Heat-Cooler Mods

[malch]

Pics: http://s873.photobucket.com/user/epilam ... k.jpg.html

I took the IHS [heat spreader] off the ATI chip.
Then I placed a straight edge across the ATI and the north and south bridge.
Using a .040 copper plate, I could cover all three chips with copper shims.
.oo5 for the north bridge, .016 for the ATI, and .017 for the south bridge. [last pic]

I ran the T43p with the ATI shimmed only to measure the temps running memtest 86+.
The cpu/ATI = 36c
Northbridge = 62c
Southbridge= 52c
Measured with a IR gun.

[malch]

Used the iso to "no 2010". It worked.
Almost had a heart attack when the message " bios update failed use the crisis disk"

[malch]

Heatsink bridge done. Tried to take pics but they were meaningless.
Cooled the NB and SB 38c
cpu and gpu still 36c
Copper too thick for the wireless card to fit.

[ajkula66]

While I understand the whole IR gun business, most of us measure temperatures in a different manner...

Could you possibly install TPFC and share the temp readings from there?

[malch]

CPU 45 APS 45 PCM 38 GPU 44 BAT 37 UBT 0

BAT2 31 UBT2 0 PCI 45 BUS 42 VREG 50

This was with IBM_ECW and without the palm rest installed.Battery and plugged in the wall. OAT 27c

With TPFC without the palm rest installed and the dvd movie running over 1/2 hour:Battery and plugged in the wall.

CPU 45
APS 44
CRD 37
GPU 43
NO5 42
BAT 35
BUS 44
PCI 41
PWR 49

[malch]

Ok I swapped fans. Put a M10 in. Ran out of AS5 switched to Thermalright white stuff.
Then I ran OCCT burner for 5 minutes. Here are the TPFC results and no slow downs or screen gliiches or anything.

Manual fan "7" palm rest screwed down. Some of the numbers are lower- prolly because all the covers were
screwed on. Dothan 780 running. 2GB memory 320GB SATA HD WIN XP sp3 original

CPU 74
APS 48
CRD 35
GPU 64
NO5 36
BAT 31
BUS 55
PCI 47
PWR 53

[ajkula66]

OS = ???

[malch]

I would like to setup Win98 next. Waiting for a cheap HD. XP now

[ajkula66]

OK, when you get a chance could you please post the idle temps on a freshly booted machine?

You'll have driver issues with W98, but good luck regardless.

[malch]

What fan setting?

[ajkula66]

What fan setting?

Smart.

[malch]

CPU 54,61
APS 47,55
CRD 36,44
GPU 53,61
NO5 34,41
BAT 30,30
BUS 47,55
PCI 43,52
PWR 49,56

Smart on- fan not running
Second set of numbers is after 1/2 hour of "Smart" with fan at 3110 RPM.
I put it back to manual 6. It's happy there. cpu around 43-45
So what do you think? I took your advice and bought and installed a M10 fan.

[ajkula66]

CPU 54
APS 47
CRD 36
GPU 53
NO5 34
BAT 30
BUS 47
PCI 43
PWR 49

Smart on- fan not running

Nice temps. Not much - if any - improvement on what I'm used to seeing with no mods, though...

[malch]

There is a large difference to me.
The direct heat readings on the north and south bridge go from the 60s to the high 30s, no matter what the M/B sensors
indicate. I trust direct IR readings more. The disadvantage is the heat from the Nb and Sb is applied to the GPU and CPU on the fan heatsink.
Overall it is a lousy solution though. On a good desktop expect to find a 12c delta between the OAT and the CPU at idle.
My machine is running a delta of 22c.

[ajkula66]

On a good desktop expect to find a 12c delta between the OAT and the CPU at idle.
My machine is running a delta of 22c.

I really don't believe that you can compare a desktop and a laptop in a meaningful way when it comes to stuff like this.

That being said, going back to the original cooling system and running NHC to undervolt the CPU might get you some relief. You'd also be able to play with GPU settings - which are the most important heat generator - along the way.

Good luck.

[malch]

Thanks for your thoughts. I'm staying with the new heatsink, Took me 20 hours of fiddly exacting work to make it.
Nice fan, nice cpu, fast little thing. cool running
My aim is to have a laptop that does Win98 [dos] to Win7.

[ajkula66]

I hear you.

Your second set of temps is a bit on the high-end in my book.

Whatever you do, just keep the darn thing on 24/7/365...and enjoy it thoroughly.

[Orclas]

Thanks for your thoughts. I'm staying with the new heatsink, Took me 20 hours of fiddly exacting work to make it.
Nice fan, nice cpu, fast little thing. cool running

Aye, but undervolting the CPU would on the other hand make up for some of the additional heat which you're offloading to the heatsink, perhaps making it all more efficient and even more worth the efforts you made (which is the kind of mix of creativivity, stubbornness and hand craft which impress me ).

I'm running the CPU of my T40 undervolted by some 20%, all totally stable (and producing significantly less heat for the same clock cycles).

[malch]

Good idea.

[malch]

I am posting this on my T43P with Win98/Me.
So far I cant find any V3200 drivers for Win98.
No sound of course.

[malch]

"Aye, but undervolting the CPU would on the other hand make up for some of the additional heat which you're offloading to the heatsink, perhaps making it all more efficient "
idle for 24 hours with TCPA and RMclock.
cpu = 38c gpu= 40c

[Orclas]

"Aye, but undervolting the CPU would on the other hand make up for some of the additional heat which you're offloading to the heatsink, perhaps making it all more efficient "
idle for 24 hours with TCPA and RMclock.
cpu = 38c gpu= 40c

Looks good.

What were the temps before (can't quite figure out which of all the temps previously posted to compare with)?

[malch]

The temps before the mod "with cpu speed variable from x6 to full speed" = cpu 54c, gpu 54c
After the mod "with cpu at full speed all the time" = cpu 45c, gpu43c