Dell e 521 adding 2-1 gb of memory will this work? Tags: Configuration Dell Memory Windows XP Last response: August 30, 2010 5:18 AM in Windows XP Share willy ray August 29, 2010 9:31:24 PM Hello, i have 2 memory sticks for my dell e 521.first one seral no.kvr667d2/1gr. the other one. seral no.kvr533/d2n4/1g. will this work as a pair? More about : dell 521 adding memory work aford10 a b } Memory August 30, 2010 5:18:37 AM They have different speeds and timings. They may work together, but the DDR2 667 will downclock to 533. You may even need to adjust the timings and voltages in the BIOS. Can't find your answer ? Ask ! Publish Related resources: ForumNew memory will not work in Dell E521 , but SHOULD. help? ForumExtra Memory for Dell Dimension E521 ForumDell E521 - New to building/upgrading systems systems ForumOld Dell E521 take a HD 6570 1 GB ? ForumDell E521 memory upgrade choice... ForumSimple and Free Guide to Removing Malware ForumE521 with 8 GB (4GBx2) PC2-6400 (800mhz) Possible? ForumDell E521 - Questions about video card upgrades for this machine. ForumDell E521 - AMD Athlon 64 x2 dual-core 5000+ ForumDell Dimension E521 video card problem/update Forumupgrading a Dell Dimesion E521 CPU question ForumNeed new PSU for Dell e521 ForumReplacement for Geforce 7300 LE on Dell Dimension E521 ForumOld Dimension E521 - trying to upgrade video for son ForumDell e521 cpu upgrade to i5 or i7 ForumHELP!!! Please with Windows XP ForumDell xps 720 boots only in safe mode...any ideas? ForumCheck for dell motherboard upgrade ForumAntena wi fi for dell latitude pp01xc840 ForumThis type of file can harm your computer if it contains malicious code More resources Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !