GPU Vibration

DSTM

Active Member
Jul 26, 2009
Sydney Australia
Thread starter #1
I have in this machine a AMD Radeon 7800 series twin fan GPU.
Works brilliant but very slight vibration from one blade missing off one of the fans. (Not saying how that happened)
Never found the blade. Maybe dismantle the card I may still find it.
If not, I was thinking of super glueing a counter weight to stop the vibration.
Any better ideas?
 

Digerati

Active Member
Apr 27, 2015
Nebraska
#2
I have in this machine a AMD Radeon 7800 series twin fan GPU.
Works brilliant but very slight vibration from one blade missing off one of the fans. (Not saying how that happened)
Never found the blade. Maybe dismantle the card I may still find it.
If not, I was thinking of super glueing a counter weight to stop the vibration.
Any better ideas?
Find the missing blade and superglue it back in place. It's got to be in there someplace and you sure don't want it getting jammed in another fan.

The problem is, the fan will still be out of balance (assuming the plastic used is the type superglue works with - superglue does not work on a lot of plastics). Even if you use a tiny dab and get it perfectly aligned, it will still add some weight on that side. And depending on the quality of the fan from the start, that may still be enough to continue the increasing wear on the bearings. So ultimately, you need to replace the fan.

That said, since you imply you've been using this graphics card since the blade broke, uneven wear of the bearings (or the channel/track they run in - or both) has already begun. That cannot be reversed so the rate of uneven wear has already begun too.

I had the misfortune of letting a knuckle get in the way of a spinning 200mm Antec "Bigboy" fan, knocking a blade off and sending a pound of flesh flying. To increase the life of the broken fan I purposely broke off the blade on the opposite side. However, this only works on fans with an even number of blades. I am sure it helped the blades broke right at the hub so it evened out, weight wise, pretty easily. But that was really a Mickey Mouse temporary solution until the replacement was delivered. I note also this fan with now two broken blades started spinning extremely fast. I had to slow it down with its controller - not sure you could do that with a GPU cooler.
 

Digerati

Active Member
Apr 27, 2015
Nebraska
#6
Gorilla glue is good stuff. Be sure to read the label as it requires special application techniques (it is activated by water) and it expands as it cures. You also have to clamp it as it takes a while to set and longer to cure which might make it challenge for a curved piece of plastic.

11 blade fans??? :blink:
 

DSTM

Active Member
Jul 26, 2009
Sydney Australia
Thread starter #7
Yes 11 blade fans. I got the information off this fan and googled.
They are the fans in this GPU exactly.
4.30am here. Will worry about it bit later.
Thanks for the help so far.
 
Admin #8
Gorilla glue is good stuff. Be sure to read the label as it requires special application techniques (it is activated by water) and it expands as it cures. You also have to clamp it as it takes a while to set and longer to cure which might make it challenge for a curved piece of plastic.

11 blade fans??? :blink:
I have never had to activate gorilla glue with water.
It may be a different type than what I use.
Here is the kind that I always have on hand.
I turned the package over so that you can see the instructions.

WP_20160714_001.jpg



WP_20160714_002.jpg
 

DSTM

Active Member
Jul 26, 2009
Sydney Australia
Thread starter #9
I am going to Email the supplier here and get some of that Gorilla Super Glue,Cindy,
The super glue in the tube we buy here only lasts for about 4 weeks and all goes rock hard in the tube as you can't seal the tube properly. (bad design)
Doesn't work on all surfaces they say. Great for sticking your fingers together if your not careful.LOL

$_35.JPG
 

DSTM

Active Member
Jul 26, 2009
Sydney Australia
Thread starter #10
I pulled the GPU completely apart and blew everything out. Cannot find the blade anywhere.
Even removed the PSU in case it was stuck behind there.
I removed both fans and wiring. Added new heatsink paste.

Then I got an idea.

I found 2 X 90mm case fans in my stash of spares and secured these directly over the openings on the Heatsink plastic cover. These 2 fans have 75mm blade width, same as the removed fans.
I hooked up these two case fans directly to the Motherboard (PWR)
Have had it running now for an hour and can't get the GPU temp over 29c.
Thanks all for your interest and advice.
Still going to get some of that Gorilla Super Glue. I use super glue often.

sp1.png
 

Bill M.

Active Member
Jan 20, 2016
South Carolina
#11
That was a creative idea, no cash outlay and seems to be pretty efficient at 29 C.

BTW I found Gorilla glue to be great stuff. I used it to re-glue joints on dinning room chairs. Worked like a charm.
 

Digerati

Active Member
Apr 27, 2015
Nebraska
#12
@ Cindy - that is not real "Gorilla Glue" but instead just Gorilla branded "super glue" (AKA: cyanoacrylate) - same as "Krazy Glue and is found under many brands.

Genuine - or should I say the "Original" Gorilla Glue is, as noted here, is a water activated polyurethane formula and as noted in the directions, require you to "lightly dampen" one surface with water, apply Gorilla Glue to the dry surface, then clamp the two surfaces together and allow 24 hours to cure.
 

Digerati

Active Member
Apr 27, 2015
Nebraska
#14
Sorry, but "gorilla style" is just their style of "marketing fluff". If you read the label in your second screenshot in post #8 above, it clearly says "cyanoacrylate" (also known as ethyl cyanoacrylate) and that is the generic name for plain old "super glue" and Elmers Krazy Glue. If you note, the Safety Data Sheets for "Elmers Krazy Glue" and Gorilla Super Glue both state they contain the exact same thing: "Ethyl Cyanoacrylate Adhesive" and both have the exact same "CAS" product identifier number of 7085-85-0. It's all the same stuff except with "marketable", memorable, pronounceable names in prettier packaging.
 
Top Bottom