rimms

You replace C- Rimms with Rimms.

RIMMs are traditionally faster and more expensive

You replace C- Rimms with Rimms

For RIMM modules, install the RIMMs beginning with bank 0 then 1 and so on.

I believe it's 0

DIMMs are the newer tech.

SO-RIMMs

RIMMs operate at speeds of 600 MHZ (PC600) or 800 MHz (PC800). All installed RIMMs must operate at the same speed, and have the same ECC or non-ECC rating. The operating speed is different than the data path size. RIMMs are avilable in 16- or 32-bit data path.

because they're bad

No, outdated some time back now.

False, Sytems using Rimms are no longer in production

184-pin RIMMs

600 MHz or 800 MHz

All Filled - By a minimum of one RIMM module and C-Rimms in all others to make a bank

C-RIMM refers to a special slot on a motherboard. It stands for 'Continuity-RIMM.' It is used to fill in RIMMs that motherboards do not use because all of them must be used.

RAM (Random Access Memory), SIMMs (Single Inline Memory Modules), DImms (Dual Inline Memory Modules), RIMMs (Rambus Inline Memory Modules).

72-pin SO-DIMMs, 144-pin SO-DIMMs, 160-pin SO-RIMMs and credit card memory

Bocci ball

16 bit without ECC and 18 bit with ECC

Source : A+ Guide to hardware 4e

dimm is better, dimm is faster, most motherboards is designed to work with this type of memory..

If rims work on high frequencies they dissipate more energy... To avoid memory damage and unstable operation manufactores install usually aluminium plates in order to increase effective surface area and transfer heat more effectively from rim's chips to the environment.

DDR and DDR2 RIMMS

RIMMs are copyrighted so companies have to pay to produce them. also, RIMM is legacy and getting to be much harder to find.

DIMM is open tech and they are now faster than Rambus anyway.

Generally i believe they had 32 pins. I think they had some more recent revisions that had like 64 or something, but generally they were 32.

Both the above manufacturers, use SDRAM (old pc's), DDR (newish pc's), and DDR II (New pc's).

Occasionally, and very rare now, Intel used RDRAM (Rimms). Made by Rambus. These at the time, were the fastest ram you could purchase, with a FSB of 800Mhz. But literally cost the earth.

Hope this helps

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RAMBUS memory is on a stick of RAM called a RIMM. It is the fastest RAM available but you have to have the hardware to use it. It comes in 184 pin for desktops and 160 pin for laptops. RIMMs are keyed differently than DIMMS so you can't install it in any computer. You are required to install RIMMs in pairs to use the full technology, it has a dual-channel technology. Each RIMM is 64 bits wide, but the RAMBUS alternated between two sticks to increase the speed of data retreival. RDRAM motherboards require that all RIMM slots be populated. Unused pairs of slots need a passive device called a continuity RIMM (CRIMM) installed in each slot to enable the RDRAM system to terminate properly. In other words, you have to buy a blank CRIMM to fill in the slots or it will not work properly on the motherboard.

Registered inline memory modules are not different than unregistered, though it is much faster. The only problem you would have if you are running more memory than your OS can support. 32-bit only supports up to 3.72G and 64-bit can support much more. Also, three RIMMs would have to run as 3 single channel memory. You won't be able to use double channel memory unless you have an even number.

On a motherboard, a CPU socket is where the processors placed, while memory slots are used to insert RAM modules. Additionally, the chipset is an interface between the front side bus and main memory, the flash ROM is used for the system's BIOS, and expansion slots are used for additional cards that can be inserted into the motherboard.

Simm = Single In-line Memory Module.

Dimm = Dual In-line Memory Module.

Rimm = RDRAM In-line Memory Module.

Simms were common from the early 1980s to the late 1990s. Simms and Dimms are very similar, except that Dimms have electrical contacts on each side of the module, while the contacts on SIMMs on both sides are redundant. Also, Simms are 32bit, Dimms are 64bit.

Rimms are obsolote, and were only used by very few Intel Pentuim 3 based motherboards, and early Pentuim 4 motherboards, and while perfomace was good, they were over 3 times the cost of similar SD Ram (Dimm) ram sticks. That, and the manufacturer of RDRAM Rimms taking various other companines in the Ram market to court are ther main reason why RDRAM is no longer used.

SDRAM (Synchronous DRAM)

Almost all systems used to ship with 3.3 volt, 168-pin SDRAM DIMMs. SDRAM is not an extension of older EDO DRAM but a new type of DRAM altogether. SDRAM started out running at 66 MHz, while older fast page mode DRAM and EDO max out at 50 MHz. SDRAM is able to scale to 133 MHz (PC133) officially, and unofficially up to 180MHz or higher. As processors get faster, new generations of memory such as DDR and RDRAM are required to get proper performance.

DDR (Double Data Rate SDRAM)

DDR basically doubles the rate of data transfer of standard SDRAM by transferring data on the up and down tick of a clock cycle. DDR memory operating at 333MHz actually operates at 166MHz * 2 (aka PC333 / PC2700) or 133MHz*2 (PC266 / PC2100). DDR is a 2.5 volt technology that uses 184 pins in its DIMMs. It is incompatible with SDRAM physically, but uses a similar parallel bus, making it easier to implement than RDRAM, which is a different technology.

Rambus DRAM (RDRAM)

Despite it's higher price, Intel has given RDRAM it's blessing for the consumer market, and it will be the sole choice of memory for Intel's Pentium 4. RDRAM is a serial memory technology that arrived in three flavors, PC600, PC700, and PC800. PC800 RDRAM has double the maximum throughput of old PC100 SDRAM, but a higher latency. RDRAM designs with multiple channels, such as those in Pentium 4 motherboards, are currently at the top of the heap in memory throughput, especially when paired with PC1066 RDRAM memory.

DIMMs vs. RIMMs

DRAM comes in two major form factors: DIMMs and RIMMS.

DIMMs are 64-bit components, but if used in a motherboard with a dual-channel configuration (like with an Nvidia nForce chipset) you must pair them to get maximum performance. So far there aren't many DDR chipset that use dual-channels. Typically, if you want to add 512 MB of DIMM memory to your machine, you just pop in a 512 MB DIMM if you've got an available slot. DIMMs for SDRAM and DDR are different, and not physically compatible. SDRAM DIMMs have 168-pins and run at 3.3 volts, while DDR DIMMs have 184-pins and run at 2.5 volts.

RIMMs use only a 16-bit interface but run at higher speeds than DDR. To get maximum performance, Intel RDRAM chipsets require the use of RIMMs in pairs over a dual-channel 32-bit interface. You have to plan more when upgrading and purchasing RDRAM.

How much memory do I need? How much RAM is currently installed in my system? How many and what kind of memory modules are currently installed on my motherboard? How much and what kind of memory can I fit in my motherboard? How do I select and purchase the right memory for my upgrade? How much memory do I need? How much RAM is currently installed in my system? How many and what kind of memory modules are currently installed on my motherboard? How much and what kind of memory can I fit in my motherboard? How do I select and purchase the right memory for my upgrade? -Mr. Spok is Greg

When Intel was developing the Pentium 4, they knew that regular SDRAM just wasn't going to be fast enough to handle the quad-pumped 400MHz frontside bus. Intel announced plans to replace SDRAM with a very fast,new type of RAM developed by RAMBUS, Inc. called Rambus Dram, or simply RDRAM. Intel thought it would be the next great leap in DRAM technology, RDRAM could handle speeds up to 800MHz, which gave Intel of room to improve the Pentium 4. RDRAM was greatly anticipated, but industry support RDRAM proved less than enthusiastic due to significant delays in development, plus a price many times that of SDRAM. At first all major PC makers sold systems that used RDRAM-for a while. RAMBUS ran into three roadblocks that betamaxed it(made it obsolete because no one bought it). First, the technology was solely owned by RAMBUS, if you wanted to make it you had to pay a licensing fees they charged. Secondly it was too expensive, it cost substantially more than SDRAM. Finally, RAMBUS and Intel made a completely closed deal for the technology. RDRAM worked only on Pentium 4 systems using Intel-made Memory Controller Chips. AMD was out of luck. So the rest of the industry had to look for a another high speed resolution. So then DDR came along and now there is DDR2 and DDR3 which is cheaper.

Notebook and their replacement parts cost more than desktop PCs with similar features because their components are designed to be more compact and stand up to travel. They use…compact hard drives and small memory modules and CPUs that require less power than regular components. Other factures to consider: the original equipment manufacturer's warranty and a customized installation of the OS that is unique to notebooks.

Why look up all the answers - here they are!

Chapter 11

Reviewing the Basics.

1. Because their portability. They use thin LCD panels instead of CRT monitors. It costs more to make smaller parts that take up less space.

2. 200-pin DDR2 SDRAM, 200-pin DDR SDRAM, 144-pin SDRAM, 72-pin FPM or EDO

3. Ni-Cad, NiMH, Lithium Ion

4. AC Adapter, DC Adapter and battery pack

5. Video Inverter Card

6. Type 1 are up to 3.3mm thick, Type III are 10.5 mm

7. Hot-swappable

8. The Socket service and the Card service

9. A "Dongle" or "Pigtail"

10. add/remove hardware for Windows 2000 , PC Card applet for windows 98

11. Restart computer and then press F8 function key. and then select last good configuration mode. Update Windows with latest XP service pack.

12. SO-RIMMs

13. memory, hard drives, lcd panels, mini pci card, motherboard, CPU, keyboard, PC card, floppy drive, and sound card

14. so you don't void the warranty

15. The DC controller is a card inside the notebook that converts voltage to CPU core voltage.

16. You lose all the Data and Applications on the PDA

17. Windows Mobile and Blackberry

18. A port replicator provides a means to connect a notebook to a power outlet and provides additional ports. A docking station provides the same function as a port replicator, but also adds secondary storage.

19. Hard drive

20. Type I, Type II (which have 100 pins) and Type III (which has 124 pins).

21. allows the use of two modem connections at the same time to speed up data throughput when connected over phone lines

22. The Standard XP setup CD might not have the supports drivers specific for the notebook.

23. model and serial number

24. go into CMOS setup and disable the internal device.

25. Bluetooth, usb/serial port, wifi/internet connection , universal cradle

Thinking Critically

1. B

2. How much money do you want to spend? Do you type faster than you write? What kind of notes are there (pictures, text)?

PC3200 is another way of writing PC400 or DDR 400. All three of those mean that the bus speed of the RAM module is 400MHz. In similar fashion PC2700 is PC333 or DDR 333 (333 MHz) and PC2100 is PC266 or DDR 266 (266MHz). PC3200 is a type of RAM or random access memory for your computer. There are several different types of RAM: for example PC100, PC133, PC2100, PC2700 and now PC3200. Each number represents a specific megahertz bus system. If you going to be upgrading your ram make sure to look for PC 3200 on the chip to assure that it is compatible with your bus system. For regular SDRAM in the PCxxx designation the xxx is the memory clock rate in MHz i.e. 133MHz for PC133. For DDR SDRAM in the PCxxxx designation the xxxx is the memory bandwidth in MB/s i.e. PC3200 is 3200MB/s. This corresponds to a 200MHz clock (400MHz "data rate"). Since DDR SDRAM uses a 64-bit wide bus (8 bytes wide), 8 bytes * 400 MHz = 3200MB/s. Note these aren't real megabytes; they are found using 1MB = 1000 * 1000 B, not 1024 * 1024 B. Since all the computer companies can't seem to agree on a standard, there are many types of RAM especially with all the improvements with speed and number of pins allowing for faster access time and more storage. Finding the correct type of RAM is very difficult. You must know the following: the form factor (SIMMs, DIMMs, and RIMMs), the type (SD, DDR SD, RD, DDR, DDR2, DDR3), and the speed (333, 400, 667, etc). Because RAM is the most commonly upgraded component in computer system, some company (I forget who) developed a system for telling what type of RAM is which. So instead of having to know all the above information, you just need to know the PC rating (like PC3200) and you're good to go.

computer uses PC3200 by all means get it.

PC2700 stands for DDR Sdram that operates at 333MegaHertz.

Mega means 1 million, approximately.

Hertz stands for -> Cycles per Second.

I know this all probably sounds like 'Greek' to you.

Your processor and ram memory operate at a Frequency Rate. Frequency Rate, is usually just referred to as 'Speed'

"What "Speed' does your processor run at?" "What 'Speed' of ram do you have?" Like that.

The Frequency Rate is determined by Cycles per Second. Get's much deeper than this, I won't go into it now.

PC3200 is DDR Sdram that operates at 400MHz.

That's why I say go for PC3200.

Some things you need to know,

1.What is the Maximum TOTAL Amount of ram for your computer?

(Motherboard)

2.What is the Maximum Amount for EACH ram slot? Do you know if your ram slots have a Maximum Amount of 1GB? No fun to buy a 1GB stick of ram, and find out your computer can't use it!

yes, infact ddr and sdram can be on the same module. It just depends on what your motherboard need, here is a list of all the types of ram. SRAM: Static random access memory uses multiple transistors, typically four to six, for each memory cell but doesn't have a capacitor in each cell. It is used primarily for cache.

DRAM: Dynamic random access memory has memory cells with a paired transistor and capacitor requiring constant refreshing. FPM DRAM: Fast page mode dynamic random access memory was the original form of DRAM. It waits through the entire process of locating a bit of data by column and row and then reading the bit before it starts on the next bit. Maximum transfer rate to L2 cache is approximately 176 MBps. EDO DRAM: Extended data-out dynamic random access memory does not wait for all of the processing of the first bit before continuing to the next one. As soon as the address of the first bit is located, EDO DRAM begins looking for the next bit. It is about five percent faster than FPM. Maximum transfer rate to L2 cache is approximately 264 MBps. SDRAM: Synchronous dynamic random access memory takes advantage of the burst mode concept to greatly improve performance. It does this by staying on the row containing the requested bit and moving rapidly through the columns, reading each bit as it goes. The idea is that most of the time the data needed by the CPU will be in sequence. SDRAM is about five percent faster than EDO RAM and is the most common form in desktops today. Maximum transfer rate to L2 cache is approximately 528 MBps.

DDR SDRAM: Double data rate synchronous dynamic RAM is just like SDRAM except that is has higher bandwidth, meaning greater speed. Maximum transfer rate to L2 cache is approximately 1,064 MBps (for DDR SDRAM 133 MHZ).

RDRAM: Rambus dynamic random access memory is a radical departure from the previous DRAM architecture. Designed by Rambus, RDRAM uses a Rambus in-line memory module (RIMM), which is similar in size and pin configuration to a standard DIMM. What makes RDRAM so different is its use of a special high-speed data bus called the Rambus channel. RDRAM memory chips work in parallel to achieve a data rate of 800 MHz, or 1,600 MBps. Since they operate at such high speeds, they generate much more heat than other types of chips. To help dissipate the excess heat Rambus chips are fitted with a heat spreader, which looks like a long thin wafer. Just like there are smaller versions of DIMMs, there are also SO-RIMMs, designed for notebook computers. Credit Card Memory: Credit card memory is a proprietary self-contained DRAM memory module that plugs into a special slot for use in notebook computers.

PCMCIA Memory Card: Another self-contained DRAM module for notebooks, cards of this type are not proprietary and should work with any notebook computer whose system bus matches the memory card's configuration. CMOS RAM: CMOS RAM is a term for the small amount of memory used by your computer and some other devices to remember things like hard disk settings -- see Why does my computer need a battery? for details. This memory uses a small battery to provide it with the power it needs to maintain the memory contents. VRAM: VideoRAM, also known as multiport dynamic random access memory (MPDRAM), is a type of RAM used specifically for video adapters or 3-D accelerators. The "multiport" part comes from the fact that VRAM normally has two independent access ports instead of one, allowing the CPU and graphics processor to access the RAM simultaneously.

VRAM is located on the graphics card and comes in a variety of formats, many of which are proprietary. The amount of VRAM is a determining factor in the resolution and color depth of the display. VRAM is also used to hold graphics-specific information such as 3-D geometry data and texture maps. True multiport VRAM tends to be expensive, so today, many graphics cards use SGRAM (synchronous graphics RAM) instead. Performance is nearly the same, but SGRAM is cheaper.

Answer 2 Whilst I applaud the above poster for the indepth answer. They are wrong in the assumption that SDram / DDR Ram, can be used at the same time. This is NOT the case. Occasionally on older motherboards, there are slots for SDRam and DDR RAM, they CANNOT be used at the same time, due to the different speeds they run at.

Also there is now DDR II ram, which is faster still than DDR Ram, and again these cannot be used at the same time as DDR Ram. Hope this helps

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