Latitude E6400 Owner's Lounge

6 cell battery + P series CPU and Intel graphics = 5 hours with reasonalbe power saving enabled and stretchable to 6 hours with maximum power savings.

The nVidia GPU is an hour or so less under light usage.

9 cell batteries increase the run time by 50%.

John

 

Close enough

Maybe I was a bit optimistic on how much you can gain from undervolting. Add maybe 20 minutes instead of one hour

 

Hmm. Realistically... if I could get ~8 hours with the 9-cell battery and Nvidia graphics then I'd be happy enough to get that for the occasional game.

 

I'd say 6 hours is easy and realistic. Maybe 6.5 or even 7 with extreme tweaks, including undervolting and minimum brightness (which is perfectly usable indoors). Some high-end cards allow you to clock down the GPU to save power and reduce fan noise. I'm not sure whether this one allows that.

 

This question might have been posted before and if it was, I apologizing for asking the same thing twice. I am new to this forum and didn't find the answer.

Our company recently started purchasing the E6400/E6500's from Dell. We are getting them deployed but the systems that have bluetooth seem to have issues.

I have finally gotten my machine half way stable in the sense that it doesn't lockup/freeze as much anymore, but the bluetooth will randomly make the noise of a disconnecting USB device and then it goes Red. Bluetooth will not work again until the machine has been rebooted. This usually happens after the machine has been put in standby. Has anyone else seen this problem.

We are running XP with SP3. I slipstreamed the intel drivers into the install so the HD is in IRRT mode.

 

^ Do the machines have the 371 Bluetooth module or the 410 wide-band?

 

The problem with undervolting these days is that you can't lower the idle voltage which is where your computer will probably spend most of its time. So unless you're actually running something aside from your web browser on battery, you're probably not going to see much benefit from undervolting.

Also, the CPU idle power draw is small enough such that even if a significant idle undervolt was possible, it still probably wouldn't affect your battery run time too much.

The NVS160M does downclock whilst idling. I wish I could undervolt it or something though XD

 

They have the 410 wide-band

 

Hey there!

I was looking for the seagate firmware update today and fell on this at Dell's :

You guys had any problems with the firmware update?

Now it seems Seagate did a pretty good job pulling it off because I can't find it anywhere... If I'm not mistaked, it's upposed to make your firmware go from DEA2 to DE16 right? Clicking noise on my system is not that bad, but there too much activity for sure. I'm pretty sure the drive never spin down...

 

The firmware was removed because it destroyed Harddrive... I mean you have to send it back to Seagate (well Dell in this case which will send it to them) for a replacement and say bye bye to your data (nothing can fix the problem).

So, you DO NOT want this firmware!