Why Don't I get the accurate SSD speed in my Acer Aspire 5 (A515-51G-59UX)?

aphanic

egydiocoelho said:

It is a physical limitation of the motherboard. You can confirm hwinfo64:

I'm afraid it doesn't always work! Take a look at this thread and the outcome: https://community.acer.com/en/discussion/608887/m-2-slot-compatibility-on-aspire-f15-f5-573g-72fs

Sobuj

egydiocoelho said:

It is a physical limitation of the motherboard. You can confirm hwinfo64:

There is the information

Sobuj

aphanic said:

Sobuj said:

aphanic said:

Aha! RST with Optane is what you want, switch to that one and see if Windows boots (don't despair if it doesn't)

If it didn't boot, it'd just be a matter of accessing the BIOS again and set it to AHCI, but given it was in RAID before...

I did the changes and there is no problem at all. But I did go again to ensure if all was working fine. There I discover that in the main section the SATA mode was RST with Optane but in the information section the SATA Mode was RAID.

The Intel utility keeps not seeing the SSD?

Intel Online Driver shows the ssd from the beginning but the Intel Optane Memory till not showing the ssd.

aphanic

Sobuj said:

I'm afraid that's the link with the GPU, there are 4 PCIe lanes dedicated to it, but it has nothing to do with the SSD.

So, I can think of 3 things:

• The SSD is just a 2-lane one, and the speeds would be as expected; link us to the item in Amazon to check it out.
• The configuration is messed up, the system being old and using old drivers don't help, we'd need to dig deeper into that.
• The M.2 slot is actually allocated just 2 lanes of PCIe bus instead of 4, so it'd be expected as well.

Sobuj

aphanic said:

Sobuj said:

I'm afraid that's the link with the GPU, there are 4 PCIe lanes dedicated to it, but it has nothing to do with the SSD.

So, I can think of 3 things:

• The SSD is just a 2-lane one, and the speeds would be as expected; link us to the item in Amazon to check it out.
• The configuration is messed up, the system being old and using old drivers don't help, we'd need to dig deeper into that.
• The M.2 slot is actually allocated just 2 lanes of PCIe bus instead of 4, so it'd be expected as well.

Mine is a NVMe SSd not M.2. This one is the ssd.

Sobuj

Is there anything to do with the boot option? I change it to UEFI... And I format the partition of SSd as GPT.

aphanic

Sobuj said:
Mine is a NVMe SSd not M.2. This one is the ssd.

I know, NVMe SSDs get inserted in M.2 slots, they are elongated rectangles.

And that shows 4 lanes and 4 lanes active... run the speed test again and let's see the results.

Sobuj

aphanic said:

Sobuj said:
Mine is a NVMe SSd not M.2. This one is the ssd.

I know, NVMe SSDs get inserted in M.2 slots, they are elongated rectangles.

And that shows 4 lanes and 4 lanes active... run the speed test again and let's see the results.

Ouu.. Okay.

Sobuj

The Speed dropped. I think for the usage. But you'll be know best. 

aphanic

Yes, it could be something also using the device in the background, not bad numbers overall, but disappointing when we consider it could reach 3k MB/s read and 2k MB/s write on sequential loads.

They're synthetic testings anyway, but there's something there keeping it from achieving its full potential, whether it's software I'd say so seeing as it has a 4x link, but without more examination I wouldn't know.

Wait! I have something else we could try, do you have a small USB stick we could use momentarily? I'd like to run from a live Windows environment and run the test in there.

Sobuj

aphanic said:

Yes, it could be something also using the device in the background, not bad numbers overall, but disappointing when we consider it could reach 3k MB/s read and 2k MB/s write on sequential loads.

They're synthetic testings anyway, but there's something there keeping it from achieving its full potential, whether it's software I'd say so seeing as it has a 4x link, but without more examination I wouldn't know.

Wait! I have something else we could try, do you have a small USB stick we could use momentarily? I'd like to run from a live Windows environment and run the test in there.

Yes I have 32GB and 16GB USB Sticks.

Sobuj

Sobuj said:

Is there anything to do with the boot option? I change it to UEFI... And I format the partition of SSd as GPT.

Can anything happen for this?

aphanic

Leave it in UEFI mode, it's fine. We'll go with it that way, give me a minute to write up some instructions, the 16GB one is enough, take things out of there because it will be cleaned in the meantime.

Sobuj

aphanic said:

Leave it in UEFI mode, it's fine. We'll go with it that way, give me a minute to write up some instructions, the 16GB one is enough, take things out of there because it will be cleaned in the meantime.

Ok.

aphanic

Follow this procedure:

1. Take the important files off of the USB stick, because it will be emptied temporarily.
2. Download this image, this package of CrystalDiskMark and Rufus.
3. Insert the USB stick, open Rufus and select the image "Macrium Free.iso" you just downloaded. The options will be auto populated like what I'm showing you here:
   
   
   
   
4. Click START, when asked, select the default ISO image mode (not ESP) and wait for it to be copied to the drive.
5. After it's done, decompress the CrystalDiskMark package in the root of the USB stick as well, we'll need it there.
6. Now, access the BIOS again and enable the boot menu (F12). After the machine reboots use F12 and select the USB stick instead of the regular Windows. You should arrive at something like this:
   
   
   
   
7. Open a file explorer, 3rd icon on the bottom left and navigate to the CrystalDiskMark folder:
   
   
   
   
   
   
   
   
8. Finally, launch the test and lets see what comes of it, there's very little if at all running in this environment accessing the disk so the throughput should be cleaner than when run in your installed Windows. I just did it in a Virtual Machine and the results aren't bad at all (the storage was backed by an SSD too):
   
   
   

Sobuj

I have done all things you wanted me to do. And here is the result.

aphanic

That's too bad... then it's a hardware limitation for sure, that environment is as clean as it can be and I had integrated the proper RST drivers for performance to be at its best.

I'm afraid either your disk or your computer are limiting the throughput. I'm going to throw it at mine for real, out of virtual and we'll see.

Sobuj

Should I change the ssd? Or anything else I can do?

aphanic

I don't know if there's anything else to be done, I'm getting similar speeds as I get in my Windows 10 2004 usually:



vs.



It could be driver related, as in a bug in the current Intel driver, or maybe it is how your system was designed. It would be nice to try with a different SSD and see if you get the same results. Since you can always boot into that USB stick (as long as you don't delete its contents) you can test any you like. As long as it is partitioned, CrystalDiskMark doesn't work with raw disks I think.

To be honest I don't pay much attention to benchmarks, I like that the system is fast and all, but that's about where my excitement ends (although to be honest I'd be like you, trying to find out what the hell is going on and whether it can be fixed haha).

My disk is an ADATA XPG SX8200 Pro, in case that matters.

Sobuj

I am happy that, My system is now start in like under 10 seconds. Whereas in HDD I have to wait 40 seconds to 1 minute. But when I see that other peoples who buy the same ssd as mine they are getting bigger result according to mine, I feel disappointed. That's why I want to know the reason.

My SSD is in GPT format and the HDD in MBR format. I don't know what to do. Either I have to go with this or contact with the ssd seller. Or I have to check the ssd in another computer or laptop.