EXPIRED Hynix DDR5 16GB ECC SO-DIMM 4800MHz (Dell branded) $56.40

[Weapon]

An actual RAM deal in Nov 2025? I found this looking for an upgrade to my HP Z2 G9 mini workstation.

Pardon Our Interruption...

Dell part number SNPCYXXPC/16G which is Hynix HMCG78MEBSA092N HMCG78MEBAA092N

I just received it today and can confirm it shows as real ECC in MemTest86 Pro in my HP mini (W680 platform).

Picture is both sides of the Dell modules (I ordered 2x) and the original HP Samsung DIMM for reference.

Listing is OBO, I didn't want to risk it so I bought at asking price.

Most comparable RAM is around $130+ although after finding this Hynix part number, I did locate another listing on Newegg for $79. HMCG78MEBSA092N SK Hynix 16GB DDR5 PC5-38400 4800MHZ 262-PIN Sodimm Memory BA Laptop Memory - Newegg.com

Correction, Newegg listing is for Non-ECC

 

[wesm63]

I took a shot on a couple sticks for my laptop (HP Probook 445 Gen 11 with the Ryzen 7 7735u) and it worked without issue. HP documentation doesn't say that it's supported but it works. Cheapest 32GB upgrade I could find during these crazy times.

Thanks for posting @Weapon

 

[Weapon]

can you test/confirm if ECC is supported on the Probook?

 

[wesm63]

According to this test, the memory is ECC, as expected, but ECC is not running. (I'm perfectly ok with this)

DMI Physical Memory Array      
    location        Motherboard
    usage            System Memory
    correction        None
    max capacity        64 GB
    max# of devices        2

DMI Memory Device      
    designation        Bottom-Slot 1(left)
    format            SODIMM
    type            DDR5
    total width        72 bits
    data width        64 bits
    size            16 GB
    speed            4800 MHz
    manufacturer        SK Hynix
    part number        HMCG78MEBAA092N              
    serial number        xxxxxxxx
    voltage            1.100000
    manufacturer id        0xAD80
    product id        0x0

DMI Memory Device      
    designation        Bottom-Slot 2(right)
    format            SODIMM
    type            DDR5
    total width        72 bits
    data width        64 bits
    size            16 GB
    speed            4800 MHz
    manufacturer        SK Hynix
    part number        HMCG78MEBAA092N              
    serial number       xxxxxxxx
    voltage            1.100000
    manufacturer id        0xAD80
    product id        0x0

 

[Weapon]

Very cool, I did not know about that method. My C246 motherboard and Xeon 2288G shows

DMI Physical Memory Array     
    location        Motherboard
    usage            System Memory
    correction        Single-bit ECC
    max capacity        64 GB
    max# of devices        4

DMI Memory Device     
    designation        ChannelA-DIMM0
    format            DIMM
    type            DDR4
    total width        128 bits
    data width        64 bits
    size            16 GB
    speed            2666 MHz
    manufacturer        Micron
    part number        18ASF2G72AZ-2G6D1
    serial number        20F82B85
    voltage            1.200000

DMI Memory Device     
    designation        ChannelA-DIMM1
    format            0x2
    type            unknown

DMI Memory Device     
    designation        ChannelB-DIMM0
    format            DIMM
    type            DDR4
    total width        128 bits
    data width        64 bits
    size            16 GB
    speed            2666 MHz
    manufacturer        Micron
    part number        18ASF2G72AZ-2G6D1
    serial number        213C6B83
    voltage            1.200000

DMI Memory Device     
    designation        ChannelB-DIMM1
    format            0x2
    type            unknown

 

[hmartin]

Hynix HMCG78MEBSA092N

It looks like there's a small typo here? The HMCG78MEBSA092N is non-ECC, your SODIMM photo shows HMCG78MEBAA092N which is ECC.

 

[Weapon]

It looks like there's a small typo here? The HMCG78MEBSA092N is non-ECC, your SODIMM photo shows HMCG78MEBAA092N which is ECC.

Good catch and thank you for the correction! OP has been updated. Cheers to everyone who was able to get in on this.