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Test memory

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  • Apr 29th, 2021 10:17 pm
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Apr 28th, 2021 2:24 pm
vivibaby [OP]
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Apr 28th, 2021 2:24 pm

Test memory

I use h2testw test memory microsd. It say 90mb/s but only get 73. Ship and sold by Amazon. Chance it is fake?
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Apr 28th, 2021 4:40 pm
IcarusLSC
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Apr 28th, 2021 4:40 pm

Sounds fine, check the capacity though as many fakes are small ones with firmware to make it say its larger (IE: a 2GB card that firmware says is a 32GB and will error on anything over 2GB)...
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Apr 28th, 2021 7:19 pm
vivibaby [OP]
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Apr 28th, 2021 7:19 pm

IcarusLSC wrote: ↑ Sounds fine, check the capacity though as many fakes are small ones with firmware to make it say its larger (IE: a 2GB card that firmware says is a 32GB and will error on anything over 2GB)...
I just ran test bit more and this is what I get: Not finish yet.

Warning: Only 488090 of 488092 MByte tested.
The media is likely to be defective.
161.9 GByte OK (339628032 sectors)
1 MByte DATA LOST (2048 sectors)
Details:1 MByte overwritten (2048 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
0 KByte corrupted (0 sectors)
1 MByte aliased memory (2048 sectors)
First error at offset: 0x0000001dabf00000
Expected: 0x0000001dabf00000
Found: 0x0000001dabe00000
H2testw version 1.3
Apr 28th, 2021 7:23 pm
Gee
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Apr 28th, 2021 7:23 pm

The speeds on the packaging are usually peak speeds meaning that it can go as high as that.

Sustained speeds are always lower
Apr 28th, 2021 8:01 pm
vivibaby [OP]
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Apr 28th, 2021 8:01 pm

Gee wrote: ↑ The speeds on the packaging are usually peak speeds meaning that it can go as high as that.

Sustained speeds are always lower
But I got error say defective. Should I try other program or just return?
Apr 28th, 2021 9:17 pm
IcarusLSC
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Apr 28th, 2021 9:17 pm

You should do a 'Write+Verify' test in H2testw on 'all available space'.

Get the newest version as well, 1.4
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Apr 28th, 2021 10:35 pm
vivibaby [OP]
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Apr 28th, 2021 10:35 pm

IcarusLSC wrote: ↑ You should do a 'Write+Verify' test in H2testw on 'all available space'.

Get the newest version as well, 1.4
You not going to believe but so weird.

I run again. Same program same setting. No update.

Warning: Only 488090 of 488092 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 72.6 MByte/s
Reading speed: 76.6 MByte/s
H2testw v1.4

Not sure why this time say 1.4. Maybe I go crazy. Astonished Face
Apr 28th, 2021 10:59 pm
IcarusLSC
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Apr 28th, 2021 10:59 pm

You still need to do the full test...
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Apr 28th, 2021 11:07 pm
vivibaby [OP]
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Apr 28th, 2021 11:07 pm

IcarusLSC wrote: ↑ You still need to do the full test...
I do both test both time.

First time error show up before finish.

Second time finish.

Same program v1.4

First time error code show v1.3

Second time pass say v1.4
Apr 28th, 2021 11:10 pm
IcarusLSC
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Apr 28th, 2021 11:10 pm

Where's the rest of the info then?
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Apr 28th, 2021 11:14 pm
markopas
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Apr 28th, 2021 11:14 pm

Can you run the same test in a different computer?
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Apr 28th, 2021 11:22 pm
vivibaby [OP]
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Apr 28th, 2021 11:22 pm

IcarusLSC wrote: ↑Where's the rest of the info then?
There is button that copy in program and I press. That is all.
markopas wrote: ↑ Can you run the same test in a different computer?
Sorry no.
Apr 29th, 2021 1:40 am
vivibaby [OP]
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Apr 29th, 2021 1:40 am

Gee wrote: ↑ If there is some doubt, return or exchange the product
Just run again. Error. I guess fake.

Warning: Only 488090 of 488092 MByte tested.
The media is likely to be defective.
280.8 GByte OK (588916736 sectors)
1 MByte DATA LOST (2048 sectors)
Details:1 MByte overwritten (2048 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
0 KByte corrupted (0 sectors)
1 MByte aliased memory (2048 sectors)
First error at offset: 0x0000004601f00000
Expected: 0x0000004601f00000
Found: 0x0000004601e00000
H2testw version 1.3
Apr 29th, 2021 3:12 pm
markopas
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Apr 29th, 2021 3:12 pm

What is the make and model of the memory?
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Apr 29th, 2021 10:17 pm
markopas
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Apr 29th, 2021 10:17 pm

vivibaby wrote: ↑ Sandisk Extreme
I would put the memory card in the device you want to use it in and format it with the device and see if run into issues. If no, pull the disk out and run the memtest again. If you still run into errors, return it/exchange it.

SanDisk does have their own tools on their site you can use for formatting and testing, might be worth looking into it. I think they can even identify if the disk is theirs.
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