Your board only supports bifurcation in the general sense that most consumer boards do. not really in the way I've described in earlier posts. it only bifurcates in one way and it's not user configurable. the bifurcation happens automatically based on how you populate the slots. you can't plug multiple devices into a single slot unless you use the PCIe switching cards.
most consumer boards (yours included) recently have two physical x16 slots. but the CPU only has 16 lanes. the "top" x16 slot (closest to the CPU) will be electrically wired for all 16 lanes. the secondary x16 slot will usually only be wired for x8 lanes even though it's x16 physically. this is how your board is, and it's easy to see that the second slot only has pins in half (x8) of the x16 slot.
so if you have only one GPU in the top x16 slot, it will run with all 16 lanes of bandwidth.
however if you add a GPU (or other PCIe device) to the second x16 slot, the board will auto bifurcate that first slot to x8 and use the other x8 lanes for the second slot.
the third x16 PCIe slot on your board is run through the X470 chipset and is only PCIe 2.0 x4 electrically.
this is a very common layout for both Intel and AMD consumer boards.
Thanks for that information, I do like to know exactly how things work so I can decide what to connect where. I'll stick to the multiplexers, since I've never had a problem with single lane GPU limiting processing speed. I use Einstein and MW on boinc, and Folding at Home.
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
One of the biggest common misconceptions is touching your hand to the computer case before doing anything within the case to prevent an electrical shock. The point not clearly made is that they must touch a clear metal portion of the case (not a painted surface or a plastic piece) while the power supply's power cord is still plugged in to a grounded outlet. Since most people will at least follow some directions, like turning off the PSU and then unplugging it, this procedure is irrelevant.
I never unplug. I just turn off the switch on the back of the PSU so the standby voltage is off, or components might get damaged if something shorts when I plug something in a bit squint. I have actually seen a computer power up while someone added a PCI card. He must have shorted something to cause a power-on command. I also always use a shiny bit of metal. Black paint isn't a conductor! Not that I've bothered recently, because modern stuff seems pretty tough. I think I'll be more careful with anything expensive though, especially if it's not under warranty!
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
I just added a small wire to my computer case attaching it back to my UPS case. I was resetting the computer every time I walked through the living room and touched the case and drew a static spark. That spark was discharging through the motherboard and power supply and rebooting the system instantly.
There was enough resistance between the cpu case and the UPS case that the static discharge went through the mainboard instead of through the power supply cable grounds in the UPS power cable and the PC cable back to the UPS.
The grounding wire solved the static discharge reboots.
I guess the problem is the paint on the case. The PSU will be well grounded, but since it and the computer case have paint on them, they probably don't connect well. Were you feeling the spark? Probably due to your carpet and sock/slippers. What's the humidity in your house? Mine is 50-90%, I don't get static.
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
as with almost all server boards. the VRM cooling is anemic since they expect this board to be used in a server chassis with high power fans.
this board is also only designed for CPUs up to 105W TDP. overclocking in any form for a 16-core chip will be out of the question. an overclocked 3950X/5950X can easily pull 150-175W. you'll pretty much have to run it at stock, or even underclocked/undervolted to keep things happy.
keep that in mind for any server board that you want to push a powerful CPU on. while you can use a 16-core part on this board, don't think you can overclock it and get the same performance as a consumer board with better VRM cooling.
keep that in mind for any server board that you want to push a powerful CPU on. while you can use a 16-core part on this board, don't think you can overclock it and get the same performance as a consumer board with better VRM cooling.
With that in mind have you seen any of the x570s (without active VRM cooling) motherboards that you would recommend?
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
as with almost all server boards. the VRM cooling is anemic since they expect this board to be used in a server chassis with high power fans.
this board is also only designed for CPUs up to 105W TDP. overclocking in any form for a 16-core chip will be out of the question. an overclocked 3950X/5950X can easily pull 150-175W. you'll pretty much have to run it at stock, or even underclocked/undervolted to keep things happy.
keep that in mind for any server board that you want to push a powerful CPU on. while you can use a 16-core part on this board, don't think you can overclock it and get the same performance as a consumer board with better VRM cooling.
I have a couple of server boards without any cases. They're sat on a bookshelf. I've hung four powerful mains-powered fans above them to move air across the shelf (loud!). Gotta be careful though, fingers on the mains terminals or the metal pointy blades hurts a bit when you're reaching in to adjust something on the board!
