NVME SSD running PCIe 1.0 instead of 3.0
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=18210
Printed Date: 05 Feb 2025 at 6:37pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: NVME SSD running PCIe 1.0 instead of 3.0
Posted By: ptvspw
Subject: NVME SSD running PCIe 1.0 instead of 3.0
Date Posted: 23 Feb 2021 at 8:55pm
Hello, I recently bought an NVME Reletech, but the speed is very low, I have already tried to change the BIOS, I also tried to upgrade the BIOS and downgrade but in no case did it work. I noticed that in CrystalDiskInfo the transfer is in PCIe 1.0 x4 and I don't know how to change, in forums I found similar problems that were from the BIOS. Someone already?  
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Replies:
Posted By: muziqaz
Date Posted: 24 Feb 2021 at 6:58pm
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PCIe x16/2x8 switch either set to 2x8 (see if SSD speeds change), or if there is an option of x8x4x4, use that. Promontory PCI-e speed select Gen 3 as well ------------- folding@home |
Posted By: ptvspw
Date Posted: 24 Feb 2021 at 9:35pm
I tried all the PCIe options and it didn't work Promontory PCI-e speed doesn't have the gen 3 option, it just goes to gen 2, I also tried to select GEN 2 
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Posted By: muziqaz
Date Posted: 24 Feb 2021 at 9:40pm
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What motherboard is this? ------------- folding@home |
Posted By: muziqaz
Date Posted: 24 Feb 2021 at 9:45pm
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Is it possible, that SSD itself is stuck at pcie1? Unfortunately I cannot find any website of manufacturer to see if they have firmware update of some sorts. It being sold on aliexpress does not offer much confidence either :( ------------- folding@home |
Posted By: ptvspw
Date Posted: 24 Feb 2021 at 10:42pm
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Asrock B450M Steel legend. I tried some BIOS versions: 2.60 2.90 3.30 3.60 (currently is this) |
Posted By: muziqaz
Date Posted: 24 Feb 2021 at 10:45pm
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Have you tried both M.2 slots? Maybe you are using second slot, which is SATA3 only ------------- folding@home |
Posted By: ptvspw
Date Posted: 24 Feb 2021 at 10:45pm
Using SiSoftware Sandra, it shows that it goes to 3x, but when performing tests it really is in 1x
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Posted By: ptvspw
Date Posted: 24 Feb 2021 at 10:48pm
the other slot only accepts sata, it can't even read my ssd
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Posted By: muziqaz
Date Posted: 24 Feb 2021 at 11:01pm
2.5Gbps is ~250MB/s :D I think that might be faulty SSD. You don't have any other PC at fiends or anywhere else to test? Also, just for kick and giggles, could your run crystal disk mark with 50MB and 500MB sample sizes (instead of 1GiB you have selected now), you can set number of tests to 2 instead of 5. Also if you could monitor temperatures of that drive while it is being tested, that would be great as well ------------- folding@home |
ptvspw wrote:Posted By: ptvspw
Date Posted: 24 Feb 2021 at 11:10pm
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This is my problem now, I don't have other PC to test :( The support from asrock answer me and told the same thing, to test in another PC here the result test 
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Posted By: muziqaz
Date Posted: 24 Feb 2021 at 11:17pm
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Yeah, the only way to find out if SSD is faulty is to check on another PC. When Asrock motherboards have issues with SSDs, they usually refuse to even see that SSD. ------------- folding@home |
Posted By: ptvspw
Date Posted: 25 Feb 2021 at 11:00am
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The problem is my motherboard, I tested the SSD on a friend's laptop and it worked correctly :( Now I will wait for asrock to answer the ticket, but probably the answer will be that they do not support this brand. 
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Posted By: kuririkura
Date Posted: 28 Feb 2021 at 8:52am
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Promontory is for secondary slots coming from chipset. (Secondary pci, secondary m.2, etc) If you are put it on the main m.2 slot check the FCH or something at the bios for the pcie gen, usually the option is only : auto, gen 1, and gen 3, force it at gen 3. If you see gen 2 option, that's the wrong option, check other place |
Posted By: kuririkura
Date Posted: 28 Feb 2021 at 8:53am
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No wonder you get problem, your ssd brand is nameless lol (i have some problem with you) Check here for supported one http://www.asrock.com/mb/AMD/B450%20Steel%20Legend/#Storage |
Posted By: kuririkura
Date Posted: 28 Feb 2021 at 9:18am
Sorry it's NBIO not FCH |
Posted By: ptvspw
Date Posted: 01 Mar 2021 at 7:55am
I got another SSD to test, and it didn't work either. With that I conclude that the problem is really in the motherboard.
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Posted By: WhiteGravey
Date Posted: 25 Aug 2021 at 6:25am
| Im having The same exact issue with the same mobo using my new SN750 1tb. I had a evo Samsung in there previously and had no issues getting full speeds. I'm thinking it s the mobo also..... |