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August 11th, 2018 12:00

Optiplex 3060, SAMSUNG 970 EVO, PCIe 2.0 x 4

Im installed nvme ssd SAMSUNG 970 EVO 250 GB on OPTIPLEX 3060 SFF - but speed si half. Samsung magician show: PCIE 2.0 x 4. In the manual is written:

Table 4. Storage specifications Type Form factor InterfaceCapacity One Solid-State Drive (SSD) M.2 2230 or 2280•
SATA AHCI, Up to 6 Gbps • PCIe 3 x4 NVME, Up to 32 Gbps • SATA C20 SED SSD • Up to 512 GB • Up to 1 TB • Up to 512 GB
 
Why ssd does not work on speed PCIE 3.0 x 4 - but only PCIE 2.0 x 4?

8 Wizard

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17K Posts

August 11th, 2018 22:00

I'm not sure I would assume that a piece of 3rd party software like Samsung Magician is 100% correct in this regard. Plus, you are talking about a minor discrepancy. 

Using Crystal DiskMark, what kind of sequential R/W speeds are you getting?

 

8 Wizard

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47K Posts

August 12th, 2018 15:00

That has nothing to do whatsoever with dell. Its specifically that the PCI-E lanes are at 2.0 speed.  You cant have 8 or even 4 slots that all have 16x pci-e 3.0 speed,  x16 @ PCI-E 2.1 is the same speed as X8 in pci-e 3.0 speed.  There are PCI-E solutions that have X16 speed but they rely on 4 pieces of X4 SSD Stick in Raid 0 configuration.   

NVME SSD X16NVME SSD X16

 

You will not be willing to pay for an X16 workstation and a Seagate Nytro 5910 NVME SSD XP7680LE80002

https://serverpartdeals.com/seagate-nytro-xp7680le80002-7-7tb-pcie-gen3-x16-16gb-s-full-height-half-length-solid-state-drives/

 

3 Posts

August 13th, 2018 07:00

In Work We have DELL Optiplex 3050 (B250 chipset) and SSD Samsung 960 EVO and the speed is 3200 MB / s (PCIe 3.0 x 4). The optiplex 3060 have a newer chipset (H370) - the NVME PCIe 3.0x4 is also listed in the OPTIPLEX 3060 manual. It's not from DELL's fair - they should write in the datasheet that the NVME speed is only PCIe 2.0 x 4

8 Wizard

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47K Posts

August 13th, 2018 07:00

 

PCIe 1.x - 250Mb/s per lane (4x = 4 lanes)
PCIe 2.0 - 500Mb/s per lane (thus 4x PCIe 2.0 is 2Gb/s)
PCIe 3.0 -  1000Mb/s per lane ( thus 4x PCIe 3.0 is 4Gb/s)

This SSD is not going to run at 100 percent maximum theoretical speed for the Bus.

This is why cross point storage uses MORE THAN 1 device on an X16 slot.

http://barefeats.com/hard210.html

This is not a Dell product and Not supported here.

970 EVO TLC

is NOT GOING TO BE AS FAST AS 970 PRO MLC MZ-V7P512BW

TLC will Always be slower than MLC or SLC because its 1 bit or 2 bits or 3 bits which is NOT 1  2  3   its   2   4   8 binary voltage levels.

There is a reason why TLC is cheaper and SLOWER than SLC or MLC.

It has 4X the number of Bits to write per block.

PRO is 2X faster than EVOPRO is 2X faster than EVO

 

SLC MLC TLCSLC MLC TLC

 

 

 

 

3 Posts

August 13th, 2018 07:00

Crystaldiskinfo show - TRANSFER MODE PCIe 2.0 x 4 | PCIe 3.0 x 4 Current mode | Supported mode Crystaldiskinfo speeds: READ 1808 MB/s WRITE 1505 MB/s (Normal speed - read 3400 MB/s write 1500 MB/s.

24 Posts

November 19th, 2018 14:00

I too have a Optiplex 3060 with a Samsung 970 EVO:

1) The Samsung Magician doesn't support this drive so where are you getting your information from?

2) My problem is that it appears to be a bad combination. If I use the computer too soon after rebooting (withing the first 5 minutes) I get the blue screen of death with either IRQL NOT LESS THAN or BAD HEADER POOL. I am running Windows 10 Pro. This EVO 970 worked great under Windows 10 and a Optiplex 3050 but not under a 3060. 

8 Posts

November 19th, 2018 16:00

Is this some kind of joke, mate? You're seriously posting here charts with SSD speeds and teaching him how TLC and MLC works?

Look at your own picture, it SHOULD demonstrare the speeds he is talking about! There's nothing should be told here about types of solid state memory! The problem is about PCIe working mode ONLY!

970EVO IS CAPABLE of showing 3000+ Mb read speed before it's SLC cache is not fully filled with data! So please stop this useless educational work here unless you have something to say about the problem and solution - PCIe speed ratio on this exact PC and SSD disk.

 

Here is personally for you the 970EVO's speed ratings running pure 3.0 mode in 7050 MFF:

 

image9.png

590 Posts

November 25th, 2018 10:00

It's unlikely switching from default Microsoft to Samsung's NVMe driver will change from PCIe 2.0 to 3.0.

However, running HWiNFO64 and looking for the SSD by drilling down under "Bus" would tell you the Current vs. Maximum PCIe Link values - Link Width and Link Speed.  You could see what the hardware is really capable of.

You could also try running with the Windows "High Performance" Power Option - might increase PCIe speed.

1 Message

December 9th, 2018 15:00

Same issue, the machine manual says it is PCIe 3 x4 NVME, Up to 32 Gbps

Pulling up the  max link speed for the actual hardware shows it can only do PCIe 2 x 4. To say I am ticked off is an understatement.

 

I had 40 of these things on order. 

 

Everyone pointing fingers at the SSD need to stuff it. The optiplex 3060 hardware can't freaking do it. Shut up about everything else, 2 is less than 3 that is all you need to know. You are not helping... 

5 Posts

December 17th, 2018 10:00

Same issue too.... with Samsung Evo 970 sequential speed test read max value is 1780... :(

11 Posts

December 19th, 2018 02:00

5 Posts

December 20th, 2018 14:00

Today I tested WD nvme BLACk 500GB too, after Samsung EVO 970....in all two disk max sequential read is 1700 instead of 3400+ Because the pci express connection of DELL 3060 MFF is only gen2 x 4 and not gen 3 x 4 as aspected from a H370 chipset and reported in the DELL 3060 manual and specification. I’m very very annoyed. I’m tried with  HWinfo64 and this software confirmed that m.2 nvme connection il only gen 2. 

 

 

11 Posts

January 23rd, 2019 04:00

I installed a couple of Optiplex 3060 SFF units today with Samsung 970 Evo NVMe SSDs, installed the Samsung NVMe driver, updated to latest BIOS/chipset using Dell Command and Samsung Magician reports PCIe 2 still which is a bit frustrating as my laptop is a few years old now and supports PCIe 3 x 4 NVMe!

24 Posts

January 23rd, 2019 04:00

I have re-read all the articles in this thread a couple times and there are some wonderful, very technical explanations but can someone put it in layman terms? If the manual says it is PCIe 3 x4 NVME, Up to 32 Gbps then did Dell miss-advertise? Where is the bottleneck? The bus? the slot?
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