hp laptop cpu underclocked

Hewlett-packard / Dv6-2000
November 2, 2010 at 03:14:02
Specs: Windows 7, i7 720, 6Gig DDR3
My HP DV6 has an i7 720QM running at 1.6ghz clock.

However, when I plug in a charger, this drops to a constant 928MHz.

When I pull the charger out, and it's running on battery, this goes back up to 1600MHz and becomes more variable depending on the activity.

I've checked using CPU-Z and it actually is being underclocked everytime I plug in a charger, I have no idea why.

The difference is very noticeable when I'm playing games, I can play the new Medal of Honor on high text and AA when unplugged, but only on Medium no AA when plugged in.


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#1
November 2, 2010 at 04:02:36
Laptops are supposed to do that, check the Windows 7 Power Options so they are running at maximum performance......

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#2
November 2, 2010 at 10:45:20
This is perfectly normal. The Core i7's like with other Core i series and Core 2 Duo's etc.. have Speed Steep technology which automaticly reduces the clock speed when a lot of processing power isn't needed. When you run something that needs a decent amount to a lot of processing power, then you will see a the processor relay more processing speed.

Iron Sharpens Iron.


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#3
November 2, 2010 at 15:37:04
This would be true yes, however when plugged in this does not change at all, even when playing games!
But the moment I unplug the charger, very smooth, plug it back in, laggy again.

Do you think it's the charger?


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Related Solutions

#4
November 3, 2010 at 15:15:03
Did you change the Power Options ??

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#5
November 4, 2010 at 04:16:31
look at your power options makes sure the maxium processor speed is at 100%. if none of this works. Try seeing if they have a bios update.

Iron Sharpens Iron.


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