Quote from: Rune_Coin on February 17, 2018, 07:12:49 PM

Quote from: Souran on February 14, 2018, 10:26:47 PM

Hello All,

Just wanted to share my funny experience with these cards I purchased around a year ago.

The cards Im talking about are the Gigabyte RX 570 Gaming 4G: https://www.gigabyte.com/Graphics-Card/GV-RX570GAMING-4GD#kf
They are pretty much the worst cards I got for mining, even though I bought them early on for 160$ each, and I got 30 of them.
At first they were great, amazing value for money and ROI, elpida memory, they do 29.5mh/850mh eth/dcr; and 900 h/s on cryptonight.

They worked great for 10 months, and then the fans started failing; these fans can not handle dust at all. They are very poor in cooling; and unless I set the fans at 80% or more, the gpu temps would easily reach 75C.

The funny thing is that half of my cards would have the rear fan failing, either completely stop working, or work at a much slower rpm; to the point that I had to only mine cryptonight due to the lower power requirement for the algorithm compare to dual mining.

So I got this idea..

A week ago, I purchased these fans: https://www.aliexpress.com/item/Brand-Original-Delta-AUB0812VH-pwm-DC12V-0-41A-80mm-computer-cpu-case-axial-cooling-fan/32541022969.html?spm=a2g0s.9042311.0.0.Fy7LDH
And these splitters: https://www.aliexpress.com/item/SATA-Port-to-10-Way-12V-3-4Pin-Computer-CPU-Cooling-Fan-Splitter-Hub-with-PWM/32842778420.html?spm=a2g0s.9042311.0.0.Fy7LDH

Removed the shroud and fans from the gpu, and stuck the new delta fans I got on the heatsink (using some metal wires, and a bit of clamping).
and this is the result
https://image.ibb.co/hSBvY7/IMG_20180213_WA0006.jpg

Currently, out of all the cards I have; Nitro+ Limited Edition, XFX GTS Edition, Nitro+ 570 8GB, and Powercolor Red Dragon golden sample; these cheap elpida cards are my favorite xD

Temps on the gpu are at around 39C under the same conditions, and they consume less power (compared to the original fans, 12v @0.5A, the new ones are 12v @0.41A).

So I lose the warranty, but I've already recovered their cost and much more, and they still run perfectly, so I am very happy Cheesy

Now im thinking to do the same for all my other cards, and probably turn one of the AC units I got off to save on electricity

Thats great idea tbh, have you tough about upgrading your GPUs like getting new ones or ?

There's no point to replace the gpus; as long as they are running, mining and generating profit, then I keep them, and if I got the budget to get more rigs, then I just add to what I got.