i have a dimension e520 tower with wxp. id like to upgrade but keep the tower because it has the card readers. is it possible? Tags: Windows XP Dimension Last response: April 8, 2014 5:20 PM in Windows XP Share detaillen April 8, 2014 5:05:47 PM Need help with upgrade More about : dimension e520 tower wxp upgrade tower card readers Reply to detaillen k1114 April 8, 2014 5:20:08 PM No because it's btx and that form factor was short lived during the time the e520 came out. No one even manufacturers anything btx for years now. Card readers are relatively cheap ($10 for multi slot ones) and widely available. Reply to k1114 m 0 l Ask the community Post an answer Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !