I'm looking for the most powerful 5v laptop "blower" style fan available

The Long and Short of it:
My requirements are
-5v blower/internal laptop fan
-Greater than ".5 A/500mA or 2.5W"(Note they communicate the same thing at 5v)
-4pin PWM supporting fan so that I can have have the laptop motherboard control both fans(I plan on powering the second fan using the 5v feed from the Sata ODD connector which will most likely need to be removed to fit in an MXM-B card)


Shooting for:
-5W or greater/1A or greater(Still 5v)
-10 cfm or greater if possible

The Why
Like AlienHack I will be embarking on a major modification to my Z book laptop and I will be adding aftermarket heat pipes to aftermarket heat sinks that I will be mounting in the DVD drive bay. Before I start this I want to get the most powerful fan for the job specifically a 4pin fan that supports PWM so I would appreciate any input from those of you who are familiar with the fans in your own laptops in terms of amps or the watts.

Reposting AlienHack's Mod

A brother from China performed a mod of his HP 8560w that only officially supports MXM-A to take a MXM-B 970m and he added the cooling required to handle the far greater TDP.

I intend to emulate and improve upon that mod by using a 15" Zbook G1 with either a 1060 Mobile, 1070 Mobile or hopefully a Radeon Vega MXM intended for eDP and LVDS laptops

Pics of the Chinese mod can be found here http://forum.notebookreview.com/thr...spec-video-cards.768347/page-13#post-10463916

Original Link http://forum.51nb.com/forum.php?mod=viewthread&tid=1691822&highlight=8560W+970M

 

The ZBook 17" is the best fan I know that would fit inside the ODD (there are better, but taller). It's more than 10CFM (I think that it's more than 13 (the Alienware M17x-R2's CPU fan is 13CFM, the 8740w stock fan is better than it and the ZBook 17 tops that as well)), 5V, still 2.5W.

 

Thanks triturbo I'll put the zbook 17" fan on my radar. I had seen a fan that was at .6A in my ebay research though I hadn't given any thought into whether it was too tall for the ODD drive.

 

I came across someone looking to sell parts from a laptop and noticed a larger than normal fan within it so i sought out the fan in question and discovered it's 12v!!!! and .45A http://www.ebay.com/itm/NEW-For-MSI-GT70-GT780-GX660-MS-16F2-MS-16F3-GT660-GT680-GT683-Displace-CPU-Fan/351926639709?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=2&asc=41395&meid=b27ead0c503f452694e5bc3ae7f7ca80&pid=100005&rk=5&rkt=6&sd=181708984724 I didn't even know laptop manufacturers ever used 12v fans in side their laptops as everything else I encountered is solidly 5V. Now I'm wondering is there anyway to tap 12v from an HP Z book?

 

Nice find!

And yes; use a buck converter and sacrifice two usb ports or hook up to the battery connector (bit higher voltage, but close enough and more cfm's). Use this second trick for my desktop gpu fan. Not this exact one, but similar; 10W+/45 cfm. Problem is that you have no fan control using either method for the fan you've linked to; it is 3-pin, meaning it is voltage-, rather than pwm-controlled (intermittent on-off).

My archaic system (as every Clevo) is a 3-pin by design, but your ZBook uses 4-pin/pwm style, so what you need is simply a 12V+4-pin fan for this to work. Thing is that most 12V fans are too tall (had to dremel the base and add taller rubber feet), but this MSI version appears to have the regular, low-height of most laptop fans, so it'd be perfect were it not for the 3-pin style. Luckily, almost every fan can do both voltage and pwm, but it is the system they're being dropped in which makes them get 3-pin or 4-pin wires soldered to them. With a bit of luck you'll find that there's a fourth solder pad on the fan's pcb marked 'pwm'; solder the extra wire to it and you may actually have 12V plus fan control.

Depending on how the ZBook's pwm functions, you may also need to splice in a relay or other type of switch between the battery->fan wires. Voltage on the battery (and usb?) remains active even after shutting down the laptop. There's no pwm signal anymore, though, so if the signal is default-off then there's no problem, but if it is controlled by interrupt then shutting down the system would mean 100% fan speed (hence the relay).

Btw, with 12V at your disposal you also have the possibility to drop in a 3.5"/10TB drive. Only need to solder the 12V wires to the corresponding SATA pins and make a cut-out in the bottom panel. Not sure it'll like the battery's 14.4V, but could always use another converter and set it to 12V exactly.

 

That is a lot of information to digest, thx for everything including the link to the buck converter.

 

While performing a tear down on an Optiplex 3040 I found the white whale, the laptop style 1A 5v Blower Fan ksb0705hb-a can't find reliable info on the CFMs but it says 10.55 CFM Min so I ordered one even though I mostly settled on "Genuine Dell OEM Alienware M17x Processor CPU Cooling Fan BATA1015R5H U012M"

 

Hi
I was trying to find If there'a somewhere out there Acers Aeroclades fan to buy, which lead me to some Sunon fans EG75070s1 on the Aliexpress and some others. I don't think that any of ones is actual metal blades fan but it hard to say. Anyway, I found some others ones too which are used on different aspire laptops: Sunon mg60150v1. Off course I couldn't find CFM ratings of those fans but I found that there were used also in M6700 and m4700. When I had that I found other brand fans used in those laptops. And guess what, big AVC BATA0815R5H is 5V 13CFM, smaller one from M6700 video card AVC BATA0716R5H is not shabby either 9.7CFM. And little bit different version of AVC BATA0815R5H from M4700 have 12.5CFM.
Maybe someone will find those information useful .

 

subbing for reference.

Wanting ot add a fan into my Alienware 17 and this looks like some good info