Are all DDr SDram d same? coz i have a DDR SDRAM pc2100 and

Your mainboard PVCLE266M-L does not support the DDR 400 Mhz RAM (PC3200) ie @ 400Mhz frequency. For the memory specfications it support "2 x 184-pin DIMM sockets support two2.5V DDR SDRAMs (DDR266)" maximium is 2GB or DDR PC2100 ie @ 266Mhz frequency.

PC133 is the SDRAM so it will not fit the DDR RAM slot.

You should not use the 400MhzDDR memory RAM on a Mainboard with a FSB(Front Side Bus) of 133 Mhz and the 400Mhz DDR Ram is not compatible with the mainboard.

Get the DDR 266 with double side chipset i.e.DDR1 RAM (DDR PC2100) RAM and it will be compatible with your mainboard. Sometimes single side chipset DDR1 RAM will not work on older mainboard.

Hope it helps.

It should this is what dell has for the pc listed on the website
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&sku=A0740429

SO- DIMM 512 MB 333 Mhz / 200 PIN PC2700 64Mx8



DDR SDRAM memory has 184 pins, where as SDRAM has 168 pins. DDR SDRAM Memory is a new type of SDRAM that is able to double the read / write speed of the previous generation of SDRAM memory. There are currently, PC2100 (DDR266), PC2700 (DDR333), PC3200 (DDR400), PC4200 (DDR533) These DIMMs are 184 Pin in size and are not interchangeable with older SDRAM modules.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Consider updating your motherboard bios.

http://www.asrock.com/mb/download.asp?Model=K7VT2&o=BIOS

Also make sure that your memory is correct for this system:


- Max. capacity of system memory: 2GB DDR or 2GB SDRAM
- DDR x 2, DDR266/200 non-ECC, un-buffered memory
- SDRAM x 2, PC133/100 non-ECC, un-buffered memory

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.

Manufacturer Specifications - EPoX EP-4BDA533I Number of Slots:
Slot 1
Slot 2
Each memory slot can hold DDR PC2700,DDR PC3200 with a maximum of 1GB per slot.*
*Not to exceed manufacturer supported memory.

• 184-pin DIMM Banking: 2 (2 banks of 1)
• Chipset: Intel 845D
• Error Detection Support: ECC and non-ECC
• Graphics Support: AGP 4X
• Max Component Density: 512Mb
• Max Unbuffered DDR SDRAM: 2048MB
• Module Types Supported: Unbuffered only
• Supported DRAM Types: DDR SDRAM only
• USB Support: 1.x Compliant

Q: What memory goes into my computer, and will a faster speed be backward-compatible?
A: DDR memory with support for DDR PC2700,DDR PC3200 speeds.
Because DDR memory is backward-compatible, you can safely upgrade your system with any of the guaranteed-compatible DDR speeds listed below, even if your manual calls for PC1600 or PC2100 speeds.
Q: How much memory can my computer handle?
A: 2048MB.
Adding the maximum amount of memory will improve performance and help extend the useful life of your system as you run increasingly demanding software applications in the future.
Q: Do I have to install matching pairs?
A: No.
No, you can install modules one at a time, and you can mix different densities of modules in your computer. But if your computer supports dual-channel memory configurations, you should install in identical pairs (preferably in kits) for optimal performance.
Q: Does my computer support dual-channel memory?
A: No.
Your system does not support dual channel.
Q: Does my computer support ECC memory?
A: Yes.
Your system supports ECC. You can put non-ECC modules into an ECC system, but be sure not to mix ECC and non-ECC modules within a system. Install the same type of modules that are already in your system.

your motherboard uses DDR1 SDRAM PC2100 max. as stated on their website:
http://www.biostar-usa.com/mbdetails.asp?model=u8668+d
you cannont put DDR2, but you can expand up to 2GB

Hope this helps
Alex
www.CAS411.com

pls see ur specs here

http://www.baber.com/motherboards/asus/asus_p4xp-x.htm

ur board only support following RAM specs u cannot use DDR400
Memory:

• 2 x 168-pin SDR DIMM Sockets support max. 2GB PC133/PC100 non-ECC SDRAM memory
• 2 x 184-pin DDR DIMM Sockets support max. 2GB PC2100/PC1600 non-ECC DDR SDRAM

pls rate me FIXYA for this help if u like

2 DDR DIMM Sockets and 2 DIMM sockets support (can not be used simultaneously)
Two 184-pin 2.5V DDR SDRAM (DDR266/DDR200) or
Two 168-pin 3.3V SDRAM (PC133/PC100)
Maximum: 2GB

No SDRAM is single data ram, with 2 slots in the bottom and DDR is double data ram, with one slot at the bottom.