: btrfs
    dev: /dev/nvme0n1p2
  ID-2: /boot/efi size: 2 GiB used: 584 KiB (0.0%) fs: vfat
    dev: /dev/nvme0n1p1
  ID-3: /home size: 1.63 TiB used: 1.09 TiB (66.9%) fs: btrfs
    dev: /dev/nvme0n1p3
  ID-4: /var/log size: 195.31 GiB used: 75.32 GiB (38.6%) fs: btrfs
    dev: /dev/nvme0n1p2
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 95.8 C mobo: 38.0 C
  Fan Speeds (rpm): N/A
  GPU: device: amdgpu temp: 47.0 C mem: 58.0 C fan: 0 watts: 33.00
    device: amdgpu temp: 57.0 C
Info:
  Memory: total: 128 GiB note: est. available: 124.91 GiB
    used: 19.15 GiB (15.3%)
  Processes: 573 Power: uptime: 10m states: freeze,mem,disk suspend: deep
    wakeups: 0 hibernate: platform Init: systemd v: 257 default: graphical
  Packages: 2507 pm: pacman pkgs: 2493 pm: flatpak pkgs: 14 Compilers:
    clang: 19.1.7 gcc: 14.2.1 Shell: Bash v: 5.2.37 running-in: yakuake
    inxi: 3.3.37

The cooling does appear to be marginal, whilst the CPU has a TDP of 170w and the cooler can cope with 200w the CPU is capable of burning through 230w w at full output and Boinc will take the power output as high as it will go.

I’d set the CPU Time to 100% and the CPU Count to, say, 75% and see if that helps.

I’d set the CPU Time to 100% and the CPU Count to, say, 75% and see if that helps.

I have the 16 core variant of the Ryzen9. Similarly I see temps going up to 96C if I utilise all cores. Certainly with the projects I run it isn't worth going into using virtual cores as you then get two tasks split across a core and total throughput is reduced. I go for a maximum of 14 out of 16 cores this time of year but cut that down to 12 so 3/4 of cores rather than threads. Again in theory my cooler should be able to handle the heat produced by my CPU but in practice it struggles. Right now with 10 cores active Tcl on Psensors is showing about 70C. Do you know which of the temperature measurements sensors on the CPU is showing the very high ones? If it is say the one labled composite or edge, I would be very worried as they sit around 40C even when three of the others go above 90C. Currently they are around 33C.

Processor:
MD Ryzen 9 7900X_12C_24T, 4.70-5.60GHz
.
.
.
since I have been running Boinc I have system temperatures of about 90 - 96 degrees

This is normal for modern CPUs like this.
Under permanent load the CPU increases it's core frequency up to max_freq (which in turn depends on how many cores are under load).
If other limits are reached before - like max_temp - those engage.

If you feel uncomfortable with 96C you may check your BIOS options.
There should be a switch to limit max_temp to 85C, may be 75C.

No mention of the CPU cooler.
For a CPU such as that, you want a higher end AIO water cooler, or at the very least a very high end Air cooler.
And i'd suggest at least 2 * 140mm high airflow case fans on the front (The Silent wings Pro 4 set to high speed are excellent while still being very quiet for the amount of air they can shift).

---

Grant
Darwin NT.

In reply to Grant (SSSF)'s message of 14 Mar 2025:

No mention of the CPU cooler.
For a CPU such as that, you want a higher end AIO water cooler, or at the very least a very high end Air cooler.
And i'd suggest at least 2 * 140mm high airflow case fans on the front (The Silent wings Pro 4 set to high speed are excellent while still being very quiet for the amount of air they can shift).

My apologies- i missed it when going through the list ealrier.

The Dark Rock 4 Cooler is rated at 200W (some say 250W), the Ryzen 9 7900X is rated at 170W. So it's within it's rating, but at the upper end. Whereas a water cooler would be exhausting the CPU heat out of the case, the Dark Rock dumps the CPU heat into the case, making the air it's using to cool the CPU pre-heated even further (the lower the ambient temperature, the better the cooling effect).
And so without extremely good case cooling, the Dark Rock will struggle. I would suggest a higher end CPU cooler (250W+ rating, 300W min IMHO), or preferably water cooled (eg a All in one- AIO), and improved case cooling as in my earlier post will make the biggest difference.
Do the improved case cooling and see what effect it has on temperatures, and then go from there.


Even so, the current series high-end CPUs are actually rated to operate at up to 95°c (although 80°c is my personal limit).

---

Grant
Darwin NT.

Even so, the current series high-end CPUs are actually rated to operate at up to 95°c (although 80°c is my personal limit).

I try and stick to 85C but I am going to add another case fan to see if I can run another core or two even in summer.

Ok, so I should improve the fans.
Does anyone have any suggestions as to which one to use?

In reply to Lehmeier's message of 14 Mar 2025:

Ok, so I should improve the fans.
Does anyone have any suggestions as to which one to use?

And i'd suggest at least 2 * 140mm high airflow case fans on the front (The Silent wings Pro 4 set to high speed are excellent while still being very quiet for the amount of air they can shift).

I recently replaced some of my existing case fans with 140mm Silent wings Pro 4 fans.
I'm very happy with the change- they shift slightly more air than the old fans, yet don't make nearly as much noise- even when running flat out. Keep in mind that in the motor hub they have a built in speed switch- and the default is the low speed setting. You want to set it to the max/high speed position.
Depending on your existing rear case fan, if you can, replacing it with the same 140mm fan (or the 120mm version) will also help get the heat out of the case, letting the CPU fan have cooler air to help remove more heat from the CPU.


Depending on your motherboard, there will be options to set the fan speeds there- for my systems i have the CPU (in my case radiator and water pump) fan speeds controlled by the CPU temperature (in this case that is as measured by the motherboard, not the temperature sensors in the CPU itself, so the temperature is set 10°c lower than my desired CPU temperature as the motherboard sensor reads 10°c lower than the actual CPU temperature). And the case fans are controlled by the VRM (Voltage Regular Module- the motherboard voltage regulators). The hotter they are, then the hotter the case will get, so the faster the case fans run.

That way when the case gets hot, all the fans run as fast as they need to, to keep the temperatures within my preferred limits. If the temperatures aren't that high, then the fans ramp down accordingly. With my ambient temperatures around 32° to 35°c, they need to run pretty much close to flat out, with the aircon on & the temperature down around 27°c then they only need to run at about 85% to 90% of their maximum speed (this is with 80W CPUs, and 175W & 190W GPU loads).



An easy way to see how much of an impact better fans may have- pull the side off of the case, and aim a desktop or pedestal fan in there from a metre or two away to get the hot air out of it & see what effect it has the CPU temperatures.

---

Grant
Darwin NT.

So, I have now found a possibility.
In the Bios there is an option under “ Tweaker => Precision Boost Overdrive (PBO ) Enhancement ” to set different degrees and levels. I selected 80 level 1 there and it now oscillates around 80 degrees.

Many thanks for your help.