Cheers, I picked up a bare bones T7910 and decided to go with the dual E5-2697 V4 CPU's for $350 each

These model CPU's support up to 2400MHz memory, so got 128GB (8x16GB) of memory @ 2400MHz

Also grabbed a couple of liquid cooled heatsinks on eBay, for some reason the T7910 case didn't come with a side vented panel so had to get one of these as well to help with the CPU ventilation.

I currently have a T7610 and with higher CPU speeds, memory FSB, SAS3 controller 12Gbps, 

Cost to upgrade around $2000 

The 2697 is much better bang for the buck -  I don't think going for the 2699s were worth it.  I have the same 128 Gb of DDR4 2400.  Not sure that there's even that much improvement between the 2133 and the 2400.  I put in an nvme PCI-E card in with a Samsung Evo 970.  I think that's pretty fast.  I didn't get the Dell quad ultraspeed, although if you wanted you could do that and do a RAID 10  with four nvme SSDs!

How much did you pay for the liquid coolers?  And how in the world did you find a vented panel!  That's some wizardry.  Good job!

Thanks!

I don't do RAID just installed a 400GB SAS SSD drive for my OS and 3 x16TB SAS drives for all my movies and TV Shows I use with Plex on my computer.

I paid $300 for the liquid cooling heatsinks.

Some of the T7910's I have been looking at did have the vented side panel and don't know why the one I got didn't so went to NVY9X Genuine OEM Dell Precision T7910 Tower Vented Black Side Panel | eBay and brought one.

BTW, I'm selling a 2x 2680 CPU T7910 with 128 Gb of memory and two 500Gb SSDs, plus a 1Tb HDD, and a GTX 780 Ti graphics card. It works pretty well!  On ebay - do a search.

I'd like to upgrade my (2015) T7910 with its twin E5-2603 v3  to an E5-2680 v4.

Do you think that would need the liquid cooled heat sinks and the vented side panel?

And do you think this would be a good move?

Thanks

Can you safely upgrade a Dell T7910 from a dual E5-2690 v3 to E5-2699 v4?

Thanks