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hp 2740p elitebook fan control issues in 26

asked 2017-09-30 19:14:00 -0500

antvrs gravatar image

Hi, thanks for checking out my problem: My laptop fan never stops. Now, the fan is noisy and will need replacement but will still need to be properly set up. Elsewhere was said to do with acpi in the BIOS, not sure if that went right. lm_sensors led to the coretemp module. Running "pwnconfig" says no module found. It's the only major problem I've had but would be a deal breaker if it's not possible to work with my system. Thanks again and, please, let me know what other details are needed. -ASV

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Hi, post here output of inxi -zSCGMsxxx. Remember to format pasted text properly - select it and press Ctrl+k.

ozeszty gravatar imageozeszty ( 2017-10-01 08:05:40 -0500 )edit

You should have edited your question instead of posting an answer.

44 °C is not that much, but it might be enough to keep the fan spinning. Over time fans and thermal compounds degrades, so they might not be able to provide sufficient cooling.

Blow some compressed air into fan intake and exhaust. If you'll be exchanging the fan, replace also thermal compound under heat-sink. I'm using Arctic-Cooling MX-4, it has good performace-price ratio.

Update BIOS and look through dmesg output, pay attention to messages in bold or red.

ozeszty gravatar imageozeszty ( 2017-10-02 03:56:12 -0500 )edit

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answered 2017-10-01 12:20:22 -0500

antvrs gravatar image
2Kernel 4.12.14-300.fc26.x86_64 x86_64 12bits 64 12gcc 7.2.1
12           12Desktop Gnome 3.24.3 12info gnome-shell 12dm gdm 12Distro Fedora release 26 (Twenty Six)
12Machine:   12Device laptop 12System Hewlett-Packard 12product HP EliteBook 2740p 12serial N/A
12           12Mobo Hewlett-Packard 12model 7007 12v KBC Version 39.38 12serial N/A
12           12BIOS Hewlett-Packard 12v 68COU Ver. F.50 12date 07/08/2014
12           12Chassis 12type 10 12serial N/A
12CPU:       12Dual core Intel Core i5 M 520 (-HT-MCP-) 12arch Nehalem rev.5 12cache 3072 KB
12           12flags (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) 12bmips 9575
12           12clock speeds 12min/max 1199/2400 MHz 121 1199 MHz 122 1466 MHz 123 1733 MHz 124 1599 MHz
12Graphics:  12Card Intel Core Processor Integrated Graphics Controller 12bus-ID 00:02.0 12chip-ID 8086:0046
12           12Display Server wayland ( 119.3 ) 12driver i915 12Resolution 1280x800@59.99hz
12           12OpenGL renderer Mesa DRI Intel Ironlake Mobile 12version 2.1 Mesa 17.1.7 12Direct Render Yes
12Sensors:   12System Temperatures: cpu 44.0C 12mobo 0.0C
12           12Fan Speeds (in rpm): cpu N/A
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Asked: 2017-09-30 19:14:00 -0500

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Last updated: Sep 30 '17