-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jan Beulich wrote:
PGNet Dev <pgnet.dev+oskrn@gmail.com> 02.08.09 20:27 >>> i've built up a new openSUSE server on a
mobo: ASUS M3A78-CM, BIOS r1903 cpu: AMD 2.8GHz Phenom II X4 920 (Black)
@ BIOS, i've overclocked the CPU by 33% from 2.8Hz -> 1.33 x 2.*8 = 3.7GHz.
booting to OS, the reported(/available) CPU freq is NOT that which the BIOS reports.
questions:
(1) is this a bug, or expected behavior for OC'ing? (2) if a bug, is it in kernel, or BIOS?
BIOS: Both this
available frequency steps: 2.80 GHz, 2.10 GHz, 1.60 GHz, 800 MHz
and (presumably, as you didn't show it) /var/log/messages would confirm this. The identifiers for the corresponding frequencies are stored in ACPI tables and/or MSRs, so if the BIOS "supported" overclocking, it would have to update these tables/registers (the actual frequencies get calculated from these identifiers).
The value /proc/cpuinfo reports is simply one of the frequencies reported as available.
The thing is that the non-CnQ mode is reported as 3.7 GHz. I don't know enough about CnQ to know why that is - but values outside of the original tables are getting reported if we're seeing the 3.7 GHz there. - -Jeff - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkp29TYACgkQLPWxlyuTD7L0JQCfWOK86nMY2u4o+FGIxi7oWudq Qf8An2AVfnTC1IvVWwXrPDY6/04+H3Dt =qTYr -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org