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Topic: Noob question on GPU (Read 1209 times)

newbie
Activity: 41
Merit: 0
December 21, 2013, 02:55:58 PM
#6
Wood won't ignite until a temp much higher than the card would have already fried at.  It's safe to use but it won't allow for airflow.

What works well - go to walmart or target and get the wire dishracks - they're coated with rubber - just make sure not to nick them.

A wire dish rack or other type coated rack is a great idea, I hadn't thought of that.  Cool
In reference to wood: Although I'm sure it is unlikely that a hunk of wood would ignite, I always side on the paranoid since I have had small brief fires in computers from components failing.

DrG
legendary
Activity: 2086
Merit: 1035
December 21, 2013, 02:48:42 AM
#5
Wood won't ignite until a temp much higher than the card would have already fried at.  It's safe to use but it won't allow for airflow.

What works well - go to walmart or target and get the wire dishracks - they're coated with rubber - just make sure not to nick them.
newbie
Activity: 41
Merit: 0
December 19, 2013, 04:02:33 PM
#4
Ah I was thinking of thin flat strip of wood. Thanks for the warning. Then wood and metal are both ruled out. I would love to build a crate rig like the one you pointed me to (thanks) but I just don't have the time now + my need to be operational is more urgent. Once I am operational, I want to take my time and build a proper rig.

If we are looking at rod shapes, can I use think plastic pipes used in plumbing? I can figure out a way to secure the rods to the case, what about the gpu to the pipes. Should I do that too?

Basically any plastic pipe, rod, or what-have-you that can be secured and will support the weight of the GPUs would work.

Zip ties or Velcro straps can secure the ends of the GPU at the bracket on one end (you can make a nut and bolt anchor using the bracket fastening holes if it suits your fancy).

Often times there is a small hole in the PCB that can be used on the other end but be careful as you don't want to stress the PCB. Depending on the cooling system the GPU has there may be other viable anchor points on the non-bracket end. You can also gently tie down the PCIE cables to the support and the wire tension will provide stability as well.

Of course this setup is not earthquake proof but should be jostle safe. I have two 7970s in a crate doing it this way.




full member
Activity: 196
Merit: 100
December 19, 2013, 02:45:23 PM
#3
Ah I was thinking of thin flat strip of wood. Thanks for the warning. Then wood and metal are both ruled out. I would love to build a crate rig like the one you pointed me to (thanks) but I just don't have the time now + my need to be operational is more urgent. Once I am operational, I want to take my time and build a proper rig.

If we are looking at rod shapes, can I use think plastic pipes used in plumbing? I can figure out a way to secure the rods to the case, what about the gpu to the pipes. Should I do that too?


newbie
Activity: 41
Merit: 0
December 19, 2013, 01:51:57 PM
#2
I am getting riser cables so that I dont run my gpus on the motherboard.  I am using a cooler master case, a cheaper one than this image but this will serve nicely to explain.

I have placed the case in a sleeping position and not standing as it is shown here. I now have 12 inch risers for my 2 gpus (R9 280X). Until I build something custom to hold the gpus, I was thinking of placing a plank on the case and placing the gpus flat with the fans blowing upwards. Will that cause problems or can the gpus be placed like that.


If by 'plank' you are indicating a wood plank then I would not recommended that.

If 'plank' means a non-conductive, non-flammable substance in plank or rod shape then that should not be a problem. 3/4" PVC works nicely when secured so it does not roll. The GPUs are placed perpendicular to the support plank/rod.

http://i1273.photobucket.com/albums/y416/stumbling-orangutan/Fullscreencapture12192013104539AMbmp_zps6c325b49.jpg

Black box is case. Purple lines are support. Red boxes are GPUs.

If you have a plastic crate around, open air is my preference. (e.g. https://bitcointalksearch.org/topic/litecoin-build-for-noobs-3x-7950s-18-mhs-in-a-10-crate-case-163306)




full member
Activity: 196
Merit: 100
December 19, 2013, 12:59:35 PM
#1
I am getting riser cables so that I dont run my gpus on the motherboard.  I am using a cooler master case, a cheaper one than this image but this will serve nicely to explain.

I have placed the case in a sleeping position and not standing as it is shown here. I now have 12 inch risers for my 2 gpus (R9 280X). Until I build something custom to hold the gpus, I was thinking of placing a plank on the case and placing the gpus flat with the fans blowing upwards. Will that cause problems or can the gpus be placed like that.
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