UPDATE: Please read the entire conversation before replying! Thank you, I hate repeating myself.
I'm going to try to give all the info I can.
First off this is a laptop, HOWEVER my CPU is on a slot not integrated!
OS: Windows 7 64x home premium - genuine
Model: Dell Studio XPS 1645
Motherboard manufacturer reference: WDH9C
CPU: Intel Core i7-720QM @ 1.6ghz
GPU: ATI Mobility Radeon HD 5730
RAM: 8 GBytes DDR3 1600
I know my motherboard is not what came standard with this machines basic model. Because It has an ATI Mobility Radeon HD 5730 graphics card in it which has 1gb dedicated vram on it. Most listed 1645's have lower end cards, I don't know if this information helps.
Why I want to upgrade: I found out after ordering in 2x8gb ripjaws and receiving them yesterday that this CPU can not handle more then 8gbs RAM. NOT HAPPY! The Bios saw the RAM and everything! (People where saying that windows 7 64x home premium was the cause, which makes me laugh because my wife is running 16gb flawlessly right now on that OS) I gave her my 16gb ram sticks for the time being for her 8gb ram sticks set, both ripjaws same speed so not a bad deal. I'm just glad the 16gb is not a wasted!
My computer does get hot while running games and such, around 150F to maybe 160F. I'm thinking my heat sync is damaged because it has some melting and dents in it. It's a copper heat sync by the way. I do replace my thermal paste on a regular basis if I think it's running low, which I determine by how much heat I can feel through the keyboard. I am planning on replacing my heat sync, fan and getting a new cooling pad with more fans. So I am not sure if heat will be a determining factor for my CPU upgrade.
So after some digging I discovered my CPU is a rPGA988A slot type. The link below shows all the CPUs that fit this slot type.
I want a CPU that can handle 16gb ram with a higher clock speed. (I was looking at the 940xm but I just saw it only supports 8gb ram. Is that true?) If you all could help me with this I'd be very grateful, unless you know of a way to make this machine accept the 16gb ram!
Edited by MaggieDarkmoon, 07 May 2016 - 11:45 PM.