I occasionally come across other websites that have useful information on the HP t5720 These are collected in this section. If you find others please let me know (use the link at the bottom of the page).
An interesting article in upgrading a t5720 to turn it into a light gaming machine and/or HTPC (Home Theatre PC). Covers upgrading the CPU, adding a fan and graphics card.
A posting from S0ren on using the t5720 as a gaming machine for old DOS/Windows games such as Duke Nukem 3D. Uses DOS6.0 and Windows 98.
Any comments? email me. Added 2012 Last update November 2016