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Battery

post #1 of 13
1/26/03 at 4:26am
Thread Starter 
Hi, wow my first post. First of all I would like to say what a wonderful forum this is and how amazing you people are.

Anyways, on to my question. I'm planning on getting a Sager this summer after I can raise up enough money. I know that I really want a 5660, however I'm not sure whether the battery is long enough. I read somewhere on a previous thread that a dual battery setup will last about 2.5 hours and single 1.5. So I thought...how bout a 5650 which uses the mobile processor? I know that I dont really need much processing power because I won't really need to use this comp other than to take notes, do my programming projects, and do other stuff for school. Of course I will be using it for games too...so i figured 2ghz will be sufficient. Just wondering tho...how long will a dual battery setup last on the 5650?
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post #2 of 13
1/26/03 at 5:39am
good question.

Once clevo puts out POWERPLAY for its Radeon 9000s, btw, dell inspirons HAVE POWERPLAY support!! Then I would guess it would be slightly less than dell inspiron 8200 time of 152minutes. But that would be with 2Ghz-M, ATI POWERPLAY (http://www.anandtech.com/showdoc.html?i=1692&p=5 ) and a 4200 RPM HDD.

So IMO about 2hours on single battery.

3.5 on double.

I don't really know, just a shot in the dark... luckily I have cat vision
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post #3 of 13
1/26/03 at 3:44pm
Lol, as I said in another thread, I don't think powerplay will have a big effect on battery times... And I don't recommend getting a 4200 rpm hard drive. But, I would imagine the 5650 to get times similar to the inspiron :-) Just keep in mind that the 5650 has the older radeon mobility 7500. It's still a great card, but I thought I'd call your attention to that in case you wanted to be on the bleeding edge of graphics. Best of luck!
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post #4 of 13
1/26/03 at 4:07pm
beebster, are there any significant performance gains to be had from the 4200RPM to 5400RPM?
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post #5 of 13
1/26/03 at 4:37pm
Quote:
Originally posted by NoSkillz
beebster, are there any significant performance gains to be had from the 4200RPM to 5400RPM?
Hey, ...... I like to know as well!
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post #6 of 13
1/26/03 at 5:00pm
I would say yes you would see a performance gain. If you are contantly doing work where the harddrive has to constantly retreive data then yes you would see a performance gain. As far as numbers I cannot give you that as it varies with application. If it is games or large databases you would notice the speed difference or anything harddrive i/o intensive.
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post #7 of 13
1/26/03 at 6:05pm
Thread Starter 

another question...

wow...thx guys. Well...got another question. I think I remember someone saying you can lower the processing speed in the bios to lengthen tye battery time. Is this true? If it is...is it a significant difference?
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post #8 of 13
1/26/03 at 8:32pm
It is called Speed Step and it is not available on desktop processors.
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post #9 of 13
1/26/03 at 8:37pm
Yes, there's a setting int he bios to throttle the CPU up to 50%.

HERE'S the original thread.
You may also have to adjust your Windows power management.
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post #10 of 13
1/26/03 at 10:12pm
Woops I take that back, I forgot about that .
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post #11 of 13
1/26/03 at 10:24pm
PCTORQUE how much difference does in battery life does a 50% clocked northwood provide. It wouldn't happen to be 50% less battery usage would it, although CPU is only one the many power sucking devices in the laptop.

4200 to 5400 Hard drive is the best upgrade you can get for a laptop. You have no idea how much a 5400RPM hard drive bottlenecks a laptops performance (especially when compared to a desktop) and a 4200RPM even more so!! Don't get anything less than 5400.

Btw, 7200RPMs coming out soon, but will have max cap. of 40GB and guzzle through power.
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post #12 of 13
1/26/03 at 10:33pm
Quote:
Originally posted by Jimmy
[b]PCTORQUE how much difference does in battery life does a 50% clocked northwood provide. It wouldn't happen to be 50% less battery usage would it, although CPU is only one the many power sucking devices in the laptop.[b]
I haven't tested to compare each setting, but it's no way even close to 50%. I'll have another 5660 coming this week (haven't had a demo model in weeks) and I'll run it through a DVD playback test with each setting.
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post #13 of 13
1/26/03 at 10:39pm
yea, but CPU is only one of the major power consuming power, there is not that much difference between mobile P4s and northwoods in this respect and that is why desktop replacement can't be bothered with mobile cpus anymore. So it really won't make that much difference at 50% with all factors concerned.
The inspiron 8200 is an exception, I have no idea how it gets such good battery times. Maybe specialised batteries, ATI Powerplay and 4200RPM, but still it gets 305minutes on double battery.
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