If you get them mixed up it won't make proper contact with the GPU processor and thus overheat. Sapphire R9 390 8 GB BIOS (Nitro) VBIOS Info. The other screws with "Black" springs are for the rest of the cowl to tighten it down. Screen tearing started while browsing and other light tasks, games were completely fine except warcraft 3 too light for this card I guess. I bought card second hand like a year ago it was working fine until I got to 16.11.5 driver. In the YouTube to replace the fan, it mentions that there are 4 screws with "Silver" springs on it that is used to screw down the Heat Sink to the GPU processor. Sapphire r9 390 Nitro user here using it on single monitor LG 23MP68VQ. When you reassembled the GPU card did you install all the screws in its proper screw hole and it tighten down snugly? If you didn't then the old Thermal paste is preventing good efficient heat transfer if you applied new thermal paste on top of the dirty Heat sink and GPU processor. When you replaced the fan and reapplied Thermal Paste did you first clean off the old Thermal paste with 90%+ alcohol from both the copper heat sink and GPU processor? The problem you are having with a overheating GPU card is hardware related and not software (Driver) in my opinion. All these tests were performed with Sapphire's Nitro series of AMD 300 cards, specifically using the Sapphire Nitro R9 390 Tri-X and Sapphire Nitro R9 380 Dual-X cards. Sapphire Nitro R9 390 8G D5 Review With all of the focus on AMD’s Fury and its HBM, there isnt much attention being paid to the more affordable Radeon R9 390.
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