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
keep that in mind for any server board that you want to push a powerful CPU on. while you can use a 16-core part on this board, don't think you can overclock it and get the same performance as a consumer board with better VRM cooling.
With that in mind have you seen any of the x570s (without active VRM cooling) motherboards that you would recommend?
Tom M
The only boards I know without chipset cooling are high-end boards.
I am waiting till the Ryzen 9 5950x arrives to actually commit to a particular Asus motherboard.
I have MBs I can test it on but I am still pondering the lowest cost MB that has "great" MB cooling.
Yes, I am assuming a water-cooled CPU in the final form.
Given that this would be a primarily over-clocked CPU processing system and given I have that nasty "limited budget" issue would the Asus ROG Strix B550-F Gaming be a reasonable choice? One or Two RTX 3080 ti's would turn it into a robust E@H system but it is primarily going to be a U@H cruncher.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Ian&Steve C. wrote:Your board
)
Thanks for that information, I do like to know exactly how things work so I can decide what to connect where. I'll stick to the multiplexers, since I've never had a problem with single lane GPU limiting processing speed. I use Einstein and MW on boinc, and Folding at Home.
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
GWGeorge007 wrote:One of the
)
I never unplug. I just turn off the switch on the back of the PSU so the standby voltage is off, or components might get damaged if something shorts when I plug something in a bit squint. I have actually seen a computer power up while someone added a PCI card. He must have shorted something to cause a power-on command. I also always use a shiny bit of metal. Black paint isn't a conductor! Not that I've bothered recently, because modern stuff seems pretty tough. I think I'll be more careful with anything expensive though, especially if it's not under warranty!
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
I just added a small wire to
)
I just added a small wire to my computer case attaching it back to my UPS case. I was resetting the computer every time I walked through the living room and touched the case and drew a static spark. That spark was discharging through the motherboard and power supply and rebooting the system instantly.
There was enough resistance between the cpu case and the UPS case that the static discharge went through the mainboard instead of through the power supply cable grounds in the UPS power cable and the PC cable back to the UPS.
The grounding wire solved the static discharge reboots.
I guess the problem is the
)
I guess the problem is the paint on the case. The PSU will be well grounded, but since it and the computer case have paint on them, they probably don't connect well. Were you feeling the spark? Probably due to your carpet and sock/slippers. What's the humidity in your house? Mine is 50-90%, I don't get static.
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
Apparently the "Ryzen Server"
)
Apparently the "Ryzen Server" was popular enough that an x570 version was created.
Here
So if you can live with 3 gpu limit and use riser or ribbon cables this could be your boinc goto for the 3950x/5950x CPU.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
as with almost all server
)
as with almost all server boards. the VRM cooling is anemic since they expect this board to be used in a server chassis with high power fans.
this board is also only designed for CPUs up to 105W TDP. overclocking in any form for a 16-core chip will be out of the question. an overclocked 3950X/5950X can easily pull 150-175W. you'll pretty much have to run it at stock, or even underclocked/undervolted to keep things happy.
keep that in mind for any server board that you want to push a powerful CPU on. while you can use a 16-core part on this board, don't think you can overclock it and get the same performance as a consumer board with better VRM cooling.
_________________________________________________________________________
Ian&Steve C. wrote: keep
)
With that in mind have you seen any of the x570s (without active VRM cooling) motherboards that you would recommend?
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Ian&Steve C. wrote: as with
)
I have a couple of server boards without any cases. They're sat on a bookshelf. I've hung four powerful mains-powered fans above them to move air across the shelf (loud!). Gotta be careful though, fingers on the mains terminals or the metal pointy blades hurts a bit when you're reaching in to adjust something on the board!
If this page takes an hour to load, reduce posts per page to 20 in your settings, then the tinpot 486 Einstein uses can handle it.
Tom M wrote: Ian&Steve C.
)
The only boards I know without chipset cooling are high-end boards.
ASUS ROG Crosshair VIII Dark Hero
Gigabyte X570 AORUS XTREME
I am waiting till the Ryzen 9
)
I am waiting till the Ryzen 9 5950x arrives to actually commit to a particular Asus motherboard.
I have MBs I can test it on but I am still pondering the lowest cost MB that has "great" MB cooling.
Yes, I am assuming a water-cooled CPU in the final form.
Given that this would be a primarily over-clocked CPU processing system and given I have that nasty "limited budget" issue would the Asus ROG Strix B550-F Gaming be a reasonable choice? One or Two RTX 3080 ti's would turn it into a robust E@H system but it is primarily going to be a U@H cruncher.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)