We offer a lifetime repair or replace warranty.
Exchanges for a different module or refunds are only available the first 20 days after purchase and we do not refund shipping and handling fees and there is a 5$ charge per order.

Why do you tell me that an 8 chip module won't work in my laptop when it doesn't say that in my manual?

In some of the older laptops, they can not take a 8 chip part because the chips used on the 8 chip part were not invented yet when the laptop was built, so it could not have been foreseen that this would be a problem.

Do you offer volume discounts?

Yes, if you are going to be ordering 20 or more modules please call our sales team at 239-354-1230 or email us at Jeffsms@aol.com

Do you ship to APO addresses?

What is EDO?

It stands for “Extended Data Out RAM”
It is a type of dynamic RAM chip that improved the performance of fast page mode (FPM) memory in the mid 1990s
EDO eliminated wait states by keeping the output buffer active until the next cycle began
EDO memory was superseded by SDRAM

What is SDRAM?

What is DDR?

It stands for “Double Data Rate”
PC1600: the first commonly available DDR, rated for CAS2.5 at 200 mhz usage (100 mhz x2 because it's DDR, which is 200 mhz effective)
DDR266/PC2100: the most common form of DDR today, rated for CAS2.5 usage at 133MHz DDR (266 mhz effective)
DDR333/PC2700: the next big official step in DDR memory, rated for CAS2.5 usage at 166MHz DDR (333 mhz effective)
DDR400/PC3200: 200 mhz DDR (400MHz effective) RAM

What is DDR2?

It stands for “Double Data Rate 2”
It is a newer version of DDR that is twice as fast as original DDR
These speeds are available: PC2-3200 (DDR2-400), PC2-4200 (DDR2-533), PC2-5300 (DDR2-667)

What is RDRAM?

RDRAM is a more expensive, higher bandwidth variety of memory that you'll only find on higher-end Intel systems
It is commonly called Rambus, because the technology is very closely guarded by a company of the same name
While RDRAM is just memory that can be read from or written to, it is different from SDRAM in that it is designed to provide higher bandwidth and performance than normal SD-RAM
RDRAM not only provides a differing memory signaling process, but it also runs separate memory modules in serial, rather than in parallel like SDRAM.

What is FPM?

What is Flash RAM?

Flash RAM is what you'll find in digital cameras, for example
Flash RAM has a key property that none of the other types of RAM mentioned have: if you turn off the power to flash RAM, the bits stored inside it don't die
This means that it's fast like other RAM, but can be used to store data much like a hard-drive.
This type of memory is more costly, but this does, however, suit it to the world of digital cameras, where you don't need huge volumes of data storage
Many digital camera memory sticks are just a few flash RAM chips in a plastic holder

What is the difference between PC100 and PC133 memory?

PC100 is designed to run at 100 mhz, but it actually should run at speeds up to 125 mhz
PC133 is designed to run at 133 mhz, but should run at speeds up to 142 mhz
There is no real physical difference between PC100 and PC133: both have 168-pins and can be either single-sided or double-sided
The big difference is compatibility: PC133 can be run at 66 mhz, 100 mhz, or 133 mhz (or anything in between), but newer PC133 is built using high density memory chips
Older motherboards will not recognize high density RAM properly- either it will be recognized at half its capacity (example: 128 meg seen as 64 meg), or it won't be recognized at all

What is the difference between volatile and non-volatile memory?

The ability to store memory without power is called non-volatility
SDRAM is volatile memory, while flash is non-volatile memory
There are other forms of non-volatile memory, such as EPROM and EEPROM
An EPROM chip can only be written to once (like a CD-R), while EEPROMs can be re-written (like a CD-RW)