Recommended 4/12/2007 C103, A03 327944 320 KB 12386 1 32 205043 0 R153788 HLDS - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=205043 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=12386&libid=32&releaseid=R153788&vercnt=1&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Optional 7/5/2007 B110, A04 720896 704 KB 12385 2 32 215046 0 R160612 HLDS - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=215046 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=12385&libid=32&releaseid=R160612&vercnt=2&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 6/25/2008 2D15, A01 1458267 1 MB 15063 1 32 261700 0 R190646 PBDS - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=261700 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=15063&libid=32&releaseid=R190646&vercnt=1&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Optional 4/28/2008 ND12, A01 895873 874 KB 13820 1 32 253109 0 R185338 PBDS - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=253109 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=13820&libid=32&releaseid=R185338&vercnt=1&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Optional 12/4/2007 ODNK, A05 711517 694 KB 11993 3 32 236090 0 R173719 Philips - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=236090 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=11993&libid=32&releaseid=R173719&vercnt=3&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Urgent 4/25/2007 KDS3, A01 825344 806 KB 12938 1 32 205298 0 R153991 Sony - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=205298 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=12938&libid=32&releaseid=R153991&vercnt=1&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 1/16/2008 06082007-32,A01-32 2023376 1 MB 9905 3 32 240264 0 R176587 TEAC - Driver /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=240264 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=9905&libid=32&releaseid=R176587&vercnt=3&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 1/16/2008 4.08, A03 1316672 1 MB 9905 2 32 240271 0 R176603 TEAC - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=240271 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=9905&libid=32&releaseid=R176603&vercnt=2&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 4/5/2007 D500, A03 1007424 983 KB 13193 2 32 204082 0 R152871 TSST - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=204082 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=13193&libid=32&releaseid=R152871&vercnt=2&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 1/25/2007 DE04, A04 875944 855 KB 11684 1 32 182129 0 R136549 TSST - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=182129 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=11684&libid=32&releaseid=R136549&vercnt=1&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 7/12/2009 DW10, A08 1056184 1 MB 13816 5 32 325635 0 R227077 TSST - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=325635 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=13816&libid=32&releaseid=R227077&vercnt=5&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1 Recommended 10/20/2008 D400, A03 950704 928 KB 13706 2 32 280632 0 R201947 TSST - Firmware /support/topics/global.aspx/support/downloads/en/downloads_splash?c=us&cs=19&l=en&s=dhs&~mode=popup&file=280632 http://support.dell.com/support/downloads/format.aspx?c=us&cs=19&l=en&s=dhs&deviceid=13706&libid=32&releaseid=R201947&vercnt=2&formatcnt=0&SystemID=DIM_P4_E521&servicetag=&os=WW1&osl=en&catid=-1&dateid=-1&typeid=-1&formatid=-1&impid=-1 1