Intel Core 2 Duo U7700 socket: Socket P
The Intel Core 2 Duo U7700 uses the Socket P socket. It is a 10 W dual-core Merom ultra-low-voltage part at 1.333 GHz with 2 MB of shared L2 cache for thin notebooks.
- Socket
- Socket P
- Launched
- February 2008
- Cores and threads
- 2 and 2
- Base power
- 10 W
- Codename
- Merom
- Segment
- Mobile (socketed)
- Family
- Intel Core 2 Duo
- Clocks
- 1.33 GHz
Intel Core 2 Duo U7700 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Merom cores on 65 nm |
| Clocks | 1.333 GHz (no turbo) |
| Cache | 2 MB shared L2 |
| Processor base power (TDP) | 10 W |
| Manufacturing process | 65 nm |
| Memory support | DDR2 through the board chipset |
| Front side bus | 533 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None (board graphics where fitted) |
| Multiplier | Locked |
| Package | Socket P (478-pin) |
Motherboard and chipset compatibility
Intel Core 2 Duo U7700 needs a motherboard with a Socket P socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Montevina (4 series mobile) | GM45, PM45 | Needs a BIOS update |
| Santa Rosa (965) | GM965, PM965 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for Socket P.
Socket P at a glance
| Type | PGA, 478 contacts |
|---|---|
| Package size | 35 × 35 mm |
| Introduced | May 2007 |
| Memory | DDR2 or DDR3, depending on the chipset, two channels |
| Cooler mounting holes | Board specific (laptop heatsink) |
What the Core 2 Duo U7700 is
The Intel Core 2 Duo U7700 is a 1.333 GHz ultra-low-voltage mobile dual core from February 2008. It runs two Core cores at 1.333 GHz with no turbo, so 2 cores give 2 threads. Cache is 2 MB of shared L2 on a 65 nm process. Power is rated at 10 W on Socket P.
The U7700 tops the Merom ULV line for thin notebooks that needed the quickest 10 W dual core, pairing a 533 MT/s bus with VT-x virtualization. Per-model detail is thinner than on the U7500, resting on the task list and the shared ULV family documentation. An Intel notice also tracks these ULV parts through a Merom stepping conversion.
Socket and motherboard compatibility
The U7700 fits Socket P notebooks with DDR2 memory and a BIOS that lists ultra-low-voltage Merom parts. It does not fit Socket M boards despite the shared 478 pins. Display comes from the notebook board graphics. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR2 through the board chipset in two channels.
A 533 MT/s front side bus ties the CPU to the mobile chipset. PCIe slots and board graphics hang off the chipset.
Cooling is the notebook vendor heat pipe assembly for the exact chassis, with Enhanced SpeedStep trimming clocks and voltage on battery.
Upgrade paths
On Socket P the U7700 is the ULV ceiling, so the moves are the Intel Core 2 Duo U7500 at 1.073 GHz for a cheaper 10 W part, or a standard-voltage Merom where the chassis cools 35 W. A swap must stay within the thermal design the chassis was qualified for.
Frequently asked questions
What socket does the Core 2 Duo U7700 use?
Socket P, the 478-pin package in ultra-low-voltage notebooks.
How many cores does the Core 2 Duo U7700 have?
Two cores and 2 threads at 1.333 GHz with 2 MB of shared L2 cache.
What memory works with the Core 2 Duo U7700?
DDR2 through the board chipset in two channels.
Sources and verification
- Intel ULV U7700, U7600 and U7500 stepping conversion (Intel)
- Intel Core 2 Duo U7500 specs (TechPowerUp)
Facts last checked against these sources on . Page last edited on .