Low performance for my PCIe SSD Intel 900P

@Nightlane, good to hear from CPU temp not high....

I want to give you more hope, check out below. My best score using bios 6.62 2021 April 20, optane900p score 7020 in pcie2 with a HiKvision 512GB score 4802 in M.2 socket 1, Notice the pcie lane allocation as well as 8Gb/s=gen3 versus 2.5Gb/2=gen2 on GPU shows currently used, other testseses plus various details and information.

the AMD chipset package also date around 2021 April 20th +/-

the bios version and chipset version makes a big difference. I've always known this, but because we need better ram compatibily support using newer agessa plus resizable bar, hence sacrificed SSD performance :(

The chipset vulnerability problem also stole some performance from CPU, causing lost of score in AS SSD.

http://www.my-acoustic.com/images/07%20bios%20full%20manual%20all%20full%20lane%20speed%20x2%20optane900pscore7020%20E2000-512GBscore4802.png

test was with M.2 set to Gen3
http://www.my-acoustic.com/images/07%20bios%20full%20manual%20all%20full%20lane%20speed.png

I recall may be overclocked the CPU manually to get high score, hence please try manual CPU overclock as high as you can.



Below a test with singular optane900p without M.2 E2000 512GB

http://www.my-acoustic.com/images/05%20-%20x16%20run%208GTs%20must%20manual%20bios%20set%20Gen3%20with%20optane900p%20at%20slot%202%20with%20M.2%20in%20socket%201%20set%20to%20Gen2%20succesful.PNG

http://www.my-acoustic.com/images/05%20-%20x16%20run%208GTs%20must%20manual%20bios%20set%20Gen3%20with%20optane900p%20at%20slot%202%20without%20M.2%20in%20socket%201%20priority.PNG

Edited by cx5 - 24 Feb 2023 at 11:48am

M.2 adaptor vs riser vs 15cm cable vs M.2 direct to cable adaptor

http://www.my-acoustic.com/images/IMAG9003M.2adaptorvsRiservs15cmcable.jpg

Edited by cx5 - 27 Feb 2023 at 1:05pm

cx5 wrote: M.2 adaptor vs riser vs 15cm cable vs M.2 direct to cable adaptor http://www.my-acoustic.com/images/IMAG9003M.2adaptorvsRiservs15cmcable.jpg

if the interferences come from their own wires, well, if you feel crafty you can separate the wires and insulate them separately. It will end a bit shorter.

About possible power drop, hmmm, I think distance should not be important if the wires are decent. Probably you can try to use a potentiometer to check it?

If the power loss is a thing, you can try to weld a new cable + connector to the pcie connector directly.

Nightlane wrote: Is the interference between its own wires? If the interferences come from outside, I think you can add the right cover to insulate it.

Interference from outside. It's general rule, the longer the signal path the more chances of intereference, even motherboard's internal PCB traces suffer this rule, that's why M.2 right next to CPU is ULTRA speed.

Example, the power cable cannot run parallel next to signal cable, this is 100% signal degradation, the best option is power run 90 degrees perpendicular to signal, but easier said then done..... when space constrains, cable length, cable tidyness management are required.


opppssss wrong link previously, edited to correct link below.
eg power cable run parallel to SN770 adaptor card might be bad signal integrity


Edited by cx5 - 01 Mar 2023 at 3:26pm