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Core 2 Duo Whining
Posted: Thu Feb 07, 2008 5:19 am
by gunston
Does anyone of you encountering high pitch whining noise for your X6x ???
Posted: Thu Feb 07, 2008 6:00 am
by gunston
Googled some solution:
using RM clock utitlity:
1. Disable C4 mode
2. Uncheck "Enable Popup mode"
don't know how much it would sacrifice the battery life.
Posted: Thu Feb 07, 2008 7:27 am
by hart22
Thanks!
That solved the whining noise for me. I'd tried NHC before but wasn't able to disable C4 using that program; RMClock is just what I was looking for. With C4 disabled I'm getting 5.5 hours of battery life on a full charge with wireless enabled.
Posted: Thu Feb 07, 2008 8:04 am
by gunston
hart22 wrote:Thanks!
That solved the whining noise for me. I'd tried NHC before but wasn't able to disable C4 using that program; RMClock is just what I was looking for. With C4 disabled I'm getting 5.5 hours of battery life on a full charge with wireless enabled.
well, for your X61t, 8cells battery can only last for 5.5hrs.
can state the room temperature, fan is always turning on?
what power manager configuration?
Posted: Thu Feb 07, 2008 11:55 am
by hart22
Room temperature is around 70 F, the fan is definitely not always turning on, the power configuration is a pretty heavily modified version of the balanced configuration. But it wasn't modifying that configuration that seemed to boost my battery life, instead what helped the most seemed to be this change in the BIOS:
config --> power --> power management
for the battery settings I set the CPU mode to "maximum battery"
Sorry if it's not exactly that command structure as I'm away from my laptop at the moment.
With those settings when I first switch to battery power on a nearly full charge (I keep the charging threshold below 100%) it reports upwards of 9 hours remaining, but then stabilizes to around 5-5.5 hours. The screen is dimmed to 40%.
But about my battery, it seems in the info page it says the maximum capacity is greater than the design capacity. Any ideas?
I talk about that here:
http://forum.thinkpads.com/viewtopic.php?t=56908
Posted: Thu Feb 07, 2008 11:17 pm
by gunston
not too sure yet. because i am still using 4cells enchanced capacity battery,
don't have the chance to test 8cells yet.
Posted: Sat Feb 09, 2008 4:07 am
by gunston
is that a way to force/ lock the CPU on C4 mode all the time?
maybe this is impossible huh?
Posted: Sat Feb 09, 2008 9:08 am
by gunston
One disadvantage is that turning C4 mode, it would drag extra 2W power in battery usage.
Posted: Sun Feb 10, 2008 4:27 am
by ducky2802
they generally give you some extra capacity on all new batteries and then rate them a bit lower...a nice change for once!
Posted: Mon Feb 11, 2008 2:43 am
by gunston
ducky2802 wrote:they generally give you some extra capacity on all new batteries and then rate them a bit lower...a nice change for once!
this is normal.