Shuttle Hot649A Motherboard Memory Upgrade

Boost the performance of your Shuttle Hot649A computer by increasing its memory. With more memory, you will also be able to run multiple programs simultaneously.

Cheap memory is often the cause of random fatal exception errors, stop messages and reboots. Buy quality memory from here for a stable Shuttle Hot649A system. The computer memory upgrade choices listed here have been tested for quality and compatibility with your Shuttle Hot649A motherboard. In addition, you get a limited lifetime warranty and free technical support with your computer memory upgrade.

Shuttle Hot649A Motherboard Specs:

• 168-pin DIMM Banking: 4 (4 banks of 1)
• Chipset: Intel 440BX
• Error Detection Support: ECC and non-ECC
• Graphics Support: AGP 2X
• Max Unbuffered SDR SDRAM: 1024MB
• Module Types Supported: Unbuffered only
• SDR SDRAM Frequencies: PC66 and PC100
• Supported DRAM Types: SDR SDRAM only
• USB Support: 1.x Compliant

These 168-pin DIMM modules are compatible with your Hot649A:

256MB SDRAM, PC133, CL=3, Unbuffered, Non-parity, 133MHz, 3.3V, 32Meg x 64

256MB SDRAM, PC100, CL=2, Unbuffered, Non-parity, 100MHz, 3.3V, 32Meg x 64

256MB SDRAM, PC133, CL=2, Unbuffered, Non-parity, 133MHz, 3.3V, 32Meg x 64

256MB SDRAM, PC133, CL=2, Unbuffered, ECC, 133MHz, 3.3V, 32Meg x 72

256MB SDRAM, PC100, CL=2, Unbuffered, ECC, 100MHz, 3.3V, 32Meg x 72

128MB SDRAM, PC100, CL=2, Unbuffered, Non-parity, 100MHz, 3.3V, 16Meg x 64

128MB SDRAM, PC133, CL=3, Unbuffered, Non-parity, 133MHz, 3.3V, 16Meg x 64

128MB SDRAM, PC133, CL=2, Unbuffered, Non-parity, 133MHz, 3.3V, 16Meg x 64

128MB SDRAM, PC100, CL=2, Unbuffered, ECC, 100MHz, 3.3V, 16Meg x 72

Shuttle Hot649A Memory FAQ

What does PC66 and PC100 mean?

This is the front side bus (FSB) clock speed of the memory. It is okay to run faster rated memory even if the installed CPU uses a slower FSB.

Do I need ECC or non-ECC memory?

ECC memory contains error correction circuitry to correct and fix memory errors. If you are running the computer as a web server, database server or anything mission critical, then ECC memory is the way to go. On the other hand, memory errors are so rare that for typical home use, non-ECC memory is recommended. Non-ECC memory is also cheaper and faster.

What does the CL number mean?

Column Address Strobe (CAS) Latency, or CL for short, specifies how many clock cycles the Shuttle Hot649A motherboard must wait before the memory module is ready to deliver the requested memory. The lower the CL number, the faster the access time.

However, the performance difference between CL=2 and CL=3 is so small that you will not notice any degradation in speed. Unless you are overclocking your Shuttle Hot649A, you do not need to worry about the CL rating. If you are overclocking, then going with a lower CL may help stabilize your Shuttle Hot649A motherboard.