I feel like you're looking for a $300, std ATX, dual-EPYC boad. it simply doesn't exist.
I can dream though... :)
Ian&Steve C. wrote:
you need to refine and declare your exact goals and constraints.
Excellent point. Let me see now.
What I want to do is buy a Epyc dual CPU MB (new) that will allow me to run ROME (gen 2) cpus.
Probably because it is going to be my "last" EPYC MB its going to have to be a 7001/7002 MB. This will allow me to take the one epyc CPU I currently have and get it "on the air". I THINK I might be able to find another one for a modest price which means I would need one more CPU cooler to get "everything" (all the PCIe slots) on the air.
That would give me a potential replacement GPU server (up to 4) rig. And would allow me to upgrade myself into serious CPU cruncher as time/money permits.
I am taking the "don't buy gen 1" admonishment strongly enough to not buy any 7601's (32c/64/t, 3+Mhz) even though the price is tempting.
So here is a question. Is there any information about running two different generation EPYC cpus on the same MB? And how about two different core count same generation cpus on the same MB?
I am confident only a hobbyist would ask this kind of question... but since I am a....
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
if you stick to CPUs no more than 200-225W TDP, you can get by with a Supermicro H11DSi and that should stay reasonably quiet if you use the same kind of CPU fan i sent you. or if you have the space, you can use some bigger threadripper/noctua coolers. they will be quieter, but have cross-board airflow perpendicular to the PCIe slots, if that matters (not ideal for server chassis front->back airflow for example).
any higher TDP and you're going to need loud powerful fans on the VRMs to keep things in check. these boards were designed for server chassis airflow, hence the rather small CPU VRMs vs consumer boards with less assumed airflow.
you still have the problem that all of them will be EATX/SSI-EEB form factor. keep that in mind if you plan to have this on a mining chassis, it might not fit.
Unless you plan to want to run dual 48 or dual 64-core CPUs at some point in the future ($5000-6000 investment in CPUs alone), I don't think you should bother with a dual socket motherboard at all. if you're thinking about a dual 32-core setup, you could just as easily get a single 64-core CPU.
Standard ATX sized single socket boards are cheaper, and more available. and will give you more PCIe slots.
So here is a question. Is there any information about running two different generation EPYC cpus on the same MB? And how about two different core count same generation cpus on the same MB?
I am confident only a hobbyist would ask this kind of question... but since I am a....
Tom M
Nope. Won't work. Cpus have to have the same number of cores among other things also.
If the scraping bridged the +5V to the Data +/- lines you killed the PHY port on the USB controller.
If the +5V shorted to ground then you should have blown the port fuse or if a PTC device it should reset itself if the short is removed.
A picture would really help.
Pictures in the previous message :)
My Brother found a couple of wires further back from the visibly damaged area that he believes was the location of a capacitor. He bent them away from each other (took some fishing since it is under some of the MB covering.
The good news is during the boot the messages about "over voltage" were no longer displaying.
The bad news is the "Log" command in the important category still mentions the over voltage.
I changed the grub to show all the boot messages. I am going to try again to see if I can see any now.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
So here is a question. Is there any information about running two different generation EPYC cpus on the same MB? And how about two different core count same generation cpus on the same MB?
I am confident only a hobbyist would ask this kind of question... but since I am a....
Tom M
Nope. Won't work. Cpus have to have the same number of cores among other things also.
not even that, they need to be the exact same CPU model, down to the stepping. even CPUs of the same model but different revisions/steppings wont pair together.
Tom, I know you're trying, but it's nearly impossible to make anything out in those pictures. out of focus and lacking context of where on the board we are supposed to be looking.
Tom, I know you're trying, but it's nearly impossible to make anything out in those pictures. out of focus and lacking context of where on the board we are supposed to be looking.
It looks a lot worse on this website. I have deleted the links so at least it isn't screwing up the formatting again.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Standard ATX sized single socket boards are cheaper, and more available. and will give you more PCIe slots.
And you make the case very nicely. I guess the only compromise I could afford is a single CPU system using either a 7601 or one of those new (not yet locked) Dell (32c/64t) processors.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Tom, I know you're trying, but it's nearly impossible to make anything out in those pictures. out of focus and lacking context of where on the board we are supposed to be looking.
It looks a lot worse on this website. I have deleted the links so at least it isn't screwing up the formatting again.
Next time I will post the URL's not the images.
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: I feel
)
I can dream though... :)
Excellent point. Let me see now.
What I want to do is buy a Epyc dual CPU MB (new) that will allow me to run ROME (gen 2) cpus.
Probably because it is going to be my "last" EPYC MB its going to have to be a 7001/7002 MB. This will allow me to take the one epyc CPU I currently have and get it "on the air". I THINK I might be able to find another one for a modest price which means I would need one more CPU cooler to get "everything" (all the PCIe slots) on the air.
That would give me a potential replacement GPU server (up to 4) rig. And would allow me to upgrade myself into serious CPU cruncher as time/money permits.
I am taking the "don't buy gen 1" admonishment strongly enough to not buy any 7601's (32c/64/t, 3+Mhz) even though the price is tempting.
So here is a question. Is there any information about running two different generation EPYC cpus on the same MB? And how about two different core count same generation cpus on the same MB?
I am confident only a hobbyist would ask this kind of question... but since I am a....
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
if you stick to CPUs no more
)
if you stick to CPUs no more than 200-225W TDP, you can get by with a Supermicro H11DSi and that should stay reasonably quiet if you use the same kind of CPU fan i sent you. or if you have the space, you can use some bigger threadripper/noctua coolers. they will be quieter, but have cross-board airflow perpendicular to the PCIe slots, if that matters (not ideal for server chassis front->back airflow for example).
any higher TDP and you're going to need loud powerful fans on the VRMs to keep things in check. these boards were designed for server chassis airflow, hence the rather small CPU VRMs vs consumer boards with less assumed airflow.
you still have the problem that all of them will be EATX/SSI-EEB form factor. keep that in mind if you plan to have this on a mining chassis, it might not fit.
Unless you plan to want to run dual 48 or dual 64-core CPUs at some point in the future ($5000-6000 investment in CPUs alone), I don't think you should bother with a dual socket motherboard at all. if you're thinking about a dual 32-core setup, you could just as easily get a single 64-core CPU.
Standard ATX sized single socket boards are cheaper, and more available. and will give you more PCIe slots.
_________________________________________________________________________
Tom M wrote: So here is a
)
Nope. Won't work. Cpus have to have the same number of cores among other things also.
Different processors on a dual socket motherboard?
Keith Myers wrote:A picture
)
It sure would. Maybe next time.
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Keith Myers wrote: "Scraped"
)
Pictures in the previous message :)
My Brother found a couple of wires further back from the visibly damaged area that he believes was the location of a capacitor. He bent them away from each other (took some fishing since it is under some of the MB covering.
The good news is during the boot the messages about "over voltage" were no longer displaying.
The bad news is the "Log" command in the important category still mentions the over voltage.
I changed the grub to show all the boot messages. I am going to try again to see if I can see any now.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Keith Myers wrote: Tom M
)
not even that, they need to be the exact same CPU model, down to the stepping. even CPUs of the same model but different revisions/steppings wont pair together.
_________________________________________________________________________
Tom, I know you're trying,
)
Tom, I know you're trying, but it's nearly impossible to make anything out in those pictures. out of focus and lacking context of where on the board we are supposed to be looking.
_________________________________________________________________________
Ian&Steve C. wrote: Tom, I
)
It looks a lot worse on this website. I have deleted the links so at least it isn't screwing up the formatting again.
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: Standard
)
And you make the case very nicely. I guess the only compromise I could afford is a single CPU system using either a 7601 or one of those new (not yet locked) Dell (32c/64t) processors.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)
Tom M wrote: Ian&Steve C.
)
Next time I will post the URL's not the images.
Tom M
A Proud member of the O.F.A. (Old Farts Association). Be well, do good work, and keep in touch.® (Garrison Keillor)