I added a 2nd fan to my dell optiplex 755.
Dell optiplex 755 usff rear fan failure.
1 on front 1 at he power supply in back and 1 on the hard drive.
Bay direct 12v 0 36a 4wire 4 32w 808020mm replacement rear case fan for dell optiplex 790 990 sff compatible part number pva080f12h 725y7.
The usff rear fan is on the hard drive caddy.
Broken link has been removed from this post by dell remove the computer cover see removing the computer cover.
Follow the procedures in before you begin.
4 0 out of 5 stars 2.
K650t dell optiplex 780 usff case cooling fan.
Take the side cover off and you can see 2 of the fans.
Dell optiplex 745 755 hard drive blower fan hk120 hk253.
4 0 out of 5 stars 14.
The wiring is different.
3 6 out of 5.
In fact it listed the cpu fa.
Cpu fan failure optiplex 755 the fan is not standard.
I bought the machine from my supplier and am just now installing windows 10 here s whats going on.
Dell fan failure fix bypass how to duration.
Replacing a hard drive fan.
Optiplex 755 rear fan failure genuine dell ny290 hard drive blower fan and nh645 hard drive caddy for the optiplex 740 745 755 760 small form factor sff systems compatible part numbers.
Dell fan failure fix bypass fix fan failure on dell computer.
Dell optiplex 745 755 760 780 380 sff cooling fan p8402 m556n hu540 m8788.
Adding rear back exhaust fan to dell optiplex 755 wwjoshdew s 2nd channel.
So i did a dell diagnostic f5 and it said the motherboard fan was bad.
Optiplex 755 rear fan failure my 755 has 3 fans.
Plugging standard into 755 or the other way round can burn up the fan tach signal on the motherboard.