Here's the discussion thread and point - motherboard link is still active. I'm using it as are a few others. $73.00 plus ship.Which motherboard/s allows the use of DDR3 memory?
So you're saying, clock for clock, say 2678 v3 vs 2680 v3, which have the same frequencies I believe, the 2678 v3 would actually perform worse than the 2680 v3 if both are using DDR4?The chips were created for customers during the DDR4 shortage. Generally the hybrid design has poorer performance than a specific variant.
DDR3 and DDR4 pins are different. How they connect to the socket and how they connect to the IMC are factors. ARK shows the socket pinout. Without access to the chip design or X-rays, we can only check experimentally.
I use this motherboard with DDR3:
View attachment 13999
There's a DDR4 version, X99-D8 :
View attachment 13998
If someone has it we can compare benchmarks.
Aside: when looking at Total Cost of Ownership (TCO) = Cost, Setup/Validation, Power => if going DDR4, modern chips have significant power savings and a smaller number of systems for the same work load.
Thanks. Seriously, a no name China brand X99 board will work?
Thanks for the confirmation, I'm planning to try this on a dual socket X10 Supermicro with 2x 2678, I don't have a chip reader so I'm worried about bricking the BIOS. I'll admit that I've never tried to perform any custom BIOS edits before I've found this guide here which appears to be quite detailed, is there anything obvious that is missing that one should be aware of while attempting this?I'm using a 2U active dynatron something or other and tops out at like 75C running cinebench r15 sitting on an open air bench (potentially better with airflow from a midplane).
As a follow up, yes, you can flash it over ipmi. It doesn't seem to care about accepting hacked bios or genuine bios. Yes, you can insert the DXE into the firmware image. I've got it where I don't need anything on a special EFI partition to have it load correctly.
Hi VManThanks for the confirmation, I'm planning to try this on a dual socket X10 Supermicro with 2x 2678, I don't have a chip reader so I'm worried about bricking the BIOS. I'll admit that I've never tried to perform any custom BIOS edits before I've found this guide here which appears to be quite detailed, is there anything obvious that is missing that one should be aware of while attempting this?
Do the C3/C6 states need to be disabled for system stability as per the guide?
Xeon E5-2600 V3 Turbo Boost Unlock - Miyconst
I still see ~$320 for the 2680v4 and ~$1000 for the 2699v4. At these price, isn't it worth upgrading to Epyc?For v4 CPUs 2680v4 and 2699v4 are good deals right now. Market pricing cut in half over the past 3-4 weeks.
Dual 2699 v4 production cpu. That's always have been my dream...lol. each cpu performance is the same as one TR 1950X. This is however tempered by the fact that one 7930X cpu is still significantly faster for less than the price of two 2699 v4 still. Unfortunately you are limited to udimm with TRyeah, I had unscientifically noticed that older xeons prices dropped off a cliff after they were... a lot... of years old. and it seemed like the v4 versions still had another year left until they hit the cliff.