Latitude E6400 Owner's Lounge

I agree with GoodBytes. I know apple store on my campus sells this keyboard/screen protector, and I really cant stand for the price coz it $20+ for a thin cloth.
I'd rather to get a screen protector like BodyGuardz and InvisibleShield

 

I was looking through some vista tips and came across this:

Tip 2: Increase SATA drive performance.

This tip “enhances” drive performance by allowing the drive in question to perform more write caching to system memory. The danger is if your system loses power and you do not have a backup power source (UPS), whatever data is cached to system memory will be lost. If you’re the adventurous type and want a bit more responsiveness out of your system, click Start, type Device Manager in the Search box, click the Device Manager, open up the Disk drives tree, right-click a drive, and select Properties. Go to the Policies tab and check “Enable Advanced Performance.” Click OK.

Do you guys do this? It seems safe as i have a battery and the charger connected most of the time.

also, im looking through my device manager and noticed "usb human interface device." What exactly is this? I dont have a fingerprint reader. And what is: SDA Standard Compliant SD Host Controller? I want to disable these if not needed. i also disabled some other stuff i didnt need.

Goodbytes said disabling his SC card reader caused his computer to heat up but i havent heard this from anyone else, so i figured id try.

 

I do it on all my systems, even my desktop which does not have a battery (However I do use a goof Power Bar, high reliable Hard Drive, and one of the best Power Supply's you can find on the market today for consumers)

Keyboard and/or mouse.

This is your SD memory card reader found next to the eject screen lid button

I have to try again with the latest drivers and BIOS, and my laptop was changed since... so... take it as a grain of salt for now.

 

Thanks! My burst speed has gone up a ton since i enabled that feature!

Perhaps that is why (besides this crappy HDD) my burst speed was low before? Is there anyway some of you guys can do a test on HD Tune and let me know your burst speed please?

Me and another user had a lower than normal speed.

 

I'm a bit puzzled why you want this. Is your keyboard marking the display?

See my results in this thread. HD Tach gives higher burst speeds than HD Tune. However, I'm not going to lose sleep over the burst speed since it is only relevant to the few MB that can be read from / written to the HDD cache. It just needs to be faster than the maximum transfer rate.

John

 

Oh boy...my burst speed is lower than my max transfer, either way.

HD tach shows it as being ~235mb/s, which is obviously wrong. However, i saw a post by you in another thread where you mentioned than vista + HD tune is giving lower speeds for internal HDDs for burst rate than expected.

 

High, but not impossible since the interface is 300MB/s (unless your HDD doesn't support that speed). I've just rerun HD Tach and get 194.6MB/s for my WD5000BEVT. HD Tune gives 83.3MB/s. These results are with XP.

I don't think it makes sense to be able to measure a transfer speed which is higher than the burst rate since the software can only measure the speed at the computer end of the interface.

Stop worrying unless other benchmarks (eg the HDD part of PCMark05) show that you have abysmal HDD performance.

John

 

Some questions:

(1)
What software can and should be used to control the fan according to the temperature of CPU (and GPU)?

(2)
What software can be used to untervolt the GPU (nvidia 160m)?
rivatuner? Has anyone tried this? Is there a howto?

(3)
Has anyone tried to used "Coollaboratory Liquid Pro" thermal paste
with an Dell Latitude E?
According to my former results with a Dell-D830 and a Dell-D800 I measured
outstanding results in cooling down my notebooks at load and at idle.

 

Has anyone definitively figured out what is causing the latency spikes? I just downloaded and installed the latest Intel Matrix Storage Manager from the Intel site, but I'm still getting some nasty spiking; I think I've isolated it to the multi-bay. Is there a fix that anyone knows about other than disabling (i.e., "safely removing") the drive?

 

The fan is already temperature control.

You can't do it with rivatunner. You can only change clock speed of teh core, memory and shader. Already when you are in battery the minimum speed is selected.

Useless. For one the thermal paste in teh Latitude E6400 is preatty good. Second, the heatsink is too far away from the CPU as its flat and uss the highest processor size, which is the motherboard northbridge. So you have a thick layer on the CPU, and some sort of sticky pad (no thermal paste) on the GPU. The best colloing method is if you have a paper thick level of thermal paste. I guess it was too expensive to bend the heatpipe in a stare like shade.