YS Tech 70mm TMD

Elcs

Diamond Member
Apr 27, 2002
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I have ploughed through a lot of research on this fan in an attempt to see its viability for a replacement to the fan on my Volcano 7+. I dont have the funds to change the heatsink/fan but i can change the fan.

Through my reasearch, i found that this fan is 70mm by 70mm at the edge and 74mm by 74mm in the middle. This presents me with a problem as i cant ditch the heatsink and the shroud on the Volcano 7+ doesnt look like it will take the 74mm in the middle.

I was wondering if i could remove the housing of the fan carefully to leave a 70mm fan or some *VERY* simple modification could be made to the shroud to make this fan fit.

Im not a confident modder and im already unsure about removing my Volcano 7+'s fan but Im very sure that it is annoying me.
 

bgeh

Platinum Member
Nov 16, 2001
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i own a volcano 7+ myself and its pretty quiet at low setting
my 80 mm fans are louder than it
 

Elcs

Diamond Member
Apr 27, 2002
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Maybe Im being a bit picky now but if Im going to throw out my Tt 80mm Smart Fans for something quieter, I might as well see what i can do to make my 7+ a tad quieter or more effective.

From what I can assume, the Heatsink is a nice piece of work and i couldnt afford to replace it.
 

Elcs

Diamond Member
Apr 27, 2002
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Im really anxious to hear any stories about these fans. I heard a real nasty post about them from another forum I read.

"The YS tech TMD fans were recalled a few months because they were spinning too fast. They would spin up and overheat, eventually stating to melt. They are redesigning them right now to fix the problems, and hopefully they will release them next year."

It has me concerned. Has anyone had 1st hand experience with these fans? Has anyone heard of this problem?

Its driving me insane. I still cant find one in the UK and even Europe is proving hard to buy from. I reckon that it will cost me about £60 or roughly $90 USD to buy and ship + import taxes. Might be worth it but its still a lot of cash.... I might wait and possibly order a Thoroughbred Rev B if I have the cash. Means my dad can change his 1 ghz T'Bird for an AXP 1800+ :)
 

Blain

Lifer
Oct 9, 1999
23,643
3
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I've got one on a PIV HS that I'm selling.

"$90 USD to buy and ship + import taxes" - Yes, it is a nice quiet fan with less dead area than other fans. But No, it's not worth that kind of price.
Just find another one and don't get swept away by the "GeeWizz" factor of the TMD fans. ;)
 

Elcs

Diamond Member
Apr 27, 2002
6,278
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$90 is for the TMD fan and 2 YS Tech 80mm Adjustables (which are also unavailable in the UK)

If i could find the TMD, the Adjustables and a nice and cheap Rev B T'Bred on one site in the US, id be interested.

Im busy looking at importing from Europe, i might be exepmt from VAT if i buy in Europe, but ill need to do some more research.



If anyone could find the 70mm TMD 5600rpm (or 5800, i cant remember which), the 80mm YS Tech Adjustables and a nice Thoroughbred, preferably a highly o/c'able version or the 1800+ (which im using a 0.18 version of), Id be grateful.
 

vailr

Diamond Member
Oct 9, 1999
5,365
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91
This US source (Pennsylvania) has both versions of the 70mm TMD fan, 4500RPM & 5800RPM, $4.99 each.
Also list the 80mm YS Tech adjustable for $7.99.
http://www.nexfan.com/43/cat43.htm?157
They do not ship internationally, however.
Might place a "Want to Buy" notice in the For Sale/Trade forum.
 

OulOat

Diamond Member
Aug 8, 2002
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Originally posted by: Elcs
I have ploughed through a lot of research on this fan in an attempt to see its viability for a replacement to the fan on my Volcano 7+. I dont have the funds to change the heatsink/fan but i can change the fan.

Through my reasearch, i found that this fan is 70mm by 70mm at the edge and 74mm by 74mm in the middle. This presents me with a problem as i cant ditch the heatsink and the shroud on the Volcano 7+ doesnt look like it will take the 74mm in the middle.

I was wondering if i could remove the housing of the fan carefully to leave a 70mm fan or some *VERY* simple modification could be made to the shroud to make this fan fit.

Im not a confident modder and im already unsure about removing my Volcano 7+'s fan but Im very sure that it is annoying me.

What simple modification? You can't remove the fan from it's housing and expect it to work, since that is so special about the fan, it's motor is in it's housing.
 

bgeh

Platinum Member
Nov 16, 2001
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i think elcs means
this
the metal enclosure (or housing) that holds both the heatsink and the fan
 

Elcs

Diamond Member
Apr 27, 2002
6,278
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Originally posted by: bgeh
i think elcs means
this
the metal enclosure (or housing) that holds both the heatsink and the fan

Thank you bgeh. I think you have the idea.

OulOat - look at the 3D view of the Volcano 7+ and click disassemble. You will see that the program will remove the fan. As far as I can tell, changing the fan is a simple case of removing the bolts out of the top, checking for glue and fitting the new fan in.

If someone can wisely inform me to the contrary, I would be grateful.
 

bgeh

Platinum Member
Nov 16, 2001
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Originally posted by: Elcs
Originally posted by: bgeh
i think elcs means
this
the metal enclosure (or housing) that holds both the heatsink and the fan

Thank you bgeh. I think you have the idea.

