EVGATech_LeeM
support for 32GB DIMMs

rusTORK

EVGATech_LeeM
support for 32GB DIMMs

A-die?

a213m
Despite the fact most of X299 boards will work with Cascade Lake-X CPUs, I think buying a new board would be a better solution, to take advantage of updated features, like hardware Spectre and Meltdown fixes, or extra 4 PCI-e lanes. Original LGA2066 were designed to utilize 44 PCI-e lanes at most.
 
A lot of original X299 boards were rushed and not fully ready for 18 core CPUs. Intel rushed the announcement to be ahead of AMD; if you remember, Skylake-X CPU were announced in batches, with 10 core CPU being the top model in the initial wave of release (7900X), while 12-18 core models were announced later, when the market was already full of X299 boards, which couldn't handle 18 core models due to insufficient VRM design.  Asus and Asrock shortly after readied updated versions of some of their X299 based boards.
 
Now, when the motherboard makers already know what to expect from Intel, the new boards from well known manufacturers should be fully ready to power 165W TDP chips. (Asus's lower end models of Cascade Lake-X boards have 12 phase VRM systems, while their original high end LGA2066 boards only had 8 phases.) And most importantly, new boards will fully utilize all 48 PCI-e lanes new CPUs have to offer.

GGTV-JonTiN_EE can the X299 Dark use all the lanes of these new 10***x CPU's with a changes in the BIOS or is the 44 lane limit hard baked into the chipset hardware?

GGTV-Jon

DEJ915

GGTV-JonTiN_EE can the X299 Dark use all the lanes of these new 10***x CPU's with a changes in the BIOS or is the 44 lane limit hard baked into the chipset hardware?

PCIE lane wiring is via traces on motherboard to the CPU socket so you cannot just support more lanes on a board, it has to be redesigned completely.
 
This is unfortunate side effect of everything being on CPU now, it is not like old CPU where moving to new motherboard gives DDR3/PCIE2.0 instead of DDR2/PCIE1.0, etc.

I was referring to how some things get disabled depending on what CPU is used and what devices are used = where there is lane sharing between U.2 and M.2 or PCIe sockets and M.2 devices. With the increased lanes in the CPU is it possible to unlock them (ie being able to use both U.2 and M.2 ports at the same time) or is it a limitation to what the current chipset on the board can do. That would not be a trace issue.
Asking for all 16x PCIe sockets on the board to be 16 lanes would be an trace issue, as some are hardwired for 8 lanes

jollydet

GGTV-Jon

DEJ915

GGTV-JonTiN_EE can the X299 Dark use all the lanes of these new 10***x CPU's with a changes in the BIOS or is the 44 lane limit hard baked into the chipset hardware?

PCIE lane wiring is via traces on motherboard to the CPU socket so you cannot just support more lanes on a board, it has to be redesigned completely.
 
This is unfortunate side effect of everything being on CPU now, it is not like old CPU where moving to new motherboard gives DDR3/PCIE2.0 instead of DDR2/PCIE1.0, etc.

I was referring to how some things get disabled depending on what CPU is used and what devices are used = where there is lane sharing between U.2 and M.2 or PCIe sockets and M.2 devices. With the increased lanes in the CPU is it possible to unlock them (ie being able to use both U.2 and M.2 ports at the same time) or is it a limitation to what the current chipset on the board can do. That would not be a trace issue.
Asking for all 16x PCIe sockets on the board to be 16 lanes would be an trace issue, as some are hardwired for 8 lanes

 
I have the same question.

EVGATech_LeeM
Sorry guys.  I know what you're thinking, but it won't work that way.