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What are you looking for in a Motherboard Review?

r9

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System Name Primary|Secondary|Poweredge r410|Dell XPS|SteamDeck
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Formfactor and if it's for Intel K chip to be Z chipset that's about it.
Motherboard is at the very bottom of my list for resource allocation.
GPU > CPU > RAM > SSD > PSU > Mobo.
Sorry but I just fall for the 29 phase power and 34 sata and usb ports nonsense. If I need more performance I just buy the next CPU up.
 
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Regarding AM5 motherboard reviews: I think it would be useful to test two fast transfers to/from M.2 and USB at the same time, fast enough to overload one or both CPU-chipset-chipset buses. Do the buses still operate close to their maximum data rate at all times, or are there any interruptions or speed drops?
 

ir_cow

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@Wirko, are you asking to transfer data from M2 to USB, or just bandwidth test of USB and M2 at the same time?
 
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Software Oldwin
@Wirko, are you asking to transfer data from M2 to USB, or just bandwidth test of USB and M2 at the same time?
Not sure... I consider a M.2 to USB transfer as two separate transfers, one going from M.2 through DMA controller to main memory, the other from memory through DMA to USB. So both examples you mentioned should be equal. Or is it not that simple?
 

ir_cow

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Not sure if its simply to setup or not honestly. I use DiskSPD and perform a read test of a 32GB file to see the bandwidth of the USB port or M2 socket. I'm not after the performance of the drive. just the bandwidth a drive "could" provide.

I have no idea how to do a read test through the USB port to a M.2 socket. Maybe someone has a script I can use.
 
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Copy a big file (throughput test) from USB to M.2 should do it. Or run a bench on each separate, and then at the same time to see if a shared bus decreases either drive bench when both are run concurrently.
 

ir_cow

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Copy a big file (throughput test) from USB to M.2 should do it. Or run a bench on each separate, and then at the same time to see if a shared bus decreases either drive bench when both are run concurrently.
Copy is limited to the drive write. It will give much lower numbers. But I could batch script multiple drive read test at the same time. That may(?) show the bandwidth limitation of the chipset?
 
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Copy is limited to the drive write. It will give much lower numbers. But I could batch script multiple drive read test at the same time. That may(?) show the bandwidth limitation of the chipset?
Crumbs, didn't think about that. I think one (read throughput) bench each should saturate it though, assuming you have some fast drives.
 
Joined
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1,181 (1.70/day)
Location
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Processor i5-6600K
Motherboard Asus Z170A
Cooling some cheap Cooler Master
Memory 16GB DDR4-2400
Video Card(s) IGP
Storage Samsung 850 EVO 250GB
Display(s) 2x Oldell 24" 1920x1200
Case Bitfenix Nova white windowless
Audio Device(s) E-mu 1212m PCI
Power Supply Seasonic G-360
Mouse Logitech Marble trackball, never had a mouse
Keyboard Key Tronic KT2000, no Win key because 1994
Software Oldwin
Crumbs, didn't think about that. I think one (read throughput) bench each should saturate it though, assuming you have some fast drives.
Something like that, yes.

Even writing to SSD should be plenty fast. Sustained writing exceeds one half of maximum interface bandwidth in most PCIe 4.0 x4 drives W1zzard tested recently; it's about 4,500 to 5,500 MB/s. It's impossible if you try to fill the whole drive but what he probably does is rewrite the same file many times over, in which case the writing occurs in the pSLC cache only.
 
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