Upgrading my CPU in Gateway P7805u FX

I've had my Gateway P7805u FX laptop for about a year now, and want to upgrade the CPU. It came with an Intel P8400, and want to upgrade it to a P9700. I've done my research, and it should be compatible. I've got the new CPU with me right now. However, I've got no idea how to do this, and I don't want to do anything stupid.

I've Google searched quite a bit, and honestly can't find a decent guide to removing a CPU and replacing it with a new one. Is there anyone who can tell me how to do this or at least point me in the right direction?

 

☻

 

Ok so I replaced the CPU. Took out the old one, put in the new one very carefully lining it up correctly with all the holes, and put everything back how I found it. Lot easier than I thought. Started the laptop, and everything seems to be working fine now with nothing unusual going on, as you can see since I'm using the laptop to post this message.

Few things though.

I saw that the old CPU had this white stuff smeared over that reflective plate on the side without the pins. My new CPU doesn't have that stuff on it. Is that ok?

Also, what can I do to make absolutely sure that the new CPU is functioning exactly like it should?

 

Alright, that's not good. I'm surprised you are using that thing without thermal paste. That's what it was, thermal paste. It's designed to keep your CPU cool through it's usage. There may have been enough on the heatsink to keep it just cool enough so it doesn't shut down, but it's recommended, not recommended, REQUIRED that you put thermal paste back on, as it stops the CPU from damaging itself.

Download and run Orthos stress test, after you reapply your thermal paste.

 

Upon reading this, I quickly shut down my laptop and looked in it again to analyze this "thermal paste" (I'm such a n00b). When I looked, it appeared that there was a pretty good size chunk on the heat sink. Enough that it smeared some on the new CPU and had excess pushed outward. Still, I spread it a little more.

This picture was taken after I pushed some of the thermal paste that was already on the heatsink and reapplied it so it would spread uniformly on the CPU. The old CPU didn't seem to gather much of the thermal paste when I took it out.

I suppose it's secure enough for me to use to it's full extent now. Is it? Think it's a good idea to go ahead with the Orthos test?

 

Lucky for you I guess. I'd still check my temperatures with a utility called HWMonitor. If you check your temperatures, then come back and tell us what they, we'll see if they are all right.

 

Yeah really, lucky for me.

Here is what HWMonitor says right now.

Core #0 - Value:29C (84F) - Min:29C (84F) - Max:38C (100F)
Core #1 - Value:29C (84F) - Min:29C (84F) - Max:34C (93F)

 

Oh wow, that's actually really good. I think it will be pretty good after all.

Have you run Orthos stress test yet?

 

Not sure I got the right Orthos program, but I assume I did. Here is where I just downloaded it from, just in case.

http://www.techpowerup.com/downloads/385/Orthos_Stress_Prime_2004.html

So I started the program, selected the "Blend - stress CPU and RAM" test, and ran it for 2 minutes 45 seconds (left every other setting the way it was).

Here are the logs:

HW Monitor says the temperatures maxed out at 56C (132F) on Core #0 and 54C (129F) on Core #1.

 

That's decent.

I would suggest you pick up some new thermal paste as well. Reusing old thermal paste is often a bad idea.

PS: Disassembly guide.

http://forum.notebookreview.com/showthread.php?t=382408

True, but doesn't hurt to get some put on soon.

 

It usually is a bad idea, but he's got awfully good temps. I'm not sure I'd mess with a good thing...

 

Yeah, you have to run it for 10 minutes or so to, to check properly.

 

I think that until his temperatures start increasing, he needn't bother with reapplying thermal paste...

 

I ran it again for 10 minutes. This time Core #0 maxed out at 60 C (140 F) and Core #1 maxed out at 57 C (134 F). I assume that's still good?

Logs:

 

Yep. Those are good temps.

 

That's pretty damn good. It's about the same as my P8400.

 

Well thank you all very much. Very helpful. +reps to all three of you.

 

Thank you very much!

 

if i were u , i'd apply some thermal paste... just in case.. also can u give the temps when u play some games like COD4 or at least do an intel burn test?