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What are the reasons behind the fact that RIMMs are quickly becoming a legacy memory?
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.
All ready 128MB Sdram is inside.I like to add one more old 128MB sdram how can i found virus free ram?
All RAM is virus-free.
Ddram and sdram can be the same pin because i have old motherboard that i want to change a new oneis it possible to use my old sdram to my new motherboard which is ddram?
No. SDRAM has two notches and DDR SDRAM has only one so besides all the electrical incompatibilities it won't physically fit.
Explain different types of ram?
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.
What kind of RAM do you install in a laptop?
depending on the laptop, it could be DDR, DDR2 or DDR3. But the form factor is all the same. Its all SO-DIMM memory
What are all forms of RAM?
SRAM DRAM SDRAM XRAM is not a form of RAM.
Can you subsitute unbuffered SDRAM module?
Ive just been studying about all the forms of SDRAM etc, and when it came to buffered/registered DRAM I found out that normal PC's usually have upto 4 slots for SDRAM, any more gives producers of motherboards lots of electrical problems. So to solve the problem of systems that require maybe 6, 8 slots, they require special DRAM, such as buffered/registered SDRAM. This SDRAM has a special buffering chip on the address bus added to it to work as an intermediary between SDRAM & North Bridge. To take advantage of buffered SDRAM, the motherboard and brige must be able to support SDRAM. Slots requiring buffered DIMMs are keyed differently then those requiring unbuffered DIMMS so it will be physically not possible to install these DIMMs into the slots short of shaving the key. Electrically, possibly, but you have to remember that the register drives the addressing unit on the DIMM and the bridge will likely not be designed to accomidate the drain required to directly drive the memory chips on the address bus and as such may cause instability if it works at all. In addition there is a single clockcycle delay from when the address is written to the registers to when the address is propigated to the memory, in such timing errors could arrise from a bridge expecting that delay. - you cannot use unbuffered SDRAM on a motherboard that supports buffered memory, because the notches on buffered DIMMS are in different positions than for unbuffered DIMMS.
What type of memory does an Intel Pentium 4 motherboard support?
Depending on its age, either SDR SDRAM, DDR, or DDR2 RAM.
What is the difference between SDRAM and DIMM because I want to buy a new computer and it says it takes DDR2 SDRAM but when i search he net i find DIMMs. Will the DIMM work?
You're computer will require a "DDR2 SDRAM DIMM". DDR2 SDRAM is the type of memory you are after, it is also a DIMM. Most modern memory are all DIMM's (Dual inline memory module), much older ram were SIMMS (single ingline memory module). DIMM refers more to the physical make up of the module (DIMMS have contacts on both sides of the module). So any DDR2 SDRAM that you buy IS a dimm. You may want to look at the wikipedia page about DDR2 SDRAM at http://en.wikipedia.org/wiki/DDR2_SDRAM
What chips go to your butt bigger?
All of them except sun chips
Can potato chips run on cars?
Potato chips can't run at all.
Do all new cell phones have GPS tracking chips?
Not all cell phones have GPS tracking chips. The only ones that have tracking chips are the smart phones, such as an iphone.
