There are various boards possible in 5820. Generally, pre-Cascade lake, and Cascade lake compatible.
I got 06JWJY motherboard, and I would say that event with Support of Cascade lake, I would not recommend upgrading it. It got serious problems, making Xeon-W class CPU always staying in throttle, which is a permanent performance drop from around -15%, down to full -50% (there is no definite method to measure the performance drop in Current Throttle mode, since that is a low-level cycle NOP throttling method, not well registered by monitoring soft).
And yours 0X8DXD seems not compatible with Cascade Lake. However, I've seen opinion that visually all 5820 boards are similar, so 06JWJY is just a minor patch of an older board.
Probably, that may be the reason to its awful performance. So in conclusion, 5820 is a very bad product that should be avoided. Definitely, not for upgrading.
I have the motherboard, 0R23KR, and it is compatible with Kaby and Cascade lake line processors (W-21xx and W-22xx), however that have TDP of up to 140W. The revision change to A01 did not change the TDP capacity to above 140W. Then, i have full compatibility with W-21XX and only Xeons-W 2235, 2225 and 2223 from Cascade Lake series...
If it's working and stable (with its original processor), I would not mess with it.
It's not like this is an After-Market retail motherboard (that comes without a processor, but supports many).
I suggest you use the computer (to do your real work) until it's really not good enough any more. Then, buy (or build) a new one. Aim for mid-to-high-end again.
Andy812
2 Intern
•
202 Posts
2
October 3rd, 2021 18:00
There are various boards possible in 5820. Generally, pre-Cascade lake, and Cascade lake compatible.
I got 06JWJY motherboard, and I would say that event with Support of Cascade lake, I would not recommend upgrading it. It got serious problems, making Xeon-W class CPU always staying in throttle, which is a permanent performance drop from around -15%, down to full -50% (there is no definite method to measure the performance drop in Current Throttle mode, since that is a low-level cycle NOP throttling method, not well registered by monitoring soft).
https://www.dell.com/community/Precision-Fixed-Workstations/Precision-5820-Xeon-W-2245-Current-EDP-limit-throttling/td-p/7791600/page/4
And yours 0X8DXD seems not compatible with Cascade Lake. However, I've seen opinion that visually all 5820 boards are similar, so 06JWJY is just a minor patch of an older board.
Probably, that may be the reason to its awful performance. So in conclusion, 5820 is a very bad product that should be avoided. Definitely, not for upgrading.
Flavius Aetius
1 Rookie
•
92 Posts
0
October 3rd, 2021 18:00
I have the motherboard, 0R23KR, and it is compatible with Kaby and Cascade lake line processors (W-21xx and W-22xx), however that have TDP of up to 140W.
The revision change to A01 did not change the TDP capacity to above 140W. Then, i have full compatibility with W-21XX and only Xeons-W 2235, 2225 and 2223 from Cascade Lake series...
Tesla1856
8 Wizard
•
17.4K Posts
0
October 3rd, 2021 19:00
I agree with @Andy812 ,
If it's working and stable (with its original processor), I would not mess with it.
It's not like this is an After-Market retail motherboard (that comes without a processor, but supports many).
I suggest you use the computer (to do your real work) until it's really not good enough any more. Then, buy (or build) a new one. Aim for mid-to-high-end again.
SoNic 67
1 Rookie
•
18 Posts
0
January 25th, 2023 11:00
Dell Precision 5820 Tower Owner's Manual | Dell US