How many pins do the memory cards on this board have as I wish to upgrade my memory

NO ADDON Video Card Slot On Board--ADD MAX DDR MEMORY TO SYSTEM--INCREASE MEMORY SHARE. There are other slots on board, but video card in them will not be good as onboard. Your system is getting pretty old for any upgrades. Was not really worth upgrade when new.

You can upgrade you memory to 2 x 512MB DDR PC2700 333MHz, and install pretty much any size 2.5" IDE hard drive you wish. Installing Vista will make this machine very very slow. Windows 7 would be better as it uses less resources. Ideally XP Pro would be better suited based on this boards specifications.

If your motherboard supports ECC, and you can afford the much-higher cost of ECC RAM, then buying/using ECC is "best".

Note that "buffered" memory is much slower than "unbuffered" memory.

i would like to inform you that *********** board supports upto 4 gb ram and 2 gb in 2 slots will be the best combination but depends on the OS you are using if its 32 bit XP or Vista it wont accept more than 3 gb so if you wish to use your system in full throttle mode upgrade you r OS to 64 bit XP or Vista and enjoy all 4gb standards that you actually wish to but even 3 gb is like playing with wild fire that will be really too fast processing speed and thrilling performance that you expect.

thanks and regards
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I don't think that that motherboard will accomodate the DDR800 you probably need a DDR333 or DDR400.
Calling the manufacturer support will render better information because they made the board. The memory you refer to may not fit the slot for this particular motherboard.

My friend you can add RAM on your VGA by purchasing another Higher Video card  RAM. you can buy 512mb (265 - 512 bit) VGA Card to increase your VGA RAM. 

maximum memory is1GB for your motherboard, you can only install 2 x 512MB, sorry.
Refer to this page: Hp site

Alex

sex just change the mother board old mother board get slower by time. so' buy new core 2 duo or core 2 quad wich I am using.

Your board Support 168-pin SDRAM DIMM and 184-pin DDR DIMM (Can't Use DIMM & DDR SDRAM memory Together).
I would run the 184-pin DDR. Supports PC1600/PC2100 DDR DRAM up to 2BG Max. Since you have four memory slots 2x512mb of DDR PC2100 = 1GB would be plenty. You will notice programs load faster & games run smoother. Personally, 2Gb. may help but you will not see the difference. To see a difference it is not all about memory. Mb bus speed, CPU, chipset & speed of video memory all play a part with regards to Pc overall speed. You can download your manual here.: http://www.jetway.com.tw/oldweb/evisn/download/manual/index1.htm
You can download the specs of your board here.:
http://www.jetway.com.tw/oldweb/evisn/product/amd/v266b/v266b.htm
And below is a link for some good ram.:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=302039&CatId=548
This should all help you decide, best wishes!
Please vote.....

Not a realistic proposition. So many other parts of the Mother board are 'tuned' the a specific processor Big Name manufacturer- like Sony/Dell etc., tend to design custom MoBos and processors as an integrated unit so the -upgrades are limited to memory or PCI cards etc.