Getting the CPU and heatsink out (M570RU) -- any tricks?

Looks like I'll do the CPU swap over the weekend or Monday whenever I get a free moment. Fun times

In preparation I thought I'd do a bit of a cleaning inside, get the dust out of the fans and vents and clear up the area a bit, as I had a bit of time just now. (Amazing how much dust gets into them vents! Compressed air cans ftw!)

Anyway, is there a lock mechanism on the heatsink? I took a quick look over but of course thats when the baby decided would be a clever time to cry a bit.

Anyone have a pic of the exposed cpu or notes on how to get it up? What kind of lock does the cpu use.. a lever-style lock or which?

jeff

 

It seems like you can use the service manual. Do you have the thermal paste ready? You will need a flat head screw driver to unlock the CPU.

 

I picked up some MX2 paste so I think I'm good to go.

Is there an m570ru service manual around? I've got the user-manual included with the beast, but it of course is all external pics.

(The m570ru owners lounge thread here doesn't have a link, as I'd hoped

jeff

 

PM theriko for it

 

What is the chip to the right of the CPU slot? ie: The CPU is under the brass heatsink/pipe, and to the right of it is the silver heatsink with the left/right-side screws affixing it. I took the heatsink off out of curiousity and its got only a heatpad (no thermal grease) .. is this worth replacing the pad with grease, or is the pad needed for spacing?

(The service manual doesn't comment on that chip. Memory controller or somesuch I guess..)

jeff

 

no do not use grease where the pad was the grease is not thick enough and you will not make proper contact thats why there is a pad there instead of grease from the factory just reuse the pad unless its torn up or something try to avoid touching it to much to keep the grease from you fingers off of it also

 

I was all worked up, but turned out to be a 5 minute job to swap CPUs. You forget how easy these Clevos are to get inside of Now, did I do it right...

I left the overclock disabled so am at 2.8; the two BIOS popup options.. are they to go to 3.0 and 3.2 ghz?

Anyway, on boot I figred up CPUID Hardware Monitor to watch temps and it flew right up to about 88 deg celsius right away, but it seems idling around 60 right now (which is about the same as my T7700.) CPU-Z shows that its actually sitting at 1.6GHz while idling right now though. Seems a bit high from what you said though, but I'm on the old heatsink with MX2 paste on it (rather, I pasted on the cpu after plugging it in, and then just put the freshly cleaned heatsink on it; perhaps I should've butered the heatsink side too?)

PErhaps I'll order the larger heatsink and backplastic from Sager before doing much OC testing, in case she overheats right up.

Sitting at 55-57 now, which is pretty good.

Guess I'll fire up something on the CPU (run some compiles over and over, or perhaps fire up Warcraft and toss it in minimized or something) and see how the CPU heat goes.

Thanks for all yor tips everyone so far; I know its not a big deal, but frying my beastie is

jeff

edit: At some load, just recompiling some code 60 times in a row it peaked around 85 deg celsius on both cores, just rested there. Killed the load and shes immediately down to 68 and creeping downwards.

I'll fire up a game now and see how the cpu+gpu temps go .. so far the gpu has stayed at 51 deg celsius the whole time, which is fine. (the ACPI therm says it hit 89 when the CPU's were high as well.. is that an overall temp, or some specific component. That seems to be running pretty warm..)

edit: Fired up Dawn of War 2; CPU capped at 87/89 (ouch!) and 8800GTX at 70 deg celsius. ACPI THRM was up to 92 which seems pretty blistering hot.

I'm using a thermeltak unpowered coolerpad .. should I pick up a usb powered fan coolerpad to help bring things down? seems hot to me!

 

You temperature seems high (way too high actually considering how powerful the cooling system is). Did you clean up the old thermal paste prior to the new one?

 

same question how did you re-apply the thermal paste? my temps were def not that high on my system with the x9000 and the standard heat sink if i remember right i used to idle right around 44 or so and peaked at 75-78 at times but never constantly though i dont think i ever remember getting into the 80's

 

Is the 80s a risky temperature to be at?

I picked up some isopropyl rubbing alcohol and used some q-tips to try and rub off the thermal paste that was on the heatsink .. it seemed really thin and uneven on there. I must admit it did't come off really well so perhaps its an issue.

I'll take a stab at it again soon, and avoid any real loads/temps until then.

jeff

 

Whats a reliable way to get the old paste off the heat sink? It was on there pretty good. Just keep at it with the rubbing alcohol and q-tip? perhaps put some alcohol on there and then use a credit card to 'scrape' at it?

jeff

 

Yes, 80C (though about 100C is the shutdown point) is where I wouldn't want my CPU to be.

