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Toshiba satellite disassembly, overclocking & full modification.

THIS IS A WORK IN PROGRESS, I HAVE JUST PUBLISHED IT SO YOU CAN FOLLOW THE PROJECT AND TO GET SOME SUGGESTIONS.

So how much power can you get from a laptop for under 1K without compromising portability? Lets find out. (bearing in mind something simmilar from alienware is just over 2K)

(This is still under construction, next update due friday)

So what do we have to start with?
The laptop is a Toshiba Satellite A660-11M, with the core i7-720QM processor @ 1.6Ghz, 4Gb RAM @ 1066Mhz, 500Gb harddrive, and Nvidia GeForce GT330M @ 135Mhz, with 1Gb RAM. Not a bad deal for £750.

Although this is fairly fast for a laptop, there is much more to be got out of it:

8Gb RAM @ 1333Mhz  (£70 per 4Gb stick)
OC CPU from 1.6 to at least 2.8, possibly 3.2
Fit water or heat-pipe cooling, as the stock cooling is not sufficient for the original speed (hits 82 degrees C)
Try to OC graphics card a bit.
Fit SSD.  (60Gb Patriot inferno, 275Mb/s write speed, £100)
Construct custom cooling pad to allow constant use & house external HDD and batteries.

Yes, i know the photos go in the wrong order.
 
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Step 1: Disassembly

Picture of Disassembly
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The disassembly guide is not ccurrently available, so here is the only guide available so far.

Tools needed:
Pot to put the screws in.
Small phillips screwdriver.
Small flat bladed screwdriver.
Weak magnet.
Bright pen/pencil/marker.
Earthed work area.

Step 2: Turn it over

The photos say it all.

Overall, a particularly easy laptop to disassemble.

Next time: Removing the MB, Identifying the PLL, sizing up the cooling system, and why does the fan fail?

The fan appears to be ineffective as the intake vent on the base is blocked by what appears to be some flash from the moulding.

Feel free to leave any comments/suggestions.

Step 3: Identifying the PLL

The PLL or Phase Locked Loop provides the timing signals to the processor, but unfortunately it is virtually always locked at a fixed speed unless
a) your PC is fairly old
b) your PC is a top-end gaming machine
c) your PC is a custom build

Seeing as the A660 satisfies none of these conditions, we have to venture into the unknown territories of the hardware, where neither the bios or windows can impede your freedom to "fix" the clock speed.

The PLL is usually a long thin medium sized chip located near the chipset, and often has a timing crystal next to it (a rectangular silver package with round corners with some numbers stamped on the top.) See the photos for examples.


Step 4: Turboboost

While turboboost is a great little toy, it is particularly annoying to the overclocker for a number of reasons:

Core speed never stays the same- if you set the base speed to the top limit, you can get the most power under full load, but as soon as the load drops, the multiplier increases, and it crashes. However, setting the boost speed to the top limit will keep it stable, but the speed under load will not be as high as it could be. Disabling turbobost allows the processor to run at full power all of the time.

Multipliers.- disabling turboboost sets the multiplier to the lowest core speed. This is good as it allows finer control of core frequency when fiddling with the pins of the PLL.

Turboboostcan apparently be disabled in the bios.

Step 5: Power supply

The laptop already comes with a pretty hefty 6.3A brick attached, and eats through the 48WH battery in under 1hour, and the processor is rated at 45W TDP. So doubling the core frequency will draw a huge amount of power.

The power supply is going to need watercooling.

I don't know how much the power supply can take, or what would happen if it drew too much current

Step 6: Case modification.

Although this is not nearly as difficult to get apart as some laptops, it is kind of awkward to have to disassemble the whole thing to get at the processor and cooling system. So an important step is to cut a door in the bottom similar to the ones to access the HDD & RAM.

Also needed is an improvement in the venting, as the fan appears to have no intake (The circle on the bottom isn't actually a vent, it's just some indentations). I expect to have to replace a large amount of the underside with mesh salvaged from the deceased acer.

Does anyone have any suggestions for how to make a clean cut through the base & how to form bulges in the lids to accept larger components?

One of the main constraints on the case is the fact that it must remain looking original, so no huge cooling ducts.

Step 7: Cooling options

This the problem with overclocking a laptop. The stock cooling is insufficient for running the original configuration at 100% load, so overclocking, and the inevitable overvolting of the core will demand a better solution.

So what needs cooling?
CPU
GPU
Chipset
RAM
Possibly some of the power supply components if I overvolt the processor.

The options:
Air cooling: not enough room to fit a big enough fan, a heatsink would have to be heavily modified or custom made to even fit, and it would be incredibly noisy.

Heatpipes:
They look like one of the best options, although I don't know how well they would react to being routed around all the tight corners.

Liquid nitrogen:
Fairly simple and effective to setup for short runs, but highly impractical for normal use.

Peltier effect coolers:
While the junction temperature goes down, it just moves even more heat about 5mm away from where it came from, while eating the battery and necessitating an even bigger cooler.

Water/liquid cooling:
Probably the best option, allowing easy movement of heat away from many different components, including ram, with more options to the placement of the radiator(s), although a pump would need to be fitted.

Step 8: Building the cooling system

I have considdered the use of silver for parts of the cooling loop, but at over £500 per kilo, it is a little out of budget, seeing as a tube of top quality thermal grease would be a better investment, seeing as copper is pretty close in terms of thermal conductivity.

I currently have my eye on a 6" x 1' bit of solid copper bar from which to machine most of the system, although aluminium sheet seems a more practical material for the top half of the waterblocks.

