Anyone done a Brocade 6610 fan mod?
- Thread starter Dreece
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Nothing is particularly difficult with the mod, it's just time consuming. The results are worth it if you're using the switch in a home situation. I wouldn't recommend modding the power supplies, just replacing the rear fans with the top mounted fans.I don't know. I'm not comfortable at all in doing this whole thing
Buy a part 6610 and cut holes in the case lid.
Buy a unit that is broken and being sold for parts. Then take its case like and put holes in it for fans.
Or just cut holes in your already working unit if you're going that way. No sense in spending that much money just for a lid.
I was thinking that too. The 6610’s have gotten cheap enough it may not be worth worrying about resale as much. You could always get a parts lid later if you ever want to sell it.
Yeah, I'm not really worried about resale value. I can mod the lid if needed. Do we have like a template to follow for the cutting though? I'm not handy with tools so I'll have it cut by a pro or something.
while quieting down a few 7450s - specifically on power supplies - If you leave the tacho wire (blue) disconnected and replace the 40mm PS fan with something else the power supply will report 'ok' but also report the PS fan is not functioning. The power supply will *not* run a switch in this condition - despite the power supply saying 'ok'.
The green LED will also blink in this situation.
If you hook the blue tacho signal up to the noctua green wire - the power supply will report the fan as functioning and will work as expected. I figured this was worth sharing as it means you can modify as many power supplies as you want without having any extra wires running around - leaving the hot swap/plug & play functionality intact.
I've been able to happily keep 3 24 port 7450s under 50C with a single 140mm fan mounted over the main heatsink and the 40mm power supply fan replaced with a silent noctua. 2 fans total. very quiet.
non-modified power supply fans worked for closet setups - a desktop mount necesssitated replacing the power supply fan.
I employed the super cheap HiLetgo 5pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver DC 5V-15V Powered: Amazon.com: Industrial & Scientific signal generators - very carefully dialing in 650/50% with a voltage meter
The green LED will also blink in this situation.
If you hook the blue tacho signal up to the noctua green wire - the power supply will report the fan as functioning and will work as expected. I figured this was worth sharing as it means you can modify as many power supplies as you want without having any extra wires running around - leaving the hot swap/plug & play functionality intact.
I've been able to happily keep 3 24 port 7450s under 50C with a single 140mm fan mounted over the main heatsink and the 40mm power supply fan replaced with a silent noctua. 2 fans total. very quiet.
non-modified power supply fans worked for closet setups - a desktop mount necesssitated replacing the power supply fan.
I employed the super cheap HiLetgo 5pcs NE555 Pulse Frequency Square Wave Rectangular Wave Signal Generator Signal Generator Module Stepper Motor Driver DC 5V-15V Powered: Amazon.com: Industrial & Scientific signal generators - very carefully dialing in 650/50% with a voltage meter
Or if you do want a backup get some plexi glass as this post did:
Right, but they were talking about buying another 6610 to cut up, no sense in that. I prefer Lexan since it doesn't break like plexiglass does...
Following up on my power supply fan post above.
I can also confirm that a noctua wired up to the chassis fan assembly will show a green LED and pass all the health checks and generally work when wired into a fan assembly.
if you want the lowest impact fan mod - just replace the giant deltas with some noctuas and see if that's enough to keep the temps down.
a noctua is a lot 'safer' than a signal generator - but draws more power. In my 3 switch stack I have my primary switch with a noctua and the other two with dual signal generators. That way I'm low power, quiet and have numerous safeties to ensure 2 switches are online to elect a leader.
fan tray color -> noctua / PWM fan color
Blue -> green
yel -> blue
red -> yel
blk -> blk
I can also confirm that a noctua wired up to the chassis fan assembly will show a green LED and pass all the health checks and generally work when wired into a fan assembly.
if you want the lowest impact fan mod - just replace the giant deltas with some noctuas and see if that's enough to keep the temps down.
a noctua is a lot 'safer' than a signal generator - but draws more power. In my 3 switch stack I have my primary switch with a noctua and the other two with dual signal generators. That way I'm low power, quiet and have numerous safeties to ensure 2 switches are online to elect a leader.
fan tray color -> noctua / PWM fan color
Blue -> green
yel -> blue
red -> yel
blk -> blk
My solution (other than not using rev. A power supplies) is to wait until it is booted and run for a little, then I unplug one of the power supplies.
I know that kills redundancy, but the reduced noise and reduced power draw works well for my situation. I didn't end up having to mod my fans.
The BEST mod I've seen replaces the top cover with plexi-glass and a very large fan embedded in the plexi-glass. Very quiet.
I know that kills redundancy, but the reduced noise and reduced power draw works well for my situation. I didn't end up having to mod my fans.
The BEST mod I've seen replaces the top cover with plexi-glass and a very large fan embedded in the plexi-glass. Very quiet.