OulOat - look at the 3D view of the Volcano 7+ and click disassemble. You will see that the program will remove the fan. As far as I can tell, changing the fan is a simple case of removing the bolts out of the top, checking for glue and fitting the new fan in.

If someone can wisely inform me to the contrary, I would be grateful.

i actually am a proud owner of a volcano 7+:D
 

Elcs

Diamond Member
Apr 27, 2002
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Originally posted by: bgeh
i actually am a proud owner of a volcano 7+:D

Im sure I've already posted on one of your posts about the V7+

I love the Heatsink, Im just in the process of trying to get better fans for my whole case. CPU fan cant be left lonely :)
 

ChefJoe

Platinum Member
Jan 5, 2002
2,506
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The metal shroud just looks like elongated fins that are attached at the base, wrap around to screw into the 80 mm fan at the top. If that's the case, you should be able to use some pliers to bend those outer pieces and hold in the 70 mm fan (remember that it's 10 mm thinner so that'll translate into it folding in 10 mm) and at least attach one corner of the fan to each side, perhaps you can drill holes and get it to line up better, but it should work. I'd keep a few plastic washers around just in case you need some spacers.

Another way it could be done: I don't have the HS myself, but the pic posted has a full metal grill which looks structural enough to be used to hold the 70/74 mm fan down), leave the grill there and get longer machine bolts and a few washers to use as spacers, hold your new fan down with that.
 

OulOat

Diamond Member
Aug 8, 2002
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If you want to fit the fan in, you will have to cut the middle part of the shroud out. Exactly how big, I dunno. But it's probably big enough that the sides of the shroud would be weaken greatly. Then you would have a problem with vibrations caused by the fan, you might end up with more noise than with the current fan.
 

Elcs

Diamond Member
Apr 27, 2002
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Originally posted by: OulOat
If you want to fit the fan in, you will have to cut the middle part of the shroud out. Exactly how big, I dunno. But it's probably big enough that the sides of the shroud would be weaken greatly. Then you would have a problem with vibrations caused by the fan, you might end up with more noise than with the current fan.

According to Thermaltake, the V7+ is 70x72. The YS Tech TMD is 74x74x15.

From what I can see, one side is fine. The 3D view shows the shroud is open at 2 sides opposite of each other, presumably for changing the fan. The other 2 sides of the shroud are either 70 or 72mm apart.

My own measurements show that the V7+'s 70mm fan already in is 25mm deep whereas the TMD is 15mm. This seems to me like i might have some room to bend the housing out slightly instead of cutting.
 

OulOat

Diamond Member
Aug 8, 2002
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If you are talking about the kind of bending like just forcing the fan in and screwing the shroud back onto the heatsink, that might cause lots of vibration since the shroud isn't firmly against the heatsink anymore. It all depends on how rigid the sides are. You can make actual bends in the metal shroud, but I dunno how well the bends would take it. Every time I've bended metal the bends get pretty weak and would snap after a while. The first method is probably the best, you could probably find something to put in the spaces to dampen the vibrations.
 

sodcha0s

Golden Member
Jan 7, 2001
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I have the TMD fan on a Dr.Thermal HS, and it indeed took some modification. It appears to me that OulOat's idea is the best solution for you. Cut a slot on each side the same thickness as the fan, just enough so the rounded sides of the fan will poke through. Remove the original fan and put the metal piece on the HS and make a mark where the top of the fins are and start your cut there, that way the TMD fan will be flat against the fins. If you do it properly i doubt there would be any vibration, just make the slot small at first and see how it fits, you want the fan to fit as tight as possible. A dremel tool would be ideal for this type of cut.
 

Elcs

Diamond Member
Apr 27, 2002
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Im at college now so Ill see if i catch your drift.

Are you saying that the fan should be arranged in the shroud like this?
(|=======|)
| air space|
| ||||||||||| |

with the fan sitting as high as possible and a gap between the fan and heatsink

or like this?

| air space |
(|=======|)
| ||||||||||| |

with the fan sitting right on top of the heatsink?

Apologies for bad drawing.

(|======|) implies the fan

and

| |||||||||| | implies the heatsink fins
 

Elcs

Diamond Member
Apr 27, 2002
6,278
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BTW - I found that I can get the TMD fan and 2 Adjustable YS Techs from Holomaxx for $44.85 plus any import taxes for the UK.... presumably VAT which would mean ~$53

Not tooo bad - the estimate on the Delivery came through and as $15 where I expected $40 before. It totals about £36 for me - which averages out as £12 per fan - about the same per fan as a Tt Smartfan II over here.

1-2 weeks with Christmas soon. I can live with the noise but if i order, it better arrive before about Jan 4th. Ive got to mod and setup my comp fully before College starts again.
 

OulOat

Diamond Member
Aug 8, 2002
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I'm guessing you have already set the fan on it's lowest speed, but have you tried 7 volting it? That should quiet it further, if you can get it to start. But it will save you the money and the extra permanent modifications. I think sodcha0s means the second way, the way with the airspace on top.
 

Elcs

Diamond Member
Apr 27, 2002
6,278
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I havent tried 7 volting it but I dont want to lose the cooling power. I found a nice pic of the V7+ from the side (2nd pic down) so you can see how the shroud wraps around the fan.

Im feeling a bit dubious because this could be a cool mod but I can see many ways to screw this up quite badly.

[Edit: following on from the line above.... Are there any other options as far as 70mm fans go?]