32GB SODIMM upgraded, but only 16GB POSTing

[StuC]

Hi

I've got a recent Fusion IV ( i7-10510U) originally with a 16GB SODIMM, however, since I'm recently doing a lot of VM / Docker work, I've needed to upgrade the RAM.

(The PC Specialist online upgrade advisor confirmed that a 32GB SODIMM this was a supported configuration - the Fusion IV only has 1 RAM Slot)
So I ordered a 32GB Corsair 2666MHz SODIMM DDR4 yesterday, which duly arrived today.

However, after shutting down and replacing the new RAM, only 16GB posts in both the BIOS and in Windows.
I've down the full Windows shutdown, and also tried briefly unplugging the battery, but no avail.

Any ideas?

Regards

Stuart

Pics of the BIOS after POST, and the 2 chips side by side. The new 32GB clearly labelled above

 

[Bastet]

Where did you purchase the RAM from?
I’m wondering if it’s fake. The label isn’t straight whereas the one below has a perfect label.
You might want to check further here: https://www.tenforums.com/tutorials/66809-determine-system-memory-size-speed-type-windows-10-a.html to see what each step says.
If all say 16Gb then either the RAM is dud, a fake or something requires updating on the PC - possibly BIOS.

 

[SpyderTracks]

Where did you buy the RAM?

 

[StuC]

All bought through PC Specialist - I trust them

Here's the wmic output, wth the 32GB chip inserted.
The PartNumber is exactly the same as the label on the existing / old 16GB Module (WMIC says CM4X16GE2666C18S4 whereas label says CM4X32GE2666C18S2)

So I'm guessing it then has to be:
- BIOS still caching the old chip despite replaced
- Someone's put the wrong sticker on the Chip
?

C:\Users\>wmic MemoryChip get /format:list

Attributes=2
BankLabel=BANK 2
Capacity=17179869184
Caption=Physical Memory
ConfiguredClockSpeed=2667
ConfiguredVoltage=1200
CreationClassName=Win32_PhysicalMemory
DataWidth=64
Description=Physical Memory
DeviceLocator=ChannelB-DIMM0
FormFactor=12
HotSwappable=
InstallDate=
InterleaveDataDepth=0
InterleavePosition=0
Manufacturer=029E
MaxVoltage=1200
MemoryType=0
MinVoltage=1200
Model=
Name=Physical Memory
OtherIdentifyingInfo=
PartNumber=CM4X16GE2666C18S4
PositionInRow=
PoweredOn=
Removable=
Replaceable=
SerialNumber=00000000
SKU=
SMBIOSMemoryType=26
Speed=2667
Status=
Tag=Physical Memory 1
TotalWidth=64
TypeDetail=128
Version=

 

[SpyderTracks]

All bought through PC Specialist - I trust them

I'm sure that's legit then. You might want to try resetting the CMOS on the motherboard, but you'd need to contact PCS on how to do that, often there a key configuration on the keyboard on boot these days rather than having to take out the battery on the mobo.

You could also try resetting BIOS settings to default and see if that sorts it.

 

[StuC]

Ok - problem solved!

I had disconnected the (main) battery pack, but hadn't disconnected the CMOS battery.
After hard shutdown and disconnecting the CMOS battery for 5 mins, the notebook now posts the full 32GB and wmic now correctly returns the expected value:

PartNumber=CM4X32GE2666C18S2

There was an awkward 90 seconds during the reboot where nothing happened - for a moment I had thought I had bricked it

 

[SpyderTracks]

Ok - problem solved!

I had disconnected the (main) battery pack, but hadn't disconnected the CMOS battery.
After hard shutdown and disconnecting the CMOS battery for 5 mins, the notebook now posts the full 32GB and wmic now correctly returns the expected value:

PartNumber=CM4X32GE2666C18S2

There was an awkward 90 seconds during the reboot where nothing happened - for a moment I had thought I had bricked it

Perfect! Well done!