RAM Upgrade Questions

LocoMonoco

Distinguished
Mar 10, 2011
124
0
18,690
When i have a limited amount of money and I need to buy upgrades I like to double check and make sure that everything will work so I don't waste my money. I am going to upgrade the RAM in my PC (currently 4GB) and I went on the website for my computer's manufacturer and I looked at the RAM upgrade info (Thanks for this feature HP) and i am confused. I know that my RAM is DDR3-1333 and that my PC has 2 sticks and can hold up to 4. That's the basic info, but when I look at the specs for the RAM I wanna buy, it isn't that obvious. Let me give you some information

MY PC
--------------
Dual channel memory architecture
Four DDR3 DIMMs (240-pin) sockets
PC3-8500 (DDR3-1066)
PC3-10600 (DDR3-1333)
Non-ECC memory only, unbuffered
Supports 1GB, 2GB, and 4GB DDR3 DIMMs
Supports up to 16 GB on 64-bit systems

^That is the information given under "Upgrading Tips" or whatever.
Now here are the "specs" for the RAM I wanna buy.

RAM
--------------
4GB of DDR3 Desktop Memory
Utilizes HyperX module with faster latency timing for higher performance and speed
Specifically designed and tested for compatibility in various makes and models of desktop computers
From the industry leader in PC memory
Non-ECC Unbuffered 1866MHz CL9 240-pin DIMM type
Model: KHX1600C9D3B1/4G
Item Package Quantity: 1
RAM Memory Technology: DDR3 SDRAM
Form Factor: Desktop
Memory Storage Capacity: 4 GB
Memory Speed: 1600 MHz

I am actually quite new to upgrading PC's, so if someone could explain this stuff to me that'd be helpful.

Thanks,
LocoMonoco.
 
I'm going to guess by the way the upgrade specs are written this is an HP machine, is this a laptop or desktop, the modules are not interchangeable. First I'll recommend upgrading as a "kit" for ram, purchase two modules for the upgrade to ensure compatibility and dual channel function
I'll also suggest going to Kingston's Memory finder tool here http://www.kingston.com/us/memory/search/options/ it should find ram that will work for your system . If the ram they recommend doesn't work, Kingston will make sure it does (by help or replacement)

A quick 'break-down' of the Kingston KHX1600C9D3B1/4G model ram you list

PC3-28000 | 1600MHz | CL9 | 1.5v

And now a quick breakdown of that

PC3-28000 equates to the speed of 1600MHz for the ram. Your specs limit you to speeds of up to 1333MHz for ram. That does not mean that you cannot use that ram module, only that it will run at 1333MHz rather than the 1600MHz or 1866MHz you might otherwise get out of it. A higher frequency is better up to your limit of 1333MHz (sometimes 1600MHz ram is about the same price and can be used, but again will run at 1333MHz). The CL number is the CAS Latency number, that number you want to be low since it represents a delay in cycles for data access, lower number there, less delay. The voltage is good to know since it meets Intel's standard of 1.55v or less
Hope it helps