Dell 640m soldered on or thermal pasted processor??

I'm looking to changing the processor when the warranty ends..

but if it's a soldered on design it wouldn't be possible for me to change the processor.

I heard dell are more 'customizable' compared to other laptop brands.. is this true even for the newer dell models like the 640m??

 

I'm fairly sure that the 640m does not have a soldered on processor. You should be able to upgrade without issue.

 

bumpz.... anyone?

 

You can change the processor.But make sure you flash the bios to the lastest before putting in the new CPU. (note : are you sure the upgrade is worth it ? - Upgrading the processor has little to do with graphics/gaming performance ).

 

i want to get a low voltage c2d.. so my qn, whether it is 'changerble'

 

Two people just answered ur question...why are u still confused on it's upgradeability?

 

one definate and one should doesn't make me confident. i'll feel more comfortable with at least 2 definate yes. wouldn't u?

 

Its not possible to upgrade to a lower voltage processor. If at the moment you have a Core Duo or Core 2 Duo, then you can only upgrade within those processor ranges, if you want more performance. If you want better battery life, then try undervolting the processor using Notebook Hardware Control (NHC). Its a very good program that lets you monbitor temperatures aswell.

 

but the L7400 is using the exact same scoket as the c2d.. so shouldn't it work as well?

 

They do use the same sockets, but the voltage that the motherboard supplies to the processor is different. It simply can't adjust itself to accept the processor.

 

cant i downclock the voltage?

 

Even if you could, the E1405/640m's bios probably doesn't even support a low voltage C2D.

 

Doesn't low voltage and ultra low voltage C2D use BGA connections that have to be soldered on instead of the standard PGA connection?

 

u guys are getting me confused.. lol...

 

I don't think its worth the price for you to just get a low voltage ones, and if I'm correct, these low voltage aren't produced alot so the price is costly, and I haven't seen any place that does sells LV/ULV cpus. Just get another battery.

 

Low voltage processors will not be recognised on the motherboard of the notebook, because the BIOS does not support them. Low voltage processors are also not sold in a pin format, because the notebooks that use them solder them to the motherboard.

 

ic... thats sad to hear.. oh well guess boon's rite.. might as well get another batt instead.

 

from tis it seems that the socket is the exact same.

http://forums.vr-zone.com/showthread.php?t=84455

 

First,about the upgradeability I searched and found a manual for this laptop on DELL's site which said they are upgradeability.

Two,This article that you linked to is about the northbridge,your northbridge supports LV and ULV processors but the pin package of Core LV and ULV is FCBGA6 which is different from yours (Socket M).There has been many complaints about the fact that FCBGA6 CPU's have to be soldered into the motherboards and there is no way to use sockets.[Assuming that FCBGA6 has the same pin count as Socket M - the socket for current Core 2 and Core Normal voltage CPU's]
Also for the processor to work with the low voltage, you need the BIOS to be configured with the proper settings.Since dell had no plans for making LV and ULV 640M laptops there is no BIOS with the proper settings.
The only thing that *might* (I give no warranty) work is Intel Core Solo processors (the Single Core CPU's).
I suggest you try and find the guides on undervolting the CPU's and give up on this idea.
For more info :
http://en.wikipedia.org/wiki/List_o...essors#.22Yonah.22_.28low-voltage.2C_65_nm.29
(Please don't underestimate the forum users this much)