Forumula II and RAM issue. Tags: Memory RAM Last response: September 13, 2011 2:51 PM in Memory Share BikerJake September 12, 2011 9:48:21 PM Hi all, right this might sound like a noob question, I am new to the "Custom PC" as such, been about 9 years since I used a home made rig.... What I want to find out is if I can use my old RAM from my old PC in my "New" Rig computer.... This is the specs of my new machine. AMD X4 2.8hhz (Black Edition) Crosshair Formula II Mobo 4GB of Crucial PC2-6400 (400mhz) RAM 2x 9800GT GPU 750W p/s I have two spare 1.5GB DDR2 PC2-6400 (800MHz) RAM from my old ASUS Aspire X1301 and two free slots on my Formula 2 mobo, QUESTION is::: Can I put this into my system to make it to 7GB RAM?? 2nd Question is: Though I have 4GB installed, it only allows me to use 3GB? Why could this be? and IF I put this extra 3GB in would it work or would it be capped like it is now? Thanks in advance guys! More about : forumula ram issue itzdanielp a b } Memory September 12, 2011 10:36:24 PM 1st. Asus aspire = Laptop = different physical RAM size. You can't put the chips into the socket. 2nd. The reason you are capped at 3GB is because you are using a 32 bit operating system, which can not address more than 3GB. Even if you put more memory in, you would still be capped. You would need to upgrade to a 64bit Operating system (XP 64bit, Win 7 64bit) if you wanted more than 3GB RAM BikerJake September 13, 2011 5:57:33 AM Hi, Thanks for the reply!, Just checked my OS and it seems it has 32bit.... strange. I have windows 7 64bit, If i upgrade this will it keep my programs etc? Also the aspire AX1301 is a "mini" PC tower with your usual sized ram.... Mayb it was 5700?? My mistake.. I just brought this new/used rig from ebay and want to buff it up a bit but keep all the top games that are installed.. Can't find your answer ? Ask ! Get the answer itzdanielp a b } Memory September 13, 2011 2:51:44 PM To be honest I am not sure what will happen if you upgrade the OS. It shouldn't affect it, but I can't say for sure. My bad on the Acer. I didn't actually look at the model (I know, I know...) and figured it was a notebook. If the chips fit in the slots, then yes you can absolutely use them Can't find your answer ? Ask ! Publish Related resources SolvedBrand new ASUS R9 280 DirectCU II TOP 3GB Monitor issue Forum SolvedAsus R9 290 Direct CU II memory clock issue at idle Forum SolvedAMD Athlon II X4 640 possibly bad? But unsure if it is Software issue. Forum SolvedAMD FX 8350 + Asus R9 290 DirectCU II + 8gb ram is ok ? Is there any bottloneck? Forum SolvedRam fitting issue Forum SolvedRam issue on a new build Forum SolvedZotac Zbox RAM issue Forum Solvedasus gtx 680 directcu ii top with haf x side panel issue Forum SolvedIssue with RAM on 970A-UD3P failing to boot. Forum SolvedWindows 7 RAM issue Forum Solved1866 Ram on Asus Z97-Pro XMP issue Forum SolvedDoes my Phenom II X3 Support DDR3 RAM? Forum SolvedAsus a88xm-a ram issue Forum SolvedPhenom II x4 965 with 2133Mhz RAM? Forum SolvedASUS GeForce® GTX 770 DirectCU II FPS issue Forum SolvedASUS RAMPAGE II GENE: Best RAM Configuration Forum SolvedHyperEVO 212 RAM Issue with 970a-ud3p and tower ? Forum SolvedPlease help! Mobo + RAM issue! Forum Ram issues (maybe) on an Asus Rampage II extreme Forum Solved[NAS Synology DS1513+] RAM and boot issue Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !