Difference between revisions of "Talk:How to control fan speed"
(Adding Z61m Fan speeds in Discussionarea. Please add to the List.) |
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the displayed fan speed changes. | the displayed fan speed changes. | ||
(But i dont notice any noise difference) | (But i dont notice any noise difference) | ||
| + | |||
| + | On Z61m and Kenrel and unpatched ibm_acpi from 2.6.18: | ||
| + | on Start the Fan is disabled :( speed 0. | ||
| + | with echo enable > fan the fan goes to maximum rpm of 2400. | ||
| + | (Temperatur goes above 78°C .. Bad) | ||
| + | |||
| + | On Full CPU Duty: | ||
| + | Mode RPM | ||
| + | 0 0 (fast switch) | ||
| + | 1 2257 (slow switch, 5-10s) | ||
| + | 2 2257 | ||
| + | 3 2664 (fast switch) | ||
| + | 4 2699-2719 | ||
| + | 5 2800 | ||
| + | 6 3400 | ||
| + | 7 3284 (100%load cpu temp 68°C) | ||
| + | 8-F same as 7 | ||
| + | 0x8F 2600 !! | ||
| + | 0xFF speed is not chaning anymore ? (not measurement ?) | ||
| + | 0xCF 4200 (very slow chaning.. 30s for spin up) | ||
| + | |||
| + | (perhaps this table helps a little bit.) | ||
Revision as of 10:41, 18 November 2006
Z61m is the same like Z60.
The kernel 2.6.18 ibm_acpi 1.12a does not allow speed command. but with direct ecdump it works. the displayed fan speed changes. (But i dont notice any noise difference)
On Z61m and Kenrel and unpatched ibm_acpi from 2.6.18: on Start the Fan is disabled :( speed 0. with echo enable > fan the fan goes to maximum rpm of 2400. (Temperatur goes above 78°C .. Bad)
On Full CPU Duty: Mode RPM 0 0 (fast switch) 1 2257 (slow switch, 5-10s) 2 2257 3 2664 (fast switch) 4 2699-2719 5 2800 6 3400 7 3284 (100%load cpu temp 68°C) 8-F same as 7 0x8F 2600 !! 0xFF speed is not chaning anymore ? (not measurement ?) 0xCF 4200 (very slow chaning.. 30s for spin up)
(perhaps this table helps a little bit.)
