Solved HP dc7800 Tags: Memory Hewlett Packard Last response: April 22, 2012 11:57 PM in Memory Share Idontno April 8, 2012 9:39:42 PM Hello wise stewards of computer knowledge. I would please like to know for a HP dc7800 cmt Intel Core Duo E6750 @2.66GHz(will upgrade 1GBx4 Windows XP Pro 32 bit Some ram used for graphic card? Which ram stick is faster? 1.0 GB, 667 MHz, CL=5, PC2-5300 DDR2-SDRAM DIMM #398038-001 or a 1.0 GB, 800 MHz, CL=6, PC2-6400 DDR2-SDRAM DIMM #418951-001 Thank you. Idontno More about : dc7800 Best solution o1die a c 128 } Memory April 8, 2012 9:53:20 PM Share The 6400 is slightly faster, but only if your board supports it. Some older boards run at pc5300 speed, but the faster ram may work at the slower speed. Idontno April 8, 2012 10:06:10 PM o1die said:The 6400 is slightly faster, but only if your board supports it. Some older boards run at pc5300 speed, but the faster ram may work at the slower speed. Thank you ! I bought an old PC to run my Xp programs until XP goes the way of all good things. Thank you very much! matching parts is a mystery to me,I don't want to mess up. Computers are delicate creatures rubbing your socks on the carpet can kill them? Jim Can't find your answer ? Ask ! Get the answer Idontno April 22, 2012 11:57:38 PM Best answer selected by Idontno. Can't find your answer ? Ask ! Publish Related resources Hp Compaq dc7800 + GTX 650 Forum No sound from rear audio out on HP DC7800 cmt Forum Graphics Card For HP DC7800 Core 2 Duo Forum Upgrade HP dc7800 Forum To fit my gtx 550 ti card in my dc7800 hp Forum Can I put 16GB in this HP system? Forum Can i use ddr3 ram in a ddr2 machine hp 7800 Forum Hp network driver for dc7800p Forum BIOS Update Forum Is a 2 x Xeon 3.6 with a gefoce video card and 4gb ecc ram fast enough for a hom Forum Im looking for an opinion on which PC I should buy Forum Can i mix DDR2 and DDR3 ram Forum Trouble Installing Vista on a Wiped HDD Forum Inno3d nvida gt440 driver stops working error, plz help??? Forum Which is better memory Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !