The marking is a regulatory or manufacturing identifier (often linked to the manufacturer
) rather than a specific HP model name. Because HP uses this marking across various proprietary boards, its specific configuration depends on which computer it was pulled from. Based on common hardware listings, the
marking is most frequently associated with the following components and systems: Commonly Associated Systems HP Omni 100 All-in-One PC
: Specifically used for the side-key/button board (Part Number: HP TouchSmart 300 Series
: Associated with the USB, Audio, and Ethernet daughterboards. HP Pavilion TouchSmart 23-f
: Used in daughterboards or side-panel boards for this All-in-One series. Typical Technical Specifications (Pegatron/HP Boards)
While the marking appears on different parts, motherboards bearing similar Pegatron identifiers for HP often feature:
HP Desktop PCs - Motherboard Specifications, Row | undefined
(also identified by part numbers like 737339-001 ) is an OEM motherboard typically found in older HP Pavilion series desktop PCs. It is designed for casual computing and basic productivity rather than high-performance gaming or heavy professional workloads. Key Specifications Socket & CPU Support : Features an
(Socket H2), which supports 2nd and 3rd Generation Intel Core processors (Sandy Bridge and Ivy Bridge). : Typically includes two RAM slots
. While some listings suggest DDR2, most HP boards from this era use Form Factor : Generally follows a or customized HP layout. : Includes standard connectivity such as , and multiple USB ports.
: Often features a mix of legacy and modern slots, including for dedicated graphics and standard PCI slots. HP Support Community Performance Review Reliability
: As a board "pulled from working systems," it is known for long-term stability in office and home environments. Upgrade Path hp d33d66 motherboard
: Extremely limited by modern standards. The LGA 1155 socket is several generations old, meaning the best possible CPUs (like the i7-3770) are now considered entry-level for modern software. Best Use Case : It is most suitable for casual computing (web browsing, streaming) and graphic design using older versions of software. Pros and Cons Highly Affordable : Often found used for under $25 on secondary markets. Outdated Architecture : Limited to older DDR3 memory and 3rd-gen Intel CPUs. Reliable OEM Build
: Designed for the consistent uptime required by pre-built desktops. Proprietary Connectors
: HP often uses non-standard power or front-panel connectors, making it hard to use in a standard PC case. Integrated Video
: Supports basic display needs without a separate GPU via VGA/HDMI. Limited Expansion
: Only two memory slots significantly cap multitasking potential.
If you are looking for replacement parts or manuals for this board, you can search HP Support using the specific Product ID from your PC's sticker. HP Support Community Are you looking to a system with this board, or are you trying to an existing HP desktop? HP MOTHERBOARD E162264 Hp D33d66 With I5-6500 - eBay
The HP D33D66 motherboard (often identified by the spare part number E162264) is an OEM board frequently found in refurbished HP Pavilion, Compaq, and business-tier desktop towers. While it is a legacy component, its reliability makes it a popular choice for budget-conscious users looking to build a dedicated home office station or a light media server. Core Specifications
The HP D33D66 is primarily designed for Intel-based systems, providing a stable platform for 2nd and 3rd Generation Intel Core processors.
Socket Type: LGA 1155 (Socket H2), which supports a wide range of Sandy Bridge and Ivy Bridge CPUs.
Chipset: Typically utilizes the Intel Q65 or Q67 Express chipset, common in HP’s business desktop lines like the Compaq 8200 Elite series.
Form Factor: Micro-ATX (mATX), making it compatible with most standard tower and small form factor (SFF) cases.
Memory Support: Features four DDR3 DIMM slots (sometimes two in SFF variations). It generally supports up to 32GB of DDR3 1333/1600 MHz non-ECC unbuffered memory. Expansion and Connectivity The marking is a regulatory or manufacturing identifier
Despite its age, the board offers a surprising amount of connectivity for peripheral devices:
Slots: Includes one PCIe x16 slot for dedicated graphics, one PCIe x4, and two legacy PCI slots.
Storage: Usually equipped with four to six SATA ports (mix of SATA II 3Gb/s and SATA III 6Gb/s).
Rear I/O: Standard configurations include multiple USB 2.0 ports, VGA, DisplayPort, and a Gigabit Ethernet (RJ-45) port. CPU Compatibility and Performance
For users looking to upgrade, the LGA 1155 socket is versatile. It can house everything from entry-level Celeron chips to high-performance i7 processors: Top-tier: Intel Core i7-2600 or i7-3770.
Mid-range: Intel Core i5-2400 or i5-3470 (common in eBay listings ). Budget: Intel Core i3-2100 series. Common Troubleshooting & Maintenance
Because this is an older OEM board, users may encounter specific quirks:
Proprietary Power Connectors: HP often uses a 6-pin or 4-pin proprietary power connector rather than the standard 24-pin ATX. If you are replacing the power supply, you may need an ATX to HP power adapter .
BIOS Updates: To support Ivy Bridge (3rd Gen) CPUs, you may need a BIOS update. Always verify your current version via the HP Support Portal before swapping processors.
BEEP Codes: If the board fails to post, listen for beep codes. Five long beeps often indicate a memory issue, while two short beeps can suggest a BIOS recovery is needed. Is it worth it in 2026?
The HP D33D66 remains a "workhorse" for specific niches. While it cannot run modern AAA games, it is excellent for:
Windows 10/11 Pro: It remains fully capable of handling modern OS tasks with an SSD upgrade. Type: DDR4 Non-ECC UDIMM
Home Labs: Using the four RAM slots to build a Proxmox or TrueNAS server.
Retro Gaming: A perfect base for a Windows XP or Windows 7 legacy gaming rig. CPU compatibility with HP motherboards - HP Community
The HP D33D66 is a laptop/mainboard model used in select HP notebooks (often 15- to 17-inch consumer/business series). It integrates the CPU socket (or soldered CPU), chipset, memory slots, storage interfaces, display and I/O connections specific to the laptop chassis it was designed for.
Buy the HP D33D66 if:
Avoid the HP D33D66 if:
This is where most users make a mistake. The HP D33D66 is very picky about RAM.
If you are reading this because your HP Compaq 6200 stopped working, here are the top three failure modes for the D33D66:
Here is where most DIYers give up.
1. The Front Panel Header (FP1) is non-standard. You cannot plug a standard PC power switch into this board without cutting wires or buying an adapter. If you lose the original HP case, you’ll need to short specific pins manually or build a converter cable.
2. Custom PSU requirements. Many D33D66 boards use a 4-pin CPU power (that’s fine) but a non-standard 10-pin main power* instead of the usual 24-pin ATX. You cannot use a standard retail power supply without a $15 adapter cable.
3. BIOS Lockdown. HP locks the BIOS down tight. Want to enable XMP for your RAM? You can’t. Want to undervolt your CPU? Forget it. Want to use a non-HP Wi-Fi card? The board might refuse to boot (whitelisting).