My Auxiliary Power Supply for my GPU's failed. Here's my fix.

my 450w aux psu mounted in optical bay started flacking out few weeks ago. worked fine 4 years driving dual 680's. upgraded dual 1080 ti's while , brought little psu it's knees. under low loads fine stack bunch of (cuda) renders in queue , when ti's singing sweet song @ 99% load started shutting cmp down gpu crashes.

bought backup 450w psu (cd-rom bay type) couple months ago since first 1 had failed 1080 ti's , there no more psu's of type available didn't want replace failed psu cheap chineese psu identicle.

do, do. looked @ optical bay , had in there @ point failed 450w psu , blu-ray rom drive had failed couple years ago , haven't missed bit.

needed new solution end problem good. looking "bulletproof" solution.

my solution:

took measurements of optical bay , found nice standard atx psu fit. bought evga supernova 750w g2, 80+ gold psu. tied it's 120v input macs psu turns on when hit power button. may over-kill i'm work , 1080 ti's humming along under full load no issues. nice saturday afternoon project.

 

sweet, say, necessity mother of invention, or doppers inventive, whichever prefer.

don't see psu lead power bong, narrows down.

 

Forums Macs Desktops Mac Pro

• iPhone
• Mac OS & System Software
• iPad
• Apple Watch
• Notebooks
• iTunes
• Apple ID
• iCloud
• Desktop Computers
• Apple Music
• Professional Applications
• iPod
• iWork
• Apple TV
• iLife
• Wireless