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low voltage A64 vs. mobile A64 - batterylife

post #1 of 6
10/16/04 at 8:41am
Thread Starter 
Has anyone heard of somebody popping a low voltage (35W) A64 into a notebook that previously had a mobile (61W) processor or vice versa? I'm intrested in how much my batterlife would go up with the change?
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post #2 of 6
10/16/04 at 11:45am
It all depends on wheter or not the notebook supports a low-power Mobile Athlon 64 processor and the battery capacity. I'd guess about 1 hour better battery life on average.
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post #3 of 6
10/16/04 at 12:58pm
Battery life depends on many things and I can't think of a laptop than has two modifications with only the cpu being different. I know that an eMachines M6809 with AMD 64 3200+ mobile has battery life of ~3hrs for light usage. The ferrari 3200 has battery life comparable to this, or at best 20-30min more, however, while the cpu is a low power AMD 2800, the Ferrari 3200 has a more power-consuming gpu. If, and this is a big IF, all other components have about the same power consumption, I would guess the Low Power AMD 64 2800 in the Ferrari will give ~1hr more battery life - like snorre mentioned.
Of course, you have to make sure that you can put, i.e. it is supported, a low power AMD 64 in place of a Mobile. I would be very surprised if they aren't compatible but still you have to make sure that is the case.
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post #4 of 6
10/18/04 at 1:48pm
Thread Starter 
I have a notebook very comparable to the emachines. It's based on the same Arima barebones, but manufacturered by Targa. The current cpu is a mobile 2800+ and I'm considering the Low voltage 3000+.

The main reason for the switch would be to make the notebook more silent. Currently the fan will occasionally start running if I have alot of active web surfing going on, and I would prefere it to be completely silent allways. :P
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post #5 of 6
10/19/04 at 4:54am
The main issue with the LowVoltage Athlon64s is that the chipset they run on is still a full desktop chipset & mobo, just built differently to fit inside a laptop. So you're only going to gain maybe 25% extra battery life by dropping 30W of power consumption when moving to the 35W A64.
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post #6 of 6
10/19/04 at 3:25pm
25% is not to be sniffed at!
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