nvme runs the specified Samsung 960 speeds on CH6 board
Not in my experience. I posted screenshots and had people telling my my drive was faulty. Same drive on the intel platform delivers much more performance.
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nvme runs the specified Samsung 960 speeds on CH6 board
Not in my experience. I posted screenshots and had people telling my my drive was faulty. Same drive on the intel platform delivers much more performance.
Maybe it was overheating?
Not according to hwinfo.
I'm certainly not going to join humbug in suggesting the drive, your settings or anything was at fault (and clearly your new Z370 platform has disproven this). However, @Panos may have a point there. I can't for the life of me remember where I saw it, as I've watched so many YT videos this week my head is spinning. However one of them discussed throttling on NVMe drives and showed some monitoring software displaying a single low temp, and others displaying that same lower temp and a second - much higher - temp. Perhaps your drive was hotter than you thought, and it was indeed throttling on the other board? It would perhaps be a better explanation for the strange bench results you were getting. If my new board doesn't have a built in NVMe heatsink, I'll be buying an EKB one I think.
I'm certainly not going to join humbug in suggesting the drive, your settings or anything was at fault (and clearly your new Z370 platform has disproven this). However, @Panos may have a point there. I can't for the life of me remember where I saw it, as I've watched so many YT videos this week my head is spinning. However one of them discussed throttling on NVMe drives and showed some monitoring software displaying a single low temp, and others displaying that same lower temp and a second - much higher - temp. Perhaps your drive was hotter than you thought, and it was indeed throttling on the other board? It would perhaps be a better explanation for the strange bench results you were getting. If my new board doesn't have a built in NVMe heatsink, I'll be buying an EKB one I think.
My use case is a bit unusual in that games are barely 1% priority (an occasional mess around) but I do a lot of high speed downloads with RARs and PAR checking, as well as running low level video transcoding all day and running several servers (Plex, Emby, Sonarr, NZBGet) and playing with virtual machines.
Did you installed the latest Samsung drivers? If it is using the PCI-e lanes it needs them.Not according to hwinfo.
Then you have nothing to worry about. None of those tasks are going to be bottlenecked the DMI link at all, not even close.
Ethernet can - at most use 4% of the link, the fastest M.2 SSD on the market (which the 960 Evo is not) can only hit 81% of it. So you could have a gigabit internet connection, download as fast as you can while benchmarking with a QD32 read into a ram drive and still not run out of bandwidth. I think you've really over-estimated your workloads there. Some of them are quite CPU heavy, but none of them are all that I/O intensive. Certainly not to the degree that the DMI link would be a concern.
If anything I'd be looking at more than 16GB of RAM honestly. A larger system cache is really going to some of those tasks, particularly parity work and running VM's.
Thanks for that. Regarding overestimating the IO, I was concerned more for the fact that downloading at (currently) 380Mbps to NVMe, while simultaneously PAR checking and unpacking RARs to an 850 and moving files to a rust spinner would be enough to push things over the top. If that's not the case then happy days. I am certainly considering 32GB, but it isn't a priority for most of my workload. Thanks again.
Does the data that you are downloading via Ethernet to disk even need to be transferred to the CPU?Doesn’t the Intel DMI 3 chip only have a x4 connection to the CPU for basically every device except the GPU, though? So that’s your NVME drive using all available lanes right off the bat, but then once your Ethernet also takes a piece you’re already effectively bottlenecking the drive as you download to it?
Did you installed the latest Samsung drivers? If it is using the PCI-e lanes it needs them.
On the Z370, is not running over the PCIe lanes, and isn't needed. Had similar issue with the X99 Ultra gaming and CH6, but not the Z170 Formula. It was resolved by installing the drivers.
Not in my experience. I posted screenshots and had people telling my my drive was faulty. Same drive on the intel platform delivers much more performance.
Your 4K speeds seem too low though:
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^ that's on X99 http://www.legitreviews.com/samsung-ssd-960-evo-review-250gb-and-1tb-nvme-m-2-drives-tested_188027/5