Is it better performance-wise to have two sticks of RAM instead of one?
1459248
If you are asking something akin to performance with a single 8 gig stick versus two 4 gig sticks, it shouldn't really matter. You could do a general Google search on the subject to see if there are any numbers out there at all, but the only way to know if the DS81 differs in any meaningful way from the average machine would be specific testing. I doubt that any has been done.
1789731
It should be fine, even if you mix and match ram from different vendors it will work fine if the settings are all the same.
1589003
I am also using 8gb of ram. I have some low profile corsair vengeance (2x4gb @ 1600 mhz) and haven't had any problems with it. I only got the low profile because I didn't want to take any chances with space. Hope this helps :-)
629247
I'm with Jeff S....you are going to want to put memory in pairs, so I would only recommend 12gb if you find 2x6GB chips. A 16GB kit (2x8GB chips) are pretty reasonably priced at this point, so that would by my recommendation.
1726913
No. If you install this RAM with out replacing your 4 GB, it will bottleneck.
2240258
Memory becomes a fanboy issue, I've never had ram fail, and have used Corsair, Crucial, Patriot, Mushkin, Kingston ... currently I'm running 4 sticks of Patriot IEM Viper 3 @2133mhz
2002477
According to other answers, It will support up to 8GB of RAM; however, I'm not sure how it's presently configured. My guess would be 2-2GB sticks, in which case you might need to replace them both if you want to go the max.
1585335
Each stick is 2 GB for a total of 4 GB, if your motherboard supports dual channel memory then yes, if it don't then you would just run single channel memory but use both sticks, I hope I didn't confuse you, either way you can use these memory sticks if your motherboard supports it, be sure to check the voltage as some motherboards are not very flexible about it.
387563
Yes but you need two of them. Try Crucial 4GB Kit (2GBx2) DDR2 667MHz (PC2-5300) CL5 SODIMM 200-Pin Notebook Memory Modules CT2KIT25664AC667 / CT2CP25664AC667
1622145
No. You can install one or two. On my wife's computer she had 1 gig of RAM (2 x 500mb). I replaced one of the 500 mb with a 2 gig. She now has 2.5 gigs of RAM.
133446
If it comes with two sticks of ram, 1GB each, then going to 4GB would be 2 sticks of 2GB each. Should be the same power. If anything power use may decrease due to more ram available and windows not having to page stuff to the spinning mechanical (power hungry) hard disk.
442092
According to the manual, it looks like you can, as long as you pair the memory modules correctly(new ones together, old ones together), but I am not sure how that will affect performance. For an extra $40 I bought the extra 1 GB so they are all the same. I would refer to your manual for more information.
1929393
It's not a stupid question and yes, you guessed it, they are matched for "Dual Channel" functionality. You might get two individual sticks to work in Dual Channel configuration, but you can get instability or memory errors if the sticks are not identical and equally matched. Two sticks of the same memory may have slightly different speeds and other specs which can cause instability and problems. Also, some motherboards may even automatically revert to single-channel mode if they detect mismatched memory.
1553772
As to your system, these should work just fine. You basically have the same HP as mine. Technically I believe you could go even higher than the 4 GB's listed here. When I got mine I noticed a slight increase in speed but nothing worth really mentioning. Without knowing what you want to achieve can't say how much these will help. Also you didn't mention how much RAM you currently have. If your currently running 1GB per stick, will make a big difference. If you currently have 2 per, not so much. And if you already have 4 per, you won't see any change. But again, you should be able to run even higher than these 4's.
46001
Hello, Yes I believe so, just have to get 2 sticks of 8 Gig because this mother board has only 2 RAM slots.
469000
Yes you can install two of these however if it is a 32 bit system it will only show it using 3.75 GB of the ram. If 64 bit system show using all 4 GB
1241424
It will depend on how many slots your machine has available for RAM. Look in your machine to see if you have an empty slot. If you do, then you can just put more RAM in the empty slot. If all of the slots are taken, you will want to replace one of the smaller sticks of RAM with a larger one.