first , thank for reply !! so do you mean , a usb powered usb hub ( not ac power one ) , modify the usb power cable which power the usb hub , together with DC voltage selector ??

This post has been edited by blueyan: Jan 15 2009, 11:56 PM

No...!! Do not plug in to any device once you modified it to non standard voltage...!! Be it PC, notebook or USB Drive or whatever USB devices. Those devices will be destroyed with this higher voltage...! This Zalman do not have complicated chip inside thus you can crank it at higher voltage....but other USB devices do have chips inside and these chips are sensitive to voltage.

Leave it alone without connecting it to something else.

Read back my previous posting. I have edited for a clearer explanation.

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Added on January 16, 2009, 12:20 amYou have edited your question....

It is simple. By default, you use your notebook USB power to power-up your Zalman. So, If you power your Zalman using your notebook USB, you can insert your USB thumb drive to other Zalman USB port, and your notebook will detect it. No problem.

By my case, I'am using direct DC from Multi DC Voltage Adaptor via modified USB wire. So, overall voltage is now non-standard USB. It's not safe for other USB devices. Even if you plugged-in, you won't have any connection to you notebook...! Unless you wan't to recharge something.....??!?

That's why I said, cover the other USB port on Zalman once you mod it....

This post has been edited by gjoey: Jan 16 2009, 12:20 AM

oh , then just zalman cooler only ? to confirm about this , please refer to the image .

is it the cable 1 is modify with the multi voltage adaptor and cable 2 connect to usb hub.... after it is done , then zalman cooler are ready to hook with it ?

You are not using Zalman cooler are you..? Since Zalman cooler use only type-A USB connector....

If you refering to the picture, it is a type-A and mini USB.

Never mind....my mod wasn't specified only for Zalman. You can try on your's. If your's is like the picture, than yes...No.1 is modified (cut) to make a join to power cable from voltage adaptor. No. 2 is confusing....you are calling it 'connect to USB hub'? If Zalman, the USB ports is a hub since there were 2 ports that you can use simultaneously. Do you mean USB port on your cooler? If that, than yes. If it is this kind of hub :



than no. It's suppose to connect directly to your cooler USB port.

P/S : You can mod else than Zalman but, does yours have 'Fan Speed Selector'?

This post has been edited by gjoey: Jan 16 2009, 01:16 AM

A multi DC voltage selector will give you a selection of speeds above or below standard 5v for USB
You can select 3V, 4.5V, 6V, 7.5V, 9V and 12V.

For more clearer, here is my picture showing what I've done :



1. The other USB port that I've cover to protect accidental plug-in other USB device.
2. The joining from USB cable to Multi DC Voltage Selector.

Good luck...

P/S : Ignore my wire mess in the background.... Too many things in a small place....

oh , i got it already , thank gjoey =D

so this voltage mod can work on infinite? i jz bought it yesterday, quite dissapointed on the air flowing out. and the temp is same like not using the cooler. i used 4 botle cap to raise my laptop before.. currently using acer aspire 4530

It can be done.....if you can take a risk of frying your fan/cooler.....

You should know that cranking electronics device over its' specified voltage would surely risking burning it out..! So try it with your own risk.

For me, I've done it for months.....running well, no problem so far. I'am only crank it to full speed when gaming. Other than that, I just let the fan running at lower speed (Zalman do have fan speed dial wheel).

i wonder if cooler master got spare for the fan, hehe. anyone knows how to open CM infinite to clean d fan?

yeah , i am pissed by the heating issues...Zalman is quite well ... but not in Malaysia which the weather is usually HOT~~~~ and i got no AC in my study own....thinking to mod the Zalman power , and adding more powerful fans inside the Zalman to draw more air inside....

i plan to change the fans of my cm notepal..but trying to avoid from using DC adapter. is there any powerful 5V fan (compare to notepal fan laa..) that i can use??

passive cooler TaiChi S anyone see it anywhere?

http://www.thermaltake.com/product_info.as...hi+S&ov=n&ovid=

might want to get one soon before i go overseas...

Guys...for ur opinion
after how many hour u will start using ur cooler?

depending on ur laptop model..some can generate high heat even when u just open it. i use cq40 with amd proc n ati gc, had the heat problem n really need cooler pad from the start..

anyway i use cm notepal but im not satisfied with its cooling performance..planning to change its fan but cant find 70mm fan (80mm cant fit)

err...the fan for standard amd athlon cpu cooler is 70mm or 80mm?

70mm. y dont u mod the volt like what gjoey has done to its zalman, sure work. really want to try d usb mod, but the adapter here in jb is quite expensive. even zalman nc1000 also price rm185. can buy zalman nc2000 here

anyone know dell 1520 bottom left ventilation is sucking air or blowing air?

I'm start using cooler when I'm starting my lappie. If not, Will forget if that time I'm playing games

Coolermaster NotePal Infinite is the best for me, One huge fan cooling it.. comes with 4 USB ports.

I turn it one automactically one my laptop is one.... really cooling like aircon.