P4 hitting 71c

[Steven]

I've got a laptop with a 640 pentium 4 3.2ghz 775pin
My problem is, it constantly gets temperatures in the upper 60's, and on one occasion it hit 71c.
I thought of pulling the processor out, putting some arctic silver on it, and just making sure everything is ok in there. Does anyone know how processors in laptops are bound to the heatsinks? I know that the processor is not wired to the board, it's on a socket. But I don't know if the HSF is a pressureclip (like a desktop) or if it's epoxied on the CPU.
It's a Hewlett Packard ZD8105ca

[AMD]

Take it back to the store and get something which runs at a reasonable temperature. The higher end P4s run ridiculously hot, and it probably eats up the battery in no time.

Pentium M or mobile athlon is a better choice.

[Dr.Dan]

If buying a new laptop, I wouldn't even consider anything other than one of the mobile cpu's
Anything else just doesn't make sense...

[Steven]

Well, battery life isnt my concern.
Hey AMD, if u arent going to reply to my question, DONT POST
I like this CPU, it's way faster than any mobile CPU. I wont trade speed for battery life.

[AMD]

Wow, sorry. :rolleyes: :rolleyes:

Have fun with your overheating P4 - don't complain when it fails. Any laptop that has that kind of issue out of the box isn't worth anyone's time. The mobiles accomplish a heck of a lot more per clock cycle.

[Limey32]

Agreed.. those pentium m's are the ONLY choice in a laptop. Heck, they make for an excellent silent desktop, overclocking like mad is no problem, and they run very cool. If you have a cpu running at 71, you are bound for a world of hurt.

[Steven]

Ok.... That's why I am here asking for opionions. I think I made it clear I would rather find a way to cool this processor rather than go spend money on something a fraction of the speed.
If U haven't any solutions, DONT POST

[Dr.Dan]

You asked for opinions and you're getting them... I'm sorry they are not to your liking :(

And if you think a Pentium M is only a fraction of the speed of the P4, you're sadly mistaken... please do some research on them before jumping to that conclusion ;)

[glitch]

Intel has taken the Mhz myth to epic proportions...maybe that's why they havent switched their desktop line to their Pentium-M technology because they know the the masses, who usually don't know diddly squat, will start complaining and start looking elsewhere.
I love you Intel.

[Chrispy]

to the OP, have you ever actually looked at benchmarks comparing mobile cpu's to the type you have? I'm guessing not...because you seem to be under the impression that more GHz = faster and better.....

[Nuke]

Pentium M 1.7GHZ is not equal to Pentium 4 1.7 GHZ. The Pentium M is much faster than that.

[Ken_ver_1_5]

I don't know much about laptops but isn't there a cooling device
that gos on the bottom to help cool the laptop down.
maybe you could look into one of those.

[Goodwrench]

Steven, I'm guessing by the CPU that this HP may be still under warranty. If so, let HP worry about the heat issue as it should not be reaching those temps. A desktop P4 will inherently run hotter than an M, but will run relatively cool with a stock heatsink and fan as well as a proper TAC 1.1 chasis. The P4 desktop CPU were not designed to run in a laptop because of the requirements for such a large heatsink and fan designed by Intel for the desktop chasis. They have come out with a BTX design which utilizes passive and aligned airfolw but that is a different technology all together. HP must have considered and designed an alterative cooling method for your notebook which would not include having you to open it up and adding anything on your own. I would definitely contact HP on this issue. BTW, there is little wrong with purchasing a notebook with Steven's config as long as the design takes care of the heat issue. Some people prefer speed over other features such as battery life. Where the M's shine is when the AC power is cut. An M's speed will drop very little if any at all whereas a P4 cpu will drop almost by half. Steven, one other mention, just be sure you are using your notebook on a hard surface. Some of the cooling may be located on the bottom of the unit.

[Mischief007]

Steven: Buy a laptop cooler. You can research them at www.tomshardware.com and find one to your liking.

[Steven]

Sorry guys, recent ex-smoker. I have bursts of sudden anger :)
Anyhow, last night I opened her up, and put some AS3 on the cpu / heatsink, removed the useless fan Grill and added a tiny heatsink on a nearby chip, which got REALLY hot. (mosfett? clock generator maybe?) anyhow, it sits at 47 idle, 61c full load. I've got a coolermaster aluminum laptop cooler coming in the mail (Canada computers) maybe I can get that to sub 60's temperatures. Thanks all, and sorry again, but if this dosent work, I will lookinto getting a P4M

Do P4 M's use socket 775? and also what bus speed are they? I've heard they are either 400 or 533mhz...