I actually just finished AS5ing my brother's Q6600. What I did is use that 99.9% Isopropyl Alcohol (IA) with Q-tips to get the large chunks of old grease off the CPU and HS. Then I switched to TP with some IA and rubbed both the CPU and HS until no more old grease was on the TP. Let them both dry for 15 min then re-apply AS5 with a credit card.

 

This is a thread I made 3 years ago regarding re-apply the thermal paste on my thinkpad, maybe it can help.
http://forum.thinkpads.com/viewtopic.php?f=2&t=24621

My English was rather, poor back to the day, so please bare with me.

 

Good link. I don't know if you still(?) use a ruler to spread the grease. I find a credit/gift card works really well since it's so flexible.

 

I used ruler? LOL

 

In this pic, or at least it seems like you used one because there is grease on the edge of it.

 

Oh LOL! Yes I did!

 

My goodness, looking better so far.

When I took the heat sink off the other day, it had what looked like a machine-applied gray layer of thermel goo, presumably AS5. Anyway it was hardened on there good, with some ridges around the CPU border (like dunes in a dessert I chipped away the dunes and applied MX2 in there and figured it was good.. but I did not chip away an excessive amount of the machine laid perfect square. Perhaps the new CPU didn't lie perfectly within the bounds of the chipped away area?

Anyway this round I took a credit card and chipped away for a good 10 minutes to widen up the circle of cleared area; it'd take quit a while to get the whole square off, but since it was untouched originally I fiugre that it is not useful to the heat transfer process. I chipped away until I had probably an inch or so rectangle within the larger borders of whatever it was. Then alcohol cleaned it good to make sure no pre-existing goo was around (AS5 is conductive if I recall right) and let it aside for 10 mins to dry off from the alcy. Also alc'd the CPU again to get it nice and shiny. After 10 mins I buttered the top of the CPU with a light dose of MX2 as well.

Sandwhich together and fire the machine up .. the fans didn't come on right away. It was at 35 deg celsius for a few mins. Its _never_ done that .. the day I received it, the fans came on when it was turned on. It _always_ ran hot (45+) so maybe the thermal goo was not great or the T7700 was a hot always.

Right now its coasting along at 45 deg celsius, no load, which seems to be what zfactor said his was. Good enough for him means good enough for a noob like me

Now, let me load it up with some compilations..

Seems to be hitting 78 give or take at load, though is touching up to 80.. just hit 81 and back to 78. Not sure how accurate the sensor or the software is, but seems to be sitting now at 81 pretty solid, under a heavy load. (ACPI THRM says 86)

So much better than before, but still seems a little hot. (This is at 2.8, I've not tried the OC'd modes.)

Compilation loop stopped and boom, right back down to 68, not bad.

What do you think of those temps?

(45 unloaded, 80 give or take a degree at load)?

jeff

 

One additional curiousity .. fire up the lappy and do only basic stuff (web, email, ssh, etc) and it stays around 45 deg for quite awhile; do somethign heavy to test the loaded temps up to 70 deg, and then back and let the lappy do nothing at all, and it tends to sit around 55 or so.. never gets lower; a reboot and shes back at 40-45 no problem.

Do these sensors get 'stuck', or is this just normal thermal behaviour. I wonder how accurate these guys are?

To help keep my temps down (had it go to 87 again today while in a 20min DoW2 session to test it), I ordered a Zalman NC1000, and also ordered the larger heatsink and plastic from Sager. So hopefully in a few days I can redo the whole procedure (with a virgin heatsink, woowoo!) and see how she goes tempwise.

jeff

 

Looking at http://www.xoticpc.com/laptop/5796/579617.jpg .. the sink looks similar, but.. this is a 5796 and maybe this is different than the extreme edition heatsink in the 5893 or whatever it is that I need/ordered.

1) Ah found better pics here:

http://www.powernotebooks.com/specs/images/5790/5793open.jpg
and http://www.powernotebooks.com/specs/images/5790/5793-Heatpipe.jpg
and external http://www.powernotebooks.com/specs/images/5790/5793bottom.jpg

So a little more surface perhaps on the arm over the cpu, but mostly a taller fin at the back and plastic to allow for that, so its really all in the fin surface area. Hope that really helps, without making the laptop rickety/tilty on a flat surface

jeff

 

It is just added fin surface area.

It does not make the laptop rickety/tilty because of the height of the rear feet - it just fits in below them