Question Best approach to replace a M.2 NVMe PCIe Gen 3 x4 (without NAND)

Manuel Jordan

Commendable
Apr 3, 2022
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Hello friends

I have an "ASUS ZenBook Pro UX501VW-DS71T" laptop

According with the official features for the SSD is as follows:

the ultra-fast up to 512GB PCIe® x4 SSD storage with its transfer speeds of 1400MB/s ensures maximum responsiveness

Through Amazon for the same laptop is indicated:

Amazing 512 GB NVMe Solid State Drive (PCIeGen3 x4), the absolute latest in SSD performance & technology.

Even more, some months ago I opened the laptop and the SSD is practically this Samsung at Amazon
It because the P/N is the same as "MZVPV512HDGL-00000". Therefore about its specs is indicated as follows:
  • M.2 Interface: PCIe 3.0 x4 lanes, up to 32Gb/s
  • 256MB LPDDR2 DRAM Buffer Memory
  • 3 Year Warranty, Supports Standard NVMe driver, APM and L1.2 Power Saving Mode, End-to-End Data Protection, Support TRIM Command, RoHS Compliant, Halogen-Free Compliance
  • Sequential Read: 2150MB/s, Sequential Write: 1500 MB/s, Random Read (QD=4): 300K IOPS, Random Write (QD=4): 100K IOPS
  • Works with most motherboards and notebooks with a compatible M.2 PCIe interface slot. Includes Z97/X99/Z120 motherboards. Not compatible with the MacBook, MacBook Air, MacBook Pro, or Mac Pro (see description for details)
Sadly Amazon does not sell anymore that item. So I must buy from other manufacturer

FYI it is the original SSD, so never was changed and so far it works fine. There is the intention to buy a new SSD to install Linux and keep the former as backup.

Therefore if I am not wrong the SSD is a: M.2 NVMe PCIe Gen 3 x4 and according with my understanding it is nothing related with "NAND"

As an Observation: I had communication with ASUS through email and was indicated to use only 512GB. So the attempt to install 1TB would "burn" the chipset

After to did do a research I found these options:
My main concern is that the manufacturers are not very known

Now I found this one as Gen4 x4
Questions
  1. What is the best approach to replace a M.2 NVMe PCIe Gen 3 x4 (without NAND)?
  2. Is mandatory use Gen3 x4?
  3. Is possible/viable use Gen4 x4 and expect in peace a downgrade?
It about Gen4 vs Gen3 (both have the same x4 lanes). My concern is: I want have zero risk to harm the mainboard

Pls, I need your guidance.

Thanks in advance
 
What is the best approach to replace a M.2 NVMe PCIe Gen 3 x4 (without NAND)?
Open up your laptop,
remove old M.2 SSD,
install new M.2 SSD,
install OS of your choice (linux as you indicated above).
Is mandatory use Gen3 x4?
Is possible/viable use Gen4 x4 and expect in peace a downgrade?
It about Gen4 vs Gen3 (both have the same x4 lanes). My concern is: I want have zero risk to harm the mainboard
It's not mandatory, but it is recommended to use Gen3 drive.
Your laptop supports PCIE Gen3.
Gen4 and Gen5 drives would still work (in Gen3 mode), but they run hotter than Gen3 drives.
Your laptop may not be able to provide proper cooling for those.

Get Samsung 970 evo. A very good Gen3 M.2 drive.

I had communication with ASUS through email and was indicated to use only 512GB. So the attempt to install 1TB would "burn" the chipset
That's nonsense. There is no such capacity limit.
 
I upgraded my first M.2 laptop from 256GB to 2TB and my newer laptop from 512GB to 4TB. Just cloned from small to big, swap drive, no problems.

I'd expect a Gen.4 drive running at (slower) Gen.3 speeds to use slightly less power, than it would running at Gen.4 speeds. This difference might only be a few tenths of a Watt.

I had communication with ASUS through email and was indicated to use only 512GB. So the attempt to install 1TB would "burn" the chipset
My guess is they're playing safe and trying to avoid a potential RMA, if you fit some mad power hungry beast of an M.2 drive which tries to pull double the design power from the laptop chipset, e.g. 10W instead of 5W. Even then, I'd expect the laptop chipset to incorporate current limiting.

