HP dv6z Quad - AMD A8-3530MX APU

[renkin]

So I got this laptop expecting the turbocore feature to work, but my clock doesn't go pass 1.9Ghz.

I'm pretty sure Turbocore was advertised for this laptop.


I have kernel 3.0

cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit
1900000

This shows up on my dmesg

[    7.029158] powernow-k8: Found 1 AMD A8-3530MX APU with Radeon(tm) HD Graphics (4 cpu cores) (version 2.20.00)
[    7.029440] powernow-k8: Core Performance Boosting: on.
[    7.029662] powernow-k8:    0 : pstate 0 (1900 MHz)
[    7.029862] powernow-k8:    1 : pstate 1 (1700 MHz)
[    7.030015] powernow-k8:    2 : pstate 2 (1600 MHz)
[    7.030169] powernow-k8:    3 : pstate 3 (1400 MHz)
[    7.030322] powernow-k8:    4 : pstate 4 (1200 MHz)
[    7.030476] powernow-k8:    5 : pstate 5 (1000 MHz)
[    7.030630] powernow-k8:    6 : pstate 6 (800 MHz)

Anyone know if this is in fact a BIOS limitation or a linux limitation?

[curaga]

The Windows reviews say it can't be detected from Windows either with standard tools, that it toggles on and off very fast.

If you have a bios toggle for it, try benchmarking it on and off.

[renkin]

Unfortunately, I don't have a BIOS option for that.. The BIOS (insyde) doesn't really allow many changes other than boot order and date/time.

A guy on the anandtech forums was able to get his cores to turbo just by moving some windows around.
link: http://forums.anandtech.com/showthread.php?t=2185031