Question Dell T5500 Riser Board Active heat sink (W715F) in a T3500

[BHX5743]

I have Dell T3500 Workstation (9KPNV Motherboard) with a Dell UO16F Heatsink. Would a W715F Heatsink work if the screw dimensions were the same as the U016F? And also does anyone know if the screw dimensions are the same?

 

[william p]

The only difference is the T3500 heatsink has a corner cut out where some wires run through there. Reroute the wires and it's the same then.
But the T5500 has a PWM fan and there is not an extra fan header to control it.
Here is a mod we came up with at TPU for an added fan to the U016F. The fan is thermistor controlled and speeds up when the air out of the heatsink gets warm. It's working for a user in India where he has +100*F. ambient air.
https://datasheet.octopart.com/M34789-33-Nidec-datasheet-643872.pdf
Dynatron G17 fits also with alittle swapping of the hardware. Look around in here.
https://www.techpowerup.com/forums/threads/throttlestop-overclocking-desktop-pcs.235975/page-25
If you're having cooling issues be sure all the plastic RAM shroud, and HDD tray are in place. They form a duct from the .9A. CPU fan through the heatsink. An added fan is getting the job done for the workstation overclockers.
Here's a non OC workstation thread also.
https://www.techpowerup.com/forums/threads/dell-workstation-owners-club.243124/page-43#post-4176404

 

[BHX5743]

There is a 5 pin at the top of the MB next to the sata ports that are identical to the two fan headers that are in use by the dual front case fan. Is it a fan header or something else? Note: I am looking through the threads you posted now, thanks.

 

[BHX5743]

I'm not overclocking and am running a W3565 130TDP, 1050 ti. It will touch 90c (HWmonitor) while playing Black Desert Online on low setting.

I'm not finding your mod you mentioned. I've seen some other mods attaching a fan to the heatsinks with zip ties. Im contemplating doing this, especially after learning from you that there are fans that will monitor and control their own fan speed. Is the Nidec my best bet with doing
this?

 

[william p]

That is an HDD fan header but it will vary the speed based on the HDD sensor. That cooler without the fan should work for you with all the shrouds in place.
Here is a listing for the 1.8A 12V. thermistor controlled fan. just run 12 to it and use it as pull type heatsink fan.
https://www.aliexpress.com/item/1956098195.html?spm=a2g0o.cart.0.0.777d3c00hEYR2a
You can pull the part# and shop around.
This is working for a guy in India with 100*F ambient. Dell used this as a cpu fan in older Pentium 4 sysyems. It moves a lot of air at idle speed.