NVMe on MXM - power problem ( Samsung 990PRO 2T )

[emcze]

Hi,

 

I bought MMX to NVMe adapter and new NVMe 2T Samsung 990PRO version with heatsink ( because I had 20% discount it was cheaper than standard ). 

 

 

 

Now I know that Heatsink version is too high for M18x.

 

 

and I need to remove heatsink

 

 

 

and after connected I have problem.

 

System started with disk visible in system:

 

 

I replaced Steam library to new NVMe drive and start play. All game had lags with low FPS. I replaced Steam library to old SSD but still was the same. 

 

I checked FurMark and FPS were low. Usually connented to AC power I have 85 FPS, on battery I have only 6 FPS... with NVMe and AC Power I had only 15 FPS. 

 

I tried find problem and I found it in power on my RTX. GPU-Z with full GPU load showed me very low power on GPU.

 

 

I removed NVMe and everything were good:

 

 

 

After installed NVMe one more time still the same -  low power, low FPS. 

 

To fast replace disk I modified a little palm rest and now I need only remove keyboard

 

 

Now tell me, WTF ?? Where is a pronlem ?? 

1) I need change something in BIOS 

2) Samsung 990PRO 2T drain to much power for my power supply and I need to replace it with other one ( I have few NVMe in my home serwer )

3) My power supply 240W is too weak and I need to use 330W from SLI model

 

I'm away from home ( 3 months in hospital and I'm only in half time ) and another disk can check when I back but maybe you use yours disk with 240W PS. 

 

Like always please HELP ME !!! 🙂 

[nforce4max]

Power draw in this case shouldn't be the issue however running that without any cooling isn't a good idea at all even with the cheap crap out there. I would take a look to see what the gpu is running with in terms of pci-e lanes and if it is running at 3.0 spec etc beyond that is anyone's guess unless someone with some experience with this adapter comes forward.

[emcze]

29 minutes ago, nforce4max said:

running that without any cooling isn't a good idea at all even with the cheap crap out there

990PRO... 200 USD is not cheap, I know few 2T about 100 USD 🙂

 

I use Samsung Magician and after copy 1T to the disk still was about 47 C. Heatsink is not a problem, I will use some copper plate when back home. Problem is low power on RTX. 

[emcze]

I ordered new 970 EVO Plus and situation is the same. Max. FTP about 17 and GPU power draw about 18W with SSD in adapter.

 

Wrong adapter ?? not enought PS ( 240W ) if I have active 2 MXM slot ?? I saw that my battery indicator shows connected PS but description shows only battery state without charging and alll time is the same battery percentage.

[aldarxt]

6 hours ago, emcze said:

I ordered new 970 EVO Plus and situation is the same. Max. FTP about 17 and GPU power draw about 18W with SSD in adapter.

 

Wrong adapter ?? not enought PS ( 240W ) if I have active 2 MXM slot ?? I saw that my battery indicator shows connected PS but description shows only battery state without charging and alll time is the same battery percentage.

The m18xr2 I always use 330w adapter no matter what. The 17x's sometimes I use a 240w but try to use 330w if I am benching or gaming. Since you're using 2nd gpu slot I would try only 330w

[emcze]

I bought new, originall 330W  power suplly. BIOS shows 330W.

 

When I connected NVMe disk ( no mater 970 EVO Plus or 990 PRO ) GPU Power Draw is on normall level. 

 

 

Problem is still with speed, all time 3 x 1. Software, driver or adapter problem ??