I doubt very much you spoke to a proper design engineer, but instead to someone reading from script. It's important to keep engineers away from the customer, because they tell the truth.

Gen.5 drives tend to run hotter than Gen.4 due to increased speed. There may not be much difference between older Gen.3 and newer Gen.4, despite the speed difference. Over the years, manufacturers make improvements that might reduce M.2 power consumption in newer designs.

You can check specific M.2 drive power consumption in some reviews. You might even find your existing and proposed new drive amongst those tested and compare power ratings, if you're paranoid.

according with my understanding it is nothing related with "NAND"
Correct. NAND is simply a type of flash memory. Whether or not an M.2 drive includes NAND is up to the manufacturer.
https://en.wikipedia.org/wiki/Flash_memory
https://en.wikipedia.org/wiki/NAND_gate
 
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Hello friends

I have an "ASUS ZenBook Pro UX501VW-DS71T" laptop

According with the official features for the SSD is as follows:



Through Amazon for the same laptop is indicated:



Even more, some months ago I opened the laptop and the SSD is practically this Samsung at Amazon
It because the P/N is the same as "MZVPV512HDGL-00000". Therefore about its specs is indicated as follows:
  • M.2 Interface: PCIe 3.0 x4 lanes, up to 32Gb/s
  • 256MB LPDDR2 DRAM Buffer Memory
  • 3 Year Warranty, Supports Standard NVMe driver, APM and L1.2 Power Saving Mode, End-to-End Data Protection, Support TRIM Command, RoHS Compliant, Halogen-Free Compliance
  • Sequential Read: 2150MB/s, Sequential Write: 1500 MB/s, Random Read (QD=4): 300K IOPS, Random Write (QD=4): 100K IOPS
  • Works with most motherboards and notebooks with a compatible M.2 PCIe interface slot. Includes Z97/X99/Z120 motherboards. Not compatible with the MacBook, MacBook Air, MacBook Pro, or Mac Pro (see description for details)
Sadly Amazon does not sell anymore that item. So I must buy from other manufacturer

FYI it is the original SSD, so never was changed and so far it works fine. There is the intention to buy a new SSD to install Linux and keep the former as backup.

Therefore if I am not wrong the SSD is a: M.2 NVMe PCIe Gen 3 x4 and according with my understanding it is nothing related with "NAND"

As an Observation: I had communication with ASUS through email and was indicated to use only 512GB. So the attempt to install 1TB would "burn" the chipset

After to did do a research I found these options:
My main concern is that the manufacturers are not very known

Now I found this one as Gen4 x4
Questions
  1. What is the best approach to replace a M.2 NVMe PCIe Gen 3 x4 (without NAND)?
  2. Is mandatory use Gen3 x4?
  3. Is possible/viable use Gen4 x4 and expect in peace a downgrade?
It about Gen4 vs Gen3 (both have the same x4 lanes). My concern is: I want have zero risk to harm the mainboard

Pls, I need your guidance.

Thanks in advance
Just to muddy the water......you could fit a 2.5 ssd and not have to worry about this gen3/gen4 stuff or the 500GB/1TB size limit and not see any diff in perf.
 
Thanks to all for the replies

*SkyNetRising*

Open up your laptop,
remove old M.2 SSD,
install new M.2 SSD,
install OS of your choice (linux as you indicated above).

Yes, I did do that in other laptops but with SSD 2.5''

It's not mandatory, but it is recommended to use Gen3 drive.
Your laptop supports PCIE Gen3.
Ok

Gen4 and Gen5 drives would still work (in Gen3 mode), but they run hotter than Gen3 drives.

Ok, so downgrade happens. Pls do not consider the following question as rude.
About the "heat". Is that a fact or is an assumption?

Your laptop may not be able to provide proper cooling for those.
Ok, it is a concern too

Get Samsung 970 evo. A very good Gen3 M.2 drive.