[Dr.Dan]

No, not a P4M, it's just PM (Pentium Mobile)... and they're a 533fsb... I'm not sure of the socket though... never looked into it.

The Intel Pentium M and AMD Mobile are both very fast and yet run very cool... bonus is long battery life.

I think I made an assumption too... that you just got this laptop.
That's why we're telling you to change to another laptop... but since you've opened it up, I guess it won't be going back now anyway.:mbx:

Good Luck with the temp control... keep us up to date on how it goes :)

[Steven]

Thanks for clearing that up :)
I just looked up the Pentium M Specs, they doo make them for 775 sockets. But, since it's hewlett packard, I wonder if this motherboard will take a different CPU?
The Mobo is a Quanta 3082
Yes, i'm running it on a hard surface, all 3 intake fans are on the bottom :mad:
However, the feet on the bottom allow for a quarter inch gap, and all three fans are 60mm. I was thinking of making my own rubber feet (half inch high?) that could drop a degree of two there.
As for battery life, this thing has a MONSTER size battery compared to most laptops. When unplugged, at the desktop, it lasts around 112 minutes, and in a heavy game like Battlefield 2, it lasts a whole 40 minutes :)
But, the mobile aspect wasn't the reason I purchased a "desktop replacement" laptop. When I had a desktop, I found myself carrying it around too much, going to friends houses with a huge 19 inch monitor and a 50 pound case was getting way too annoying. As big as this laptop is, it is a fraction of the size of a desktop, at similar performance. I rarely rely on battery power, but it helps. Kind of like carrying an APC around with me :)

[Goodwrench]

FYI... there are currently 5 levels, if you will, of mobile Intel processors. They are as follows:

1-

Pentium M

* the above cpu's are a required component of the Centrino technology along with the Mobile 915 express or 855 chpst family and Intel Pro wireless.

2-

Mobile Pentium 4 Processor - M

3-

Mobile Pentium 4 Processor W/ HT


4-

Celeron M Processor

5-

Mobile Celeron Processor

[Steven]

kool
and the dumbass I am had to get the one with the desktop chip :)
Seriously tho, I would rather this one than any of those. Yes, it runs very hot. But i've got that under control after some modding. The extra speed is worth the couple days of headache.

[Steven]

Ok, with the cooler, i'm topping out at 58c load with the fans off. With the fans on, it goes up to 55. WOW
To my horror, some people on a Hewlett Packard forum were running their ZD8000 laptops at 79c! Aahhh! and they said it was WITHIN REASON! lol
I'm just happy I got mine all figured out. I'm not going to overclock or anything, I just diddn't like the idea that at one point my CPU hit 71. Thanks guys for all your support!

[Dr.Dan]

Geez... 70+ °C... I hope people don't actually use these laptops on their lap

Yeoooooowwwwww!!! :eek:

[Steven]

lol
Shoulda got the one with the Athlon 64... But it's hard to find an A64 laptop with a decent video card in this area. The main reason I got this one is cause of the X600, the best athlon 64 laptop I could find had a Radeon 9600 128mb

[Mischief007]

My laptop is a 2.8 P4 (Desktop CPU) and at full load runs between 60 and 65 celsius. It doesn't do that anymore because I don't use it like I used to.

I'm glad you got it to cool down even more and 79 is ridiculous. They are shorting the life of the CPU big time.

[cam124]

I have a laptop and it also gets to insanely high temperatures...i went out and got a new laptop cooler at Canadacomputers. The cooler helped my pc cool down and even increased my performance without blowing the insides. Heres the link for thecooler...

http://canadacomputers.com/index.php?do=ShowProduct&cmd=pd&pid=002952&cid=896.276

Hope that helps!!!

[Steven]

I steered away from the Anted cooler, don't like the plastic flimsy feel of it :)
I went with the solid aluminum Coolermaster. Plus it uses less power.
Update: i'm running 46 idle, 59-60 Full load (Battlefield2, UT2K4, Doom3)
Thanks for the suggestion cam!

