RAM Compatibility

[AntiCheatAgent94]

I have been building PCs for a couple decades now..

But RAM compatibility has always been like voodoo to me..

I have a PC that I am trying to upgrade the memory..



The upper stick set(4) works fine in the PC...

The bottom stick set(4) do not boot at all...


Is this a RAM Compatibility issue or do I have bad sticks in the lower set...

 

[CascadiaSRL]

Try mixing two from each set and see if that works. I doubt it will but if it does boot then check to see how much ram is showing. Personally, I think the sets are not compatible. Are the Kingston ones 8g?

 

[AntiCheatAgent94]

I think they are 2gb sticks..

I'll mix 'em up and let ya know.. Thanx

 

[CascadiaSRL]

Spec for the weird named ones;

Technical Specifications for HMT31GR7BFR4C-H9​

Manufacturer	Hynix
Manufacturer Part #	HMT31GR7BFR4C-H9
Memory Type	DDR3 SDRAM
Capacity	8GB
Data Transfer Rate	1333Mhz
Pins	240 Pin
Bus Type	PC-10600
Error Correction	Registered ECC
Cycle Time	1.5ns
Cas	CL9
Memory Clock	166Mhz
Rank	Rank 2
Voltage	1.5

 

[CascadiaSRL]

This is the Kingston ram;

Kingston 99U5403-036.A00LF 4GB

Description: PC3-12800, 1.5V


I would say that it is totally incompatible with each other and perhaps even with the motherboard.

 

[AntiCheatAgent94]

Mixing the mem didn't work.. Not really surprising..

The Motherboard is an ASUS Q87M-E..

Q87M-E | Motherboard | ASUS Global

ASUS Q87M-E motherboards feature the Intel® Q87 chipset, packed with advanced technologies and management functions, including 5X PROTECTION, new UEFI BIOS, and Intel® vPro for all-round durability and business-friendly usage

www.asus.com