Upgrading RAM

[Aztec_in]

Hi everybody,

My PC configuration is Pentium 4 1.8 Ghz, Intel 845GVAD2 motherboard with onboard graphics and sound and 40 GB HDD. I have one 256 MB RAM module (266 Mhz DDR RAM, PC 2100) installed. Now, I want to upgrade my RAM to 512 MB and I am looking for a branded RAM. My mother board supports only 266 Mhz DDR RAM, so what RAM should I buy and how much will it cost?

[Anand_RF]

I don't know cost, and I'm assuming you wish to buy another 256 mb RAM stick instead of a new 512 stick.
If that's the case, the new RAM you buy should be ideally the same speed, frequency, (if possible brand too) as the existing one.

[Mayur]

If your motherboard have 2 slots try to sell out old 256 and buy a new 512MB stick
if you plan to update your motherboard in nere future go for another 256,
as you wont use 266Mhz RAM on new motherboard

[deathvirus_me]

Well .. u can stick in any DDR ram .. only limit would be that , say if u use ddr33 , it'll be used as ddr266 ...

Also .. see if u can sell of the 256 MB and get a brand new stick ..

[samrulez]

^^
yes........sell away the old stick and get a new 333MHz 512MB stick should cost u 2k ......but it will run @266MHz and not @333MHz..

[gary4gar]

yes sell ur ram and get a new one also u could get more money by selling so u can buy a 1gb ram

[Aztec_in]

Thanks guys for your help, I have decided to go for 512 MB of RAM.
I contacted a couple of vendors selling 400 MHz RAM and they say that 400 MHz won't run on my mobo.
But, from the above posts I understand that it should run at 266 MHz, am I correct in my thinking?

[dOm1naTOr]

yes u can get a 400mhz one nd should defenitely run.