pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

Pentium 4 Memory

Dual-channel memory operation is dependent on a number of conditions being met, Intel specifying that motherboards should default to single-channel mode in the event of any of these being violated:

  • DIMMs must be installed in pairs
  • Both DIMMs must use the same density memory chips
  • Both DIMMs must use the same DRAM bus width
  • Both DIMMs must be either single-sided or dual-sided.

Currently, there are two different strategies being employed in dual-channel memory controllers, one in which where each memory bank has its own memory channel and an arbiter distributes the load between them and the other to actually create a wider memory channel, thereby doubling up on standard DDR’s 64-bit data paths. Current Intel chipsets employ the latter technique, with each pair of installed DIMMs acting as a 128-bit memory module, able to transfer twice as much data as a single-channel solution, without the need for an arbiter.

DIMM

This particular motherboard has 6 DIMM slots, arranged as two groups of three and colour-coded to indicate how memory modules should be installed in pairs.

 

Each group represents a separate channel, as follows:

  • Channel A: DIMMs 1, 2 and 3
  • Channel B: DIMMs 4, 5 and 6

DIMM1 pairing up with DIMM4 (the pair of orange slots), DIMM2 with DIMM5 and DIMM3 with DIMM6.

It’s important to refer to the Motherboard User Manual to determine precisely how DIMM slots may be populated to achieve dual-channel operation. In this case, DIMM3 and DIMM6 can only be used if the neighbouring DIMM2 and DIMM5 slots are either not occupied, or occupied with only a single-sided DIMM, the following table illustrating all the permitted dual-channel combinations:

DIMM1 DIMM2 DIMM3 DIMM4 DIMM5 DIMM6
2 memory modules DS/SS X X DS/SS X X
X DS/SS X X DS/SS X
X X DS/SS X X DS/SS
4 memory modules DS/SS DS/SS X DS/SS DS/SS X
6 memory modules DS/SS SS SS DS/SS SS SS

It is also the case that dual-channel memory performance varies, dependent on the way in which memory is configured. The following table illustrates DDR400 performance for the Intel 865P chipset used by the motherboard in question:

# DIMMS Sides per DIMM Mode SC or DC Ranking
2 2 Dynamic Dual channel 1
4 2 Dynamic Dual channel 2
4 1 Dynamic Dual channel 2
2 1 Dynamic Dual channel 3
4 Any Normal Dual channel 4
Any 2 Dynamic Single channel 5
Any 1 Dynamic Single channel 6
Any Any Normal Single channel 7

Interestingly, the first two rankings are reversed for the 875P chipset.

Insert the module into an available expansion socket, noting how the module is keyed to the socket. This insures the module can be plugged into the socket one way only.

Fit

SDRAM DIMMs and RIMMs both have two notches, albeit with different spacing. DDR modules – which we’re using here – have only one.

Firmly press the module into position, making certain the module is completely seated in the socket. The ejector tab clips will close automatically.

 

Repeat this procedure for each module you are installing.

 

  • Pentium 4 CPU
  • Pentium 4 Fan
  • Pentium 4 PSU
  • Pentium 4 Memory
  • Pentium 4 Removal

Filed Under: How to Install a Pentium 4 CPU

Latest Articles

DRAM – Dynamic Random Access Memory

DRAM chips are large, rectangular arrays of memory cells with support logic that is used for reading and writing data in the arrays, and refresh circuitry to maintain the integrity of stored data. Memory arrays are arranged in rows and columns of memory cells called wordlines and … [Read More...]

WAP Technology

Also crucial to making net access viable from mobile wireless devices is WAP, the Wireless Application Protocol. WAP is a global standard and is not controlled by any single company. Ericsson, Nokia, Motorola, and Unwired Planet founded the WAP … [Read More...]

Deactivating Facetime to Thwart Hackers

There are some silent threats that can become very serious if precautions are not taken. Facetime exploits are one of them. If you're a FaceTime user, it's probably worth deactivating the feature when it is not in use. At least, until we verify that Apple releases the case update (expected this … [Read More...]

Why Cross-Chain Trading Is the Future of Crypto Investing?

The rapid growth and evolution of the cryptocurrency market have opened up exciting opportunities for investors. Within this dynamic landscape, … [Read More...]

Revolutionize Your Internet Experience with Orbi 960 – The Ultimate WiFi System

In a world where seamless connectivity is essential, slow and unreliable internet connections are a major problem. Whether you are running a business, … [Read More...]

Do You Need a VPN When Trading Cryptocurrency?

There’s no doubt that the biggest global industries in 2023 are tech-driven, while there remains a significant crossover between many of these … [Read More...]

Goodbye Bitcoin: the 3 alternative cryptocurrencies that have great upside potential, according to experts

Bitcoin has been a very lucrative investment for people that got into it early. One report from The Motley Fool pointed out that $10 of bitcoin … [Read More...]

Self-driving cars face their Achilles’ heel and may be targets of hackers

The market for self-driving cars is booming. Customers spent $22.22 billion on these autonomous vehicles in 2021 and they will likely spend more in … [Read More...]

How to avoid scams with bitcoin and other cryptocurrencies

Cryptocurrencies got a bad reputation when scams multiplied like ants on a piece of cake. Even today many people associate bitcoin and other … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

Site Statistics

The following graph charts the growth in the number of visitors to the site each month, from the summer of 1998 to the present: The fall in … [Read More...]

AMD Athlon

The launch of the Athlon processor, in the summer of 1999, represented a major coup for AMD. It allowed them to boast … [Read More...]

Using Sudo for Super User Access to Root Privileges in Linux

The Linux super user, or root user, is a special user that has tremendous power, with the ability to access and modify all files on the operating … [Read More...]

[footer_backtotop]

Copyright © 2023 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors