Bitcoin Forum

This is what I need:
Small image:
http://www.modlabs.net/uploads/gallery/articles/thumb/21_6850_fan.JPG

Big Image:
http://www.modlabs.net/uploads/gallery/articles/21_6850_fan.JPG (http://www.modlabs.net/uploads/gallery/articles/21_6850_fan.JPG)

Only place I've found them so far is direct from China.
http://www.aliexpress.com/wholesale?SearchText=FD9225U12S&catId=0&manual=y
$28.00 + $28 for shipping.  Crazy!!

Anybody pull their fans off their 5830s to do water cooling?  Make me a reasonable offer? Preferrably in USD but will do BTC.
Thanks!

we need one or two of those as well, i think if we can get an order together we might be able to reduce costs.

28,- for shipping is &%&$&, i pay for a standard shipping from China about 2-3$
http://www.ebay.de/itm/110855041517?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#ht_1697wt_905
So 28$ is absolutely No-Go.

I don't think that's the right fan?  That looks like a reference one.

I have a better solution.  What I did with a 4770 and a 6870 when the fans died, is I took off the plastic shroud (you have to take the whole cooler off) and then reattach the heatsink without the fan, so it's just a big heatsink.  Then you can zip-tie an 80mm or 92mm fan to it, and you'll find the card runs at like 50 degrees now, total upgrade!  And it doesn't cost anything!  

Ha! That's funny because I already removed the shroud for better cooling and to get at the fan (to get the part numbs, etc. )

I'll give that a go If I can find the right size fan laying around here....




Absolutely Wrong Fan.  The pics I sent are identical to the fan I pulled off the card.

hm yeah i know. ^^
I just want to show that shipping from China is not that expensive. ;)

isn't the vibration bad for ur hard drive...? what about this vga cooler (though may take another pci slot..)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835192026 (http://www.newegg.com/Product/Product.aspx?Item=N82E16835192026)

since I have a 5830 here that needed the same treatment, I proceeded to change the fan.  The only 92mm fan I had was an Antec 3-speed, which is allllmost what the 5830 wants but it still got into the 80's so I had to find another fan.. and then I found this tiny little screamin' fan, I think it's like a 2" from a server, and I mounted that on the heatsink array as well and it's doing a great job!  2 fans + an hour of time = problem solved!  I'll post a pic of it as soon as I can.

No, it's not reasonable. I have got a few of these things (Sapphire 5830 & 5850, different fans) here from local market in Beijing, each for ¥50 (~US$8). You can find the same fans in less than half the price in Shenzhen. Just search Taobao. I am current using a water cooling solution that costs only ¥160 for my 5870s, and it works just fine. But I don't think a 5830 worths a water cooling.

Sorry, out of context.  What I was hoping was that someone ELSE had taken THEIR fans off their 5830s to do water cooling, and maybe had those extra fans laying around and wanted to make me a reasonable offer to sell them to me. :)

As far as the local Beijing markets - I'm out of luck there, as I am in the States.  I'm also in an area where the only thing CLOSE to a PC components store is a Best Buy.  And I'm thinking they aren't going to have one of these in stock. ;)

I'll probably try to retrofit someone like mc_lovin is working on... I'll post picks as well when I get something figured out. 

Also... unless I add a 4th card to this rig this suggestion might work: 

have you tried ebay? lots of chinese sellers there sell replacement fans for cheap. i bought a replacement fan for a 6770 for $4 shipped, works great. It wasnt the exact same model fan as what was in there before, but it was the same diameter, depth, fan blades, and 2 pin power connector.

This one is 92mm, but only 15mm deep, not 25mm. also mighting holes might be wrong, i dont know
http://www.ebay.com/itm/New-95mm-ATI-NVIDIA-Video-Card-Cooler-Fan-Replacement-40mm-3Pin-T129215SM-0-25A-/180889835780?pt=US_Video_Card_GPU_Cooling&hash=item2a1ddfd904#ht_1865wt_1163

this one is 92mm diameter and 25mm deep, might be compatible
http://www.ebay.com/itm/New-95mm-ASUS-ATI-NVIDIA-Video-Card-Cooler-Fan-Replacement-40mm-4Pin-T129025SU-/170847175399?pt=US_Video_Card_GPU_Cooling&hash=item27c74902e7#ht_1865wt_1163

guys let me know as i got one dead fan already but i haven't removed the plastic casing of it... but i didn't want to spend like $50 on aftermarket coolers... is it worth it?

