When it comes to CPU upgrades on a Laptop, I am not really for it.
A laptop when purchased directly from dell does have a few options are far as which chip you can purchase.
Are you running the 2.2GHZ Processor like stated by that other link you showed me.
The difference between 2.2GHZ and 2.6GHZ is only 400MHZ and in the real world is going to be a nominal difference.
When you run all the programs you wish to run currently...How much memory are you actually using.
I would suggest you install Core Temp
with this widget
and get a realistic idea if you are actually using almost all of that 3.5GB ram when applications are loaded.
I do not suggest a CPU upgrade for a few reasons:
-Laptops are a serious PITA to take apart they are all different when it comes to disassembling.
***** tons of screws and plastic tabs hold this bad boy together and it requires meticulous notation to make sure you put everything back together just right and do not end up with extra screws (I know from experience)
-Laptops are not like PCs where if heat becomes a problem you can simply change out the heat sink fan combo to increase cooling capacity.
In most cases a company will sell a laptop with the option for a badass chip say a 2.8 Core 2 EXTREME and GD will that thing run blazing hot, since it will use the same stock cooler that is designed to cool the 2.2GHZ without issue.
Yeah you could add an external fan, but really you can never get to the root of the problem...unless you fabricate your own cooling system. (Which is again a PITA)
-Increasing the CPU might not give you any benefits worth fighting for.
as stated above 400MHz is not much of a difference in real world performance.
plus those larger chips...if they work on your system take much more power and they will drain your battery that much faster.
-a CPU upgrade on a laptop can be costly
Here are some options I suggest for you.
1. Depending on whether you need a lot of space on your drive or if you currently have less than 100GBs of data stored on the laptop currently as well as if you have installed Core Temp widget and if you have all your apps running and still have some memory headroom left..
I suggest you purchase a SSD drive and clone off the current mechanical disk to it.
This will speed up the boot time and opening of many applications at once.
Laptop hard drives are much slower in almost any respect to SSDs.
Reason being they spin on average at 5400 RPMs, due to size and heat generated. In today's world it is not hard to find 7200 RPM drives, but I assume the reason your Laptop was so cheaply acquired would be it has a slower drive in it.
A SSD drive will greatly increase real world performance when it comes to the snappiness of your PC.
-I suggest a Crucial M4 of whichever size you need 64GB,128GB, 256GB.
2. This will require a reinstall of applications, but it will grant you access to more RAM.
Purchase windows 7 64 bit. Buy the 8GB of Memory and reinstall Windows completely.
It may take time to install everything, but it will be worth it.
3. You went from spending around $100 on Memory to now wanting to upgrade the CPU. This is all costly and you said you got this laptop on the cheap.
How about looking for a new laptop on the cheap with the 64bit architecture and the 8GB of RAM. The Dell outlet
is a great place to start. or even looking into an ACER laptop. Another fine company.
Hope this helps,