Not all the PCIe slots are behind the 96-lane switch. The MPX slots are direct to the CPU, aren't they? No one's posted an lspci, ioreg, IORegistryExplorer.app, or pcitree.sh dump of the slots yet to confirm? Only the slots that you can switch between Pool A and Pool B are behind the 96-lane switch.
Yes. Reliability should be the same. Cards with multiple blades usually include fans and heatsinks though.
I bought the Amfeltec gen 3 SQUID for four M.2 card before the six M.2 card came out. The four M.2 card is low profile because it is double sided. The fan is noisy. It has no heat sinks. I haven't used it enough to determine if heat is an issue.
Yes, the MPX slots are wired directly to the CPU and that's why I wrote the second paragraph here, I'll word that correctly later.
forums.macrumors.com
Until someone buy one and use it for sometime, the compatibility status will keep as unknown.Does anyone try Toshiba XG6?
Toshiba XG6: TC58NCP090GSD controller: NVMe, M.2 blade
3D TLC
Speeds: up to ~3,200 MB/s read, up to ~3,000 MB/s write (1TB)
Compatibility status: Unknown
While In this post
Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe
Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe
This thread is about upgrading MacBook Airs & Macbook Pros (2013-2015) with new high speed and/or high capacity NVMe SSDs. This thread was one of the first to talk about MacBook Pro NVMe SSD upgrades on Macrumors, and was started by user "maxthackray", which we can thank and give tribute for...
Which NVMe SSDs are known to work?
You will need to buy a M.2 adaptor for all the below SSDs :
* Adata NVMe SSD : SX6000, SX7000, SX8200, SX8200 Pro etc.
* Corsair NVMe SSD : MP500, MP510
* Crucial NVMe SSD : P1
* HP NVMe SSD : ex920, ex950
* OCZ RD400 (and all Toshiba XG3-XG4-XG5-XG5p-XG6 line)
In this post show that it's compatible with Macbook pro, is that means should work in Mac Pro 7,1?
Can, but don't do that if you gonna RAID the blades.
Maximal throughput? 2-3 times faster. That is an NVMe SSD in a PCIe adapter runs about 1450-1500MBps, while SATA SSD run about 550MBps max.
Not necessarily. The partitions used for RAID 0 need to be the same size. If you have a 512GB and 1TB device, then you can create a 1TB raid with 512GB free on the 1TB device which can be used for a non-RAID partition. There is a small drawback where you can't read from both the RAID and non RAID partitions at the same time.
It seems SystemProfiler also includes a dump of ioreg. Might be nice if it were in an IORegisteryExplorer.app dump file to make it easier to navigate. One problem with SystemProfiler is the ioreg lines are truncated to 550 characters. That is enough for most information, but I can't use it to extract EDID for his Thunderbolt Display for example.
cd Info\ from\ tperfitt
source ../scripts/EDIDUtil.sh
source ../scripts/gfxutil.sh
loadioregfile ioreg.txt # doesn't work because ioreg file lines are truncated to 550 characters.
listedids
dumpedidall
decodeall
edidbinall
# extract nvram.plist and ioreg.txt from gist1.txt, then examine the results:
# Translate nvram
for thekey in $(sed -nE '/<key>(.*)<\/key>/s//\1/p' nvram.plist); do
thedata=$(/usr/libexec/PlistBuddy -c "Print :${thekey//:/\:}" nvram.plist | xxd -p -c 99999)
thedata=${thedata%0a} # remove extra linefeed that was added by PlistBuddy
printf "%s = %s = %s" $thekey $thedata "\"$(xxd -p -r <<< $thedata | tr -C '[:print:]' '.')\""
if [[ $thedata =~ ".*7fff0400" ]]; then
printf "%s" " = \"$(gfxutil $thedata)\""
fi
echo
done > nvram.txt
# Get all ioreg nodes
sed -nE '/^[ |]*\+/p' ioreg.txt > ioregsummary.txt
# Get all ioreg paths
thefilename=ioreg.txt
perl -e '
$thepath=""; while (<>) {
if ( /^([ |]*)\+\-o (.+) </ ) { $indent = (length $1) / 2; $name = $2; $thepath =~ s|^((/[^/]*){$indent}).*|$1/$name|; print $thepath . "\n" }
}
' < "${thefilename}" > ioregfullpaths.txt
# Get slot names
eval "$(
thefilename=ioreg.txt
perl -e '
$thepath=""; while (<>) {
if ( /^([ |]*)\+\-o (.+) </ ) { $indent = (length $1) / 2; $name = $2; $thepath =~ s|^((/[^/]*){$indent}).*|$1/$name| }
if ( /^[ |]*"(AAPL,slot-name)" = <(.*)00>/i ) { print "echo \"" . $thepath . "/" . $1 . " = <\$(xxd -p -r <<< " . $2 . ")>\"\n" }
}
' < "${thefilename}"
)" > slotnames.txt
/Volumes/Storage/Downloads/ParseIORegPCILinkStatus.sh ioreg.txt > parsedioreg.txt
Sounds like a reasonable approach for a cheap USB device.
I have certainly had it with MacSales. I have read some poor things on here about the Accelsior, but was still trying to see if this was a good solution. They say the form factor changed, but the measurements on the site are identical, and so are the Part #'s. For the one they say is only for the MacPro. Now they are saying it's less than a mm of difference, and that is the reason for the 30 to 40% price jump.
Still a x4 device, just PCIe 4.0.Samsungs new SSD 980 Pro was launched.
I wonder what it could perform in a HP card in a cMP 5.1 running High Sierra.
CES 2020: Samsung 980 PRO PCIe 4.0 SSD Makes An Appearance
www.anandtech.com
We'll probably eventually see cards with PCIe 4.0 switches (unless there's an issue with the extra heat?). Before that happens, you can probably add PCIe 4.0 slots with a PCIe gen 4 backplane in a PCIe expansion box (I've only tried a gen 3 backplane). Otherwise only AMD motherboards have PCIe 4.0 slots.