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How to disassemble a reference 5870's fan.

post #1 of 6
Thread Starter 
This is the red fan inside the shroud in the reference version of the radeon hd 5870. The fans model is FD9238H12S. Manufactured 5/24/2010.
I've got the whole card completely disassembled to replace thermal paste with new high end paste and to fix a horrible fan rattle that cropped up today. I just can't figure out how to disassemble the fan. I've removed both stickers carefully so they can be reused but both ends don't reveal a way to disassemble the bearings for oiling.
There is a round brass piece that is flush with the plastic on the base, and just plastic behind the sticker on the fan itself. I can't see any pins or clips to dislodge, I'm completely stumped. Buying a new cooling system/replacement is not an option right now, and its probably a month or two past warrenty.
post #2 of 6
i dunno if i would use oil, and definitely not graphite for the fan. best id recommend is cleaning it as is, making sure no hair is wrapped around fan, and hoping for the best. definitely say get a custom cooler.
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P50
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CPUGraphicsRAMHard Drive
Intel Core i7-6700HQ NVIDIA Quadro M1000M 4GB Gskill 32gb 4x8gb DDR4 2300mhz Samsung 850 PRO - 1TB SSD m2 
Hard DriveOptical DriveOSOS
Seagate 2TB w/ 128MB Cache (ST2000LM007) Pioneer External USB-C Blu-Ray Burner Fedora 25 Win 10 LTSB 
MonitorMonitorMonitorPower
15.6" 1920x1080 IPS BenQ GL2460HM 24" LED BenQ GL2460HM 24" LED Lenovo 170w Power adapter 
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MX-580 or Razor bluetooth something or other Docking station 40A50230US 
CPUMotherboardRAMHard Drive
i7 3770k BIOSTAR TH67+ 32gb 4x8 Corsair Vengence 1600 1x 256gb m2 
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6x Seagate 2.5" 3tb > ~8.5tb raid 10 OpenSuse Seasonic G 550w Silverstone SG11B 
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post #3 of 6
Thread Starter 
well i've got the whole thing disassembled, the fan is separate from the heatsink so I know there is no hair wrapped around it, etc. I'm just wanting to disassemble the fan itself to clean out inside of it and possibly relubricate the bearings. As I said replacing the cooling system isn't an option for me right now, I just want this thing to work until I can afford to replace it with a 6xxx series card.
img20110512151004.jpg

img20110512150954.jpg
Edited by FattyXP - 5/12/11 at 1:18pm
post #4 of 6
Thread Starter 
Any ideas, I'm still stumped on taking this fan apart. I've looked all over google and amd forums, nothing at all on how to do this.
Shifting of the case to allow for different fan orientation does nothing.
Edited by FattyXP - 5/12/11 at 1:28pm
post #5 of 6
The easy solution would be to find another fan, preferably from a dead 4870.
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Pwnz0r Radley IV
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post #6 of 6
Thread Starter 
Turns out it was still under warranty and I've already gotten the replacement in the mail, horray next day shipping!
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