Memory Tags: Memory BIOS Windows XP Last response: February 4, 2013 5:19 PM in Memory Share Interested_44 February 4, 2013 4:43:59 PM What's the difference between single rank and dual rank memory? Which is better? I mixed 1Rx and 2Rx - 4 1GB sticks. BIOS shows 4GB, XP shows 3.25GB. More about : memory rgd1101 a b } Memory February 4, 2013 5:16:24 PM not sure what this rank you talking about. but if the total is 4GB and bios said 4GB and XP only show 3.25GB, are you using 64bits XP or just 32Bits? 32 Bits can only use that much. treefrog07 a b } Memory February 4, 2013 5:19:53 PM ^+1 Can't find your answer ? Ask ! Publish Related resources: ForumTwo different memory speed in my laptop ForumMemory Management, Bad pool head, and Kmode exception not handled bsod ForumAsus hd 6670 2gb ddr3 memory clock is showing 900 why ForumCPU vs Memory ForumCorsair vengeance 1600 memory not working in biostar TXZ68K+ ForumMy physical memory usage is so high ForumHow to increase memory in c drive ForumM5A78L-M/USB3 Max Memory ForumSimpler memory question.. ForumHow to retrive the hide files from memory card virus infected ForumBad memory or dimm slot? ForumMemory Card Needs To Be Formatted By My PC ForumHow to recover photos from my SD memory card after accidentally format ForumI have 16GB of Ram. still getting "System low on memory error." ForumHELP! Broken DDR3 Memory slot lever ForumP7h57, i5-760 and 2x8gb More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !