5184-9644 HP Mew-am Mercury Gat-810e Motherboard Rev 2.1 Socket-Pga370 (Refurbished)
459163-002 HP System Board (Motherboard) G33 Socket LGA775 for DX2400 Microtower Business Desktop PC (Refurbished)
8GB KIT 4X 2GB for HP Compaq DX Series Desktop dx2400 dx2480 dx2810 dx7300 Microtower dx7300 Slim Tower dx7500 Business PC dx7500 Small Form Factor DIMM DDR2 Non-ECC PC2-6400 800MHz RAM Memory
HP COMPAQ DX2400 MT Motherboard with Intel Pentium Dual Core @ 2.50GHz Processor $22.99 - PicClick
F Panel Pin Diagram for DX2400 SOLVED - HP Support Community - 7170199
Refurbished: Asus Ipibl-Lb Microatx System Board For Dx2400 Series Desktop Pc - Newegg.com
HP dx2400 iPiBL-LB Intel G33 Motherboard - Newegg.com
HP Compaq Desktop PC dx2400(KA538UT#ABA) Pentium Dual Core E2200 (2.20GHz) 1GB DDR2 80GB HDD Windows Vista Business / XP Professional downgrade - Newegg.com