i bought from a shopee buyer and they said they give local warranty (1 year).
price i paid is RM65.90 including shipping with all the discounts (vouchers).
noticed that the model is no longer selling officially as it is old. but the item i received looks brand new maybe this is the old stock.

is the price above 'normal' or 'reasonable' price for the model and brand of RAM i bought?

i think i will just stick to the current setup. anyway, my PC is old already. no point to spend further $$ on it.

I upgrade to 16GB from the previous 8GB because I tot that it may help in performance but so far i realise my use case may not be able to utilise much on the extra 8GB.

but it is noticed that the shared GPU ram now shows only 8GB. could not remember the amount before i upraded to 16GB. but i guess it means the shared GPU never increase even the RAM is 16GB now. probably this is the limitation of the graphic card that it only utilises 8GB out of the available 16GB.

Auto allocate half of your total usable RAM, not installed RAM

ic. so i guess it is the hardware limitation of the graphic card that it can only utilise up to 8GB from 50% of the shared RAM pool.

anyway, given the price of the RAM, i think it is refurbished one. although the seller told me it is brand new. 
appearance wise it looks brand new though. no scratches etc.

On sticker, and cpuz will show manufatured date
1021 mean week 10 year 2021

this one? it means it is manufactured in week 18 year 2023?
how come there is no serial no. 

That need wait if other got answer, i dunno about serial number

Part number look weird, maybe fake RAM?

bought from shopee buyer. not sure.

anyone can confirm? it has no serial no as well.

https://forum.lowyat.net/index.php?showtopi...ost&p=101105328

My RMA ed RAM, yes surprise 2021 still got DDR3

i bought from a shopee buyer and they said they give local warranty (1 year).
price i paid is RM65.90 including shipping with all the discounts (vouchers).
noticed that the model is no longer selling officially as it is old. but the item i received looks brand new maybe this is the old stock.

is the price above 'normal' or 'reasonable' price for the model and brand of RAM i bought?

i think i will just stick to the current setup. anyway, my PC is old already. no point to spend further $$ on it.

I upgrade to 16GB from the previous 8GB because I tot that it may help in performance but so far i realise my use case may not be able to utilise much on the extra 8GB.

at least the part no like u said looks the same as my old no?

i am not sure if the old one is in slot 1 or slot 2. but i guess below one should be my old RAM.

..

the new 8GB ram i bought it from a shoppe seller. seems like i kena conned?

..

wondering. is the ram not working? or your system is giving you problem? ur screenshots are indicating that your board is recognizing both rams and you have 16GB ram.
you can run memtest to make sure the rams are fine.

Is the black kingston ram is the new one you got from shopee rite?

I cant tell if old hardware is reasonable prices or not, and what you shown with CPUZ ID it might even be remanufactured unit. Try use Thaiphoon to get the SPD value of that RAM and post the screenshot here

As RAM has very specific usage, most regular uses ie office or web, even games, don't often use up all the RAM available as Windows will also allocate pagefile memory. However with 2 RAM sticks you will able to run in dual channel mode which gives smoother and less lag when under heavy memory use ie using few heavy spreadsheets plus image editor, etc.

https://forum.lowyat.net/index.php?showtopi...ost&p=101105328

My RMA ed RAM, yes surprise 2021 still got DDR3

to be fair, like u said, the new ram is working which it is recognised in windows 10 and i had used the Windows Memory Diagnostic Tool and it shows no error.

what other memtest i can do?

yes, the black one is the new one i got from shopee. the shopee seller claimed that it is brand new and not even refurbished.

my main concern now is that if it is not even genuine kingston ram but counterfeit instead.
if yes, i would rather refund it. so i need to really confirm if it is genuine.
if it is not genuine kingston ram but really a fake one. it may work now but sooner or later it will fail i guess.
the warranty of this new ram is also not lifetime, but it is 1 year warranty by the seller. so this is also fishy.

is there any other way i can really prove if this ram is genuine or not?

this is it... how to tell if it is counterfeit or not?

it has no part no, no manufacturer. similar to what cpu-z shows.
it supposed to support XMP, obviously it does not = counterfeit??

Well, the cost is just 65rm, so it is really up to you. I would just use it as it is working fine.
But if this gives you too much sleepless nights, just return the ram and go to a physical store to get a new stick for a bit more cost like 100 rm.

google search the model number HX421C14FB2/8 does point to a valid Kingston ram model.

As you'd seen with the existing old RAM, that has more details. Ur new one has a lot of undefined which could mean the SPD is spoofed just to give working info to the BIOS. Which is oso why it prolly doesnt have an XMP profile.

I guess if it works, it works. Most dealers will give 1year warranty cuz after that you have to claim direct from Kingston distro so that is not a red flag.

Anyhow as what Wedchar2912 said, if ur not fine just return it, go down to lowyat and buy from the big shops. Gerenti original. Sure will be a bit more expensive than shopee but its worth ur peace of mind rite?