I have a GA8ST800 board and I have have been running 256MB ram at 266MHz. I fitted a 512MB ram at 400 MHz. The two together would work fine, even though they were running at 266MHz. I bought two 512MB 400MHz ram modules, and when I run these two by themselves or with the other 512MB ram, my windows becomes unstable and I have a couple of things picking up errors, and wanting to close. The old 512MB by itself, then the problem has gone. It is my ram been two fast,as the board says that my ram must be 333MHz. Cheers Denzil

if the memory supports those frequencies, in most cases it would work, now depending if the board is proprietary, like dell or some hp's, then you may run into compatibility issues. you can find this information from the manufactures website.

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.

Hello, The Motherboard's specifications mention that it uses DDR Ram, while the FSB runs at 400MHz. That means that any kind of DDR memory will work up to the maximum of 2 GB (it has 2 slots, so it's up to the max of 2x1GB DDR sticks).
There's no issue with the speed, actually the faster you can get the better results you will have. Try looking for 1GB DDR 400MHz (preferably two of them, if you want to max out the capacity and since it's kind of cheap to do so).
The one you tried and didn't work, might be due to a faulty RAM module.

DDR1 400mhz 4200FSB

Hey Richard, your board has 2 x 184 DIMM slots, that are both usable, with a maximum capacity of 2GB, supported RAM types are 333MHz, and 266MHz..

Hope this is what you are looking for,

Cheers,


Memory Type DDR SDRAM Number of Memory Slots 2 x 184 Pin DIMMs Supported RAM speeds 333 MHz • 266 MHz Max Supported RAM 2 GB Memory Type DDR SDRAM Number of Memory Slots 2 x 184 Pin DIMMs Supported RAM speeds 333 MHz • 266 MHz Max Supported RAM 2 GB DDR SDRAM Number of Memory Slots 2 x 184 Pin DIMMs Supported RAM speeds 333 MHz • 266 MHz Max Supported RAM 2 GB

From the Asus spec site: Memory Memory Type DDR SDRAM Number of Memory Slots 4 x 184 Pin DIMMs Supported RAM speeds 400 MHz • 333 MHz • 266 MHz Max Supported RAM 4 GB

Memory Memory Type DDR SDRAM Number of Memory Slots 4 x 184 Pin DIMMs Supported RAM speeds 400 MHz • 333 MHz • 266 MHz Max Supported RAM 4 GB DDR SDRAM 400; 333; 266mhz
4 GB max 4x1024 184pin
Hope this helps.

Ok, so you just got more Hard disk space, or a new bigger Hard disk. Of course you need t upgrade the Ram memory. This computer supports Ram memory up to 1 Gb with a max frequency of 266Mhz. You probably have 256Mb or 512Mb of Ram Memory. You can go to any computer store and get it upgraded. It shouldn't be expensive. But don't forget :

Use this tyoe of RAM: DDR SDRAM (266 MHz), Upgradeable to 1GB

By the way, even after the upgrade, I advise you to run a Defrag of your Hard Disk and clean all your temp files.
There is a free and easy software to clean all temp and internet temp files: Ccleaner.

Remove the 256mb memory and insert the 512mb memory in slot1 and see whether it works. Please note that the memory needs to be in pairs.

I think the GX260 is mini tower has two different moles
1) PC3200 compatible with memory - 184 Pin DDR3200 400MHz

2) PC2700 compatible with memory -184 Pin DDR2700 333MHz

Please enter the service tag on dell.com and find the manual and the right memory for your PC

All the best!

You can use only DDR 266Mhz dimms maximum upto 2 GB. i.e. one DIMMS of 266Mhz of 2GB or two of 1GB each. For more details read bellow:


System Memory Features

• The D845GBV board provide the following memory features:
• 
  Two DIMM sockets supporting 2.5 V (only) 184-pin 200/266 MHz Double Data Rate (DDR) SDRAM DIMMs with gold-plated contacts
  Unbuffered non-ECC DIMMs only
  Maximum total system memory: 2 GB; minimum total system memory: 64 MB
  Serial Presence Detect (SPD) DIMMs only
  Suspend to RAM
• 
  CAUTION:
  Do not use ECC DIMMs with the D845GBV board. Using ECC DIMMs could damage the Desktop Board.
  

For more details click here.

Thanks
Iqbal

Hi, Normally yes. It is the motherboard that will limit the memory speed. Shifting down from 400 to 266 should not be a problem. However, I have run across instances where the memory is cut in half (dunno why), but very rare. Good luck and kind regards.