These boards are the definition of "office workhorse." Designed for long-term reliability in enterprise environments, they prioritize stability over performance or aesthetics.
: Vietnamese and Portuguese repair communities have also discussed E93839 schematics, indicating the global reach of this hardware platform. E93839 Motherboard Schematic
If you cannot find the PDF schematic, buying a donor board with the same E93839 number is the safest path. Sellers on eBay or specialized HDD part sites often list boards by the exact PCB number. Compare the revision number, the main controller chip, and the position of the power jack. These boards are the definition of "office workhorse
| Brand | Model Example | Internal Bridge Chip | |-------|---------------|----------------------| | Seagate | Expansion Desktop (3TB) | ASM1051 / 1053 | | WD (Western Digital) | My Book Essential | USB 3.0 proprietary | | LaCie | Porsche Design | JMicron JMS567 | | Samsung | M3 Portable | JMicron JMS539 | Sellers on eBay or specialized HDD part sites
Because "E93839" is used across multiple generations of hardware, you must find the secondary alphanumeric code (like ) to identify your specific specs. Common Model Code Associated PC Model Socket Type RAM Support Dell OptiPlex 760 / 780 DDR3 (Up to 8GB/16GB) Dell OptiPlex 790 DDR3 (Up to 16GB) Dell OptiPlex 7010 DDR3 (Up to 32GB) Dell OptiPlex 9020 / 7020 DDR3 (Up to 32GB) The Search for Schematics
for the front panel. In these cases, Pin 14 and 15 typically act as the Power Switch. HP Support Community 🔋 BIOS & Password Reset (Clear CMOS)