Looking at all the stuff that needs cooling, this will need a pretty epic pump to get it all working. most of the watercooling pumps for desktops seem to be about 30-40 watts @ 12v, so a brushless motor out of a VCR should give enough power to haul all that water around, while being thin enough to fit. (Actually, while thin enough to fit, it is over 3" in diameter with a very large magnet. I have extracteded another brushless motor out of a DVD drive, which should have a reasonable amount of power, providing the circuit id kept simple.

Step 9: The radiator

At the moment, I hope to be able to fit the radiator where the old heatsink is, although I expect to have to sacrifice the rarely used CD drive to make a pop-out radiator for increased airflow. I have considered making the lid of the laptop thicker and putting a large flat radiator up there (with the back of the lid lifting off to expose it), although there may be some issues with heat between the screen and radiator, and with airflow.

Step 10: New thermal compound

zack2474 years ago
this seems like quite the endeavor, i had always thought that leds, better speakers and quieter fans were laptop mods, this totally disproves that theory.

i hope you finish this, it looks like it would be pretty epic!
and heres just a word of thought, for that water coouling radiator, im sure that if you made it the size of the old heatsink+fan, that would be able to disperse a lot of heat, and maybe instead of having no seakers you could move them up inotnthe top half, if they are too big,get some thin ones from a old laptop, i know acers have pretty thin speakers.

even slapping in a 1.9GHz cpu could improve performance, and witht hat you could also get a few more GHz out of overclocking.
The Skinnerz (author)  zack2474 years ago
Thanks for the feedback!

The current heatsink design i'm working on is a rather large slab of copper or aluminium, so the passive cooling alone would take away a lot of the heat.

As for the speakers, the right hand one should be able to stay.

I do actually have a set of speakers out of an acer, and they look pretty small. I might put the bass speaker in anyway to give it a bit of a kick.

I'm going to keep the current i7 in it, as the 8 threads are useful for running multiple heavy programs, such as playing a game while rendering video.

Are you converting this to a desktop or just boosting the laptop with better architecture?

you are one brave dude for trying to overclock a laptop!
i really hope it works out!
The Skinnerz (author)  zack2474 years ago
I hope it works too.

The overclock will be the final part of the project, as the cooling needs to be fixed for the standard speed.
ive been reading this again, and i was thinking about that radiator you were talking about.

first off im gonna say that the fan does get intake, ts most likely from by the cover and the edge of the keyboard, which is still pretty unsatisfactory.

that radiator could be put in the cd drive bay, and maybe you coul use the original fan to blow cool aire over the radiator and out the edge of the laptop, and then use the original fan's spot for the water pump.
assuming the water pump is small enough to fit there, you could even keep the speakers where they are.

i suggest figuring out some form of cooling for the ram too, it can get pretty hot in performance heavy situations.

if you know of any really small blower fans, i would be interested in those, my gateway might not run as hot since i installed 64-bit (which is strange) but i plan to upgrade and fans are a must in my case.
The Skinnerz (author)  zack2474 years ago
I've got a second HDD in the CD bay now, so the rad can't go there, but there looks like there is enough room for a small one where the old heatsink is.

The overclocking bit is on hold at the moment, until the datasheets for the clock generator are released, as it is on-board so can't even be done with a pin mod.

The smallest fans I've seen are about 30-40mm, so still a little large for most laptops.
gdart3 years ago
Also. , how can i overclock the cpu.
As the bios is locked.
PetiaW gdart1 month ago

You would need to mod the bios which is not for the amateur as you could "brick" your laptop, rendering it useless and unbootable. The motherboard controls everything so you must control the motherboard. The bios needs to be flashed, while doing this you must be careful as if done wrong will cause your computer also to be bricked, it's not just the software that needs to be gotten right. Go to https://www.bios-mods.com/ and post to get your bios modded or search for it if it is already done.

gdart3 years ago
Hi i have the exact same laptop , and have been noticing the coolingis rubbish , is there anyway i can improve this as an amateur.

PetiaW gdart1 month ago

Apply a nice thermal paste such as Artic Silver. My laptop used to be hot and dropped about 5 Celsius after replacing the thermal paste. The one provided by the manufacture is terrible. Fans in laptops are bad in general but un-upgradable sadly. Get a desktop (tower) if you want true performance.

plunardi gdart3 years ago
also i have this laptop, and i have the exactly same problem... any suggestion?
PetiaW plunardi1 month ago

Apply a nice thermal paste such as Artic Silver. My laptop used to be hot and dropped about 5 Celsius after replacing the thermal paste. The one provided by the manufacture is terrible. Fans in laptops are bad in general but un-upgradable sadly. Get a desktop (tower) if you want true performance.

plunardi3 years ago
Water cooling is not always the best option... If you have to transport the laptop what will you do? By the what if the you meant that the pc it's gonna always stay at your home you can do it (sorry for my bad english but i'm italian)
bhvm4 years ago
Excellent Idea, No one has ventured into Modding and Custom fab cooling for Laptops. I'm tuned, Please keep it up!
We can discuss and learn a lot from each other;Feel free to drop in.
eddles7774 years ago
with the spare pci slot, that would have been insane to add a second gpu XD but itll be impossible cus there arent any sold unless you got one from a d.o.a laptop.
The Skinnerz (author)  eddles7774 years ago
I had considered that, but at this point there are no mini pci graphics cards available, and I don't really need any more from the GPU, overclocking it is just a technical exercise (It works suprisingly well already, and can handle anything except crysis 2).

Should have an update soon, as the new parts are being delivered this week, and I have some free time to start on designing the new cooling.