I found these models about Samsung

All are Gen 3 x4 and NAND too. I am not sure if NAND would be problematic for this laptop too. That's other research to do
The unique Evo is the first. Is that one you are referring?

That's nonsense. There is no such capacity limit.

I thought the same because the laptop is based with x64 architecture. So theoretically should not exist problem

Now, to be honest, a friend that is a salesman and repairman of laptops told me he had many clients where their laptops do not support 1TB. If my memory does not fail me, black screen. Thus was mandatory use 512GB

*Misgar*

I upgraded my first M.2 laptop from 256GB to 2TB and my newer laptop from 512GB to 4TB. Just cloned from small to big, swap drive, no problems.

I believe you but as the salesman situation. Some laptops do not support that kind of upgrade

I'd expect a Gen.4 drive running at (slower) Gen.3 speeds to use slightly less power, than it would running at Gen.4 speeds. This difference might only be a few tenths of a Watt.

Ok, second confirmation about a downgrade

My guess is they're playing safe and trying to avoid a potential RMA, if you fit some mad power hungry beast of an M.2 drive which tries to pull double the design power from the laptop chipset, e.g. 10W instead of 5W. Even then, I'd expect the laptop chipset to incorporate current limiting.

Has sense about the first part. But I don't want put at risk the laptop. Once installed Linux I am going to execute the "dmidecode" command to see more stats

I doubt very much you spoke to a proper design engineer, but instead to someone reading from script. It's important to keep engineers away from the customer, because they tell the truth.

Has sense your point. And mostly how probable is that they have in labs a laptop designed at 2016

Gen.5 drives tend to run hotter than Gen.4 due to increased speed. There may not be much difference between older Gen.3 and newer Gen.4, despite the speed difference. Over the years, manufacturers make improvements that might reduce M.2 power consumption in newer designs.

So is more "safe" a Gen 4

You can check specific M.2 drive power consumption in some reviews. You might even find your existing and proposed new drive amongst those tested and compare power ratings, if you're paranoid.

I understand

Correct. NAND is simply a type of flash memory. Whether or not an M.2 drive includes NAND is up to the manufacturer.

Ok. And I wrote: I am not sure if NAND would be problematic for this laptop too. That's other research to do

*Bob.B*

Just to muddy the water......you could fit a 2.5 ssd and not have to worry about this gen3/gen4 stuff or the 500GB/1TB size limit and not see any diff in perf.

How that would be possible within a laptop? The dimensions of the SSD are totally different

Huge thanks to all for your feedback
 
Thanks to all for the replies

*SkyNetRising*



Yes, I did do that in other laptops but with SSD 2.5''


Ok



Ok, so downgrade happens. Pls do not consider the following question as rude.
About the "heat". Is that a fact or is an assumption?


Ok, it is a concern too



I found these models about Samsung

All are Gen 3 x4 and NAND too. I am not sure if NAND would be problematic for this laptop too. That's other research to do
The unique Evo is the first. Is that one you are referring?



I thought the same because the laptop is based with x64 architecture. So theoretically should not exist problem

Now, to be honest, a friend that is a salesman and repairman of laptops told me he had many clients where their laptops do not support 1TB. If my memory does not fail me, black screen. Thus was mandatory use 512GB

*Misgar*



I believe you but as the salesman situation. Some laptops do not support that kind of upgrade



Ok, second confirmation about a downgrade



Has sense about the first part. But I don't want put at risk the laptop. Once installed Linux I am going to execute the "dmidecode" command to see more stats



Has sense your point. And mostly how probable is that they have in labs a laptop designed at 2016



So is more "safe" a Gen 4



I understand



Ok. And I wrote: I am not sure if NAND would be problematic for this laptop too. That's other research to do

*Bob.B*



How that would be possible within a laptop? The dimensions of the SSD are totally different

Huge thanks to all for your feedback
Specs show it supports a 2.5 disk.
 
Specs show it supports a 2.5 disk.
Yes, the specs indicates that but is not correct.

But the "features" only indicates M.2. Remember I opened the laptop. There is no place to install a SSD

Thus I bought a SSD 2.5'' by incorrect information. Anyway it is used in other machine