1 x Optical S/PDIF Out port (on select configurations).
Find the jumper labeled CLEAR_CMOS . Move it from pins 2-3 over to pins 1-2 for roughly 10 seconds, and then place it back where it was before booting up.
If you need help with a specific part of the system, tell me: What you are trying to install
Caution: Do not change jumper settings while the computer is turned on to avoid damage . pegatron motherboard m2n78la manual top
2 × 240-pin DDR2 DIMM sockets. It supports dual-channel DDR2 800/660 MHz non-ECC unbuffered memory, upgradeable up to 4 GB total (or 8 GB depending on the specific HP BIOS version).
Indicates if the computer is turned on. Pin 2 is Positive (+), Pin 4 is Negative (-). 5. Troubleshooting & Maintenance
Move the jumper plastic cap from the default pins (Normal operation) to pins 2-3 (Clear position). Wait roughly 10 to 15 seconds. Return the jumper cap back to pins 1-2 . 1 x Optical S/PDIF Out port (on select configurations)
Not the generic one—the top manual. Pegatron, like many OEMs, often buried engineering schematics and JTAG pinouts in a restricted "top" tier of their documentation service portal, accessible only to authorized repair centers. Her usual archive of PDFs had nothing beyond the basic jumper layout.
The Pegatron M2N78-LA is a widely deployed OEM motherboard found in numerous HP and Compaq desktop computers manufactured around 2009 and 2010. Because Pegatron produced this board specifically for pre-built Hewlett-Packard systems, finding a standalone retail manual can be challenging. HP officially refers to this motherboard by its internal code names: or Violet-GL8E .
Note: This motherboard does not feature an IDE connector for older PATA hard drives or optical drives. Front Panel Header (F_PANEL) Pinout If you need help with a specific part
1x PCI Express x16 (Gen 2.0) for dedicated video cards
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What your computer is showing
6 × Audio ports (Line-in, Line-out, Microphone, Center/Subwoofer, Rear speaker, Side speaker) Internal Connectors & Jumpers
For users seeking to repair, upgrade, or maintain these systems, finding the official or reliable, consolidated specifications is critical. Pegatron M2N78-LA (Violet6) Specifications Based on the Theretroweb M2N78-LA documentation , the motherboard, specifically the Go to product viewer dialog for this item. revision, features the following technical specifications: Manufacturer: Pegatron Motherboard Name: Go to product viewer dialog for this item. HP/Compaq Name: Violet6-GL8E Form Factor: Micro-ATX (24.4 cm x 24.4 cm) Chipset: NVIDIA GeForce 9100 Front-side Bus Speed: 5200MT/s (5.2 GT/s) Socket Type: AM3 (Supports AMD Phenom II/Athlon II) 2. Processor and Memory Upgrade Information
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