Iwill P4S Motherboard Memory Upgrade

Boost the performance of your Iwill P4S computer by upgrading its memory. With extra memory, you can also enjoy running multiple programs simultaneously.

Avoid fatal exception errors, stop messages and random reboots by investing in quality memory for your Iwill P4S. The computer memory upgrade choices listed here have been tested for quality and compatibility with your Iwill P4S motherboard. In addition, you get a limited lifetime warranty and free technical support with your computer memory upgrade.

Iwill P4S Motherboard Specs:

• 168-pin DIMM Banking: 3 (3 banks of 1)
• Chipset: Intel 845
• Error Detection Support: ECC and non-ECC
• Graphics Support: AGP 4X
• Max Unbuffered SDR SDRAM: 3072MB
• Module Types Supported: Unbuffered only
• SDR SDRAM Frequencies: PC100 and PC133
• Supported DRAM Types: SDR SDRAM only
• USB Support: 1.x Compliant

These 168-pin DIMM modules are compatible with your P4S:

512MB SDRAM, PC133, CL=2, Unbuffered, Non-parity, 133MHz, 3.3V, 64Meg x 64

512MB SDRAM, PC133, CL=3, Unbuffered, Non-parity, 133MHz, 3.3V, 64Meg x 64

512MB SDRAM, PC133, CL=2, Unbuffered, ECC, 133MHz, 3.3V, 64Meg x 72

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

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

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

Iwill P4S Memory FAQ

What does PC100 and PC133 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 Iwill P4S 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 Iwill P4S, you do not need to worry about the CL rating. If you are overclocking, then going with a lower CL may help stabilize your Iwill P4S motherboard.