I have that exact card with a seized up fan too!

I tried some lithium grease but it didnt help, so I did this:

http://img205.imageshack.us/img205/7898/52729010101967505495090.jpg (http://imageshack.us/photo/my-images/205/52729010101967505495090.jpg/)

I remember reading somewhere on these forums that if you drill a small hole on the face of the fan about half a centimeter offset from the center and insert oil in there (wd-40 will work, but not as long. I have 3-in-1 oil and works great, wont evaporate), it'll release the friction and the fan will spin like brand new.

I did it for this card and it worked great. Before it would spin maybe only 60rpm. Now it spins nice n fast, and even wooshes at higher RPM.
http://www.ebay.com/itm/221020808125

Sry guys I can't get original sapphire fans atm  :-[

They seem to have disappeared from the market along with ok priced heatsink+fan combos.

What you're suggesting is basically to relubricate the fan motor. You can actually pull the fan hub (basically it's a giant magnet) from the stationary part. Just insert 2 or 3 screwdrivers and pry. That's what I did. In my case I think I had some coils burnt out (no idea why....), which is why the grease didn't help.

Thats why i buy org AMD Design Cards, spare parts are easy to get.

Yeah.... no. I tried this for THREE fans, and I obliterated all of them (The plastic part behind the fan would always break, rendering it impossible to remount the fan ever again)

Shrugs. You must be prying wrong. The parts I pried apart were pretty solid and were in no danger of breaking.

If one of you can post the part number of the fan I'll see if I can dig them up for you, I replaced a couple a few months back and they ended up being ~8$ each, but could have been cheaper since I paid a premium to a middleman.

They simply do nt want to come off. I tried inserting metal rods in 3 equidistant spots between the mounting plastic and the PCB (these 2 things are linked together) so I have a means to apply equal force when prying the fan itself away from the electrical part and the spindle inside without tearing up my hands from the mounting plastic.

I even tried prying between the pcb and the fan itself, and it threatens to break the solder points from the copper coil inside the fan, or break the PCB itself.

Maybe you are lucky and have "compatible" fans that are meant to come apart. All I know is my fans won't ever come apart like you describe intact. I even tried one of the youtube videos where a guy takes apart a blower-type vga fan in the way that you described, but it's just LOCKED in place, as if there are 1-way teeth inside that will let you insert the fan, but not take it apart.

edit: I was right. I destroyed another fan to the point that I could use pliers to get a firm grip of the pcb-like area and finally seperate the fan from the electrical part with a TREMENDOUS amount of force. The metal rod inside the fan had a cut/depressed area and the electrical part had these teeth (which I broke after successfully prying apart) that sits in this depressed area and normally prevents one from prying the fan away from the electical area.

I took some pictures of what mine looks like and how I took it apart (http://imageshack.us/g/841/img20120530210302.jpg/)

In the fourth picture, it's kind of hard to see but I have 2 screwdrivers inserted parallel to each other. I then slid one of them around and when I did that it popped the motor shaft out of the commutator.

https://bitcointalk.org/index.php?topic=70043.0

"First D" FD9225U12S
0.48 Amp, 12v. 

Here's a sketched up photo, sorry for the blurry-iphone-closeup-picture-crappiness.  And the toddler level red-crayon markup.

http://dl.dropbox.com/u/32375118/Fan_FD9225U12s-ScaledDown.JPG

No worries, thanks for posting the pic.  I haven't seen many 4 legged ones in my travels.  I'll do some digging and get back to you.

Edit:  Could you measure the hole spacing (in mm)?

I think it's pretty rare to find someone that would watercool a 5830, as that is a huge waste. And even then, I think people usually keep the stock air coolers around just for backup in case they want to revert back to air cooling or in case something is wrong with the loop.

Annoying, right? The 4 mounting posts?  I'll try to find a ruler at the office tomorrow and I'll repost here with measurements.

Not a huge issue right now, as I've got a regular old 80mm case fan zip tied to it and underclocked (& undervolted) it inside in a case, and it's doing... alright.  190 ish Mhs at 69C.

The picture above has been edited with measurements for the 4 mounting holes.  40mm along the outside edge; 57 through the middle. (Measuring from middle of hole to middle of hole).

I would like to purchase two of these fans, also.

I've yet to find the four post unit(s) with those dimensions.  Still looking.

I've done this, but it only works for about a week then you have to relube it again, its a pain in the ass.  Easier to just pop the cover off and ziptie a 80mm fan onto it.