[Highway_Yellow]

Hi,

I have the same problem with a Compaq X6000, bought in May 2005, Quanta 3082 motherboard 2.8 P4 CPU.
It's been overheating for some 2-3 days. Last week I used it in a very dusty environment, and my guess is that the problem is the dust.
If any of you has this model, and has opened it, can you tell me how to open it to get to the fans and processor? I unscrewed all the screws on the bottom lid, including the ones under the battery, but the case won't go out.

Thank you,
Ana

[Steven]

Holly thread ressurrection!
Yeah, with the 3082 mobo, it's difficult to get at the cpu. I basicly tore it all apart, gave up when I couldnt get at the CPU. Second attempt, dont remember what I did differently but i got it. Dosent matter tho, I'll be getting a new core duo 2 laptop soon. P4's were never meant to go in a laptop :)

[Highway_Yellow]

I found the clem that keeps the right side of the bottom lid - as you look from top. It's between the card reader and the HP USB special whatever. This frees the right side of the lid.
The front side is free.
I am stuck with the side with the screen and the one with the DVD.
I didn't try force, since I don't really want to ruin it.
Any ideas on how to finally get the lid out?

Thanks.

[Steven]

Well, dont know if I can help you too much, as I have the Pavilion ZD8000. The only similarity between are machines is the motherboard. Just curious, are you looking to put a faster CPU in your machine? Beware of borderline cooling systems. Going from a 2.8 to say, a 3.2ghz CPU may be enough to cause some serious cooling issues.

[Highway_Yellow]

No, I am not looking for an upgrade. I can't upgrade anyway. 2.8 is the last from one sort of processors, 3.2 is another sort and they don't match.
I am merely trying to clean up the notebook physically.
Last week I hung around a construction site. By the time I got back all three fans were white and the notebook started overheating. So, my guess is that it's full of cement dust, which I want to take out, in order to fix the overheating problem. Simply vacuuming the fans doesn't do the job - tried it already.
Otherwise the notebook works just fine.

[Steven]

Aah, I see. Friend of mine has a ZV5330 model, fans were plugged up from dust and lint. Spraying compressed air into the fan intake helped a bit, but had to remove fans to really get them good. As for everything else, I can only suggest trying the compressed air. (can get at a few computer stores)
Depending on where you are, i know of a place in whitby (Best-Byte) who sells the cans for about $8. They work very well, much better than a vaccum. But do it outside as the dust tends to make a mess of any room :)

[Highway_Yellow]

For future reference / for whoever has X6000:

In order to open the box, follow the steps:
- Unscrew everything from the bottom lid. Take out the screws.
- Take out battery. Unscrew under battery.
- Take out HDD, DVD, card readers, whatever else is attached to the mainboard and can be taken out.
- Unscrew the 4 visible screen screws.
- Open notebook, and take out the silver lid by the screen (the one with the power button, volume buttons, caps lock and num lock). Start getting it out from right under the screen - set the screen horizontal, in order to easily take out this lid. Watch for a connector under this lid. The Bluetooth antenna is in the screen, so make sure it was disconnected from the board previously.
- Take out the keyboard. Watch for the keyboard connector under the keyboard.
- Unscrew the 4 screen screws now available. Take out the screen.
- Unscrew the 2 screws available under the keyboard.
- Take out the bottom lid (the black one), by opening each of the clams that hold it - one is between smart card reader and hp usb reader, two on the front side, one near the usb by the headphones jack.
- Take out the mainboard.
- Now you have access to the fans and most importantly the heat sink.

In normal functioning, only 1 out of 3 fans should work. If all 3 fans are running, it's either hot, or you'll take out 100g of dust from the heatsink. The latter was my case.
Aside from the incredible amount of dust I found in the heatsink, I didn't have overheating problems.

Finally, put back everything together, and try not to have any parts left, by the time you finish putting it together :)
My timing for this operation was 5 hours, including research.

Ana

[Steven]

Thanks for that write up. Most members don't take the time to explain the solution once they find it out :)
You're right about the fans, my center fan never comes on unless im in a heavy game, and if it's on all the time, it's obviously overheating. I'm glad you figured it out, cause I hate to tell people "yeah go rip open your $2k+ laptop and... oh yeah dont break it!"

[brem]

For those interested in dismantling an HP laptop, A maintenance & service guide (c00291986.pdf) for the ZD8000 etc. is available for download at HP's website & shows (more or less) how to get it apart.

[Highway_Yellow]

ZD8000 is amazingly similar to X6000. Thanks for the information!