Intel Core 2 Quad Q6600 (105W) socket: LGA 775
The Intel Core 2 Quad Q6600 (105W) uses the LGA 775 socket. It is a 105 W quad-core Kentsfield desktop part at 2.4 GHz with 8 MB of L2 cache for mainstream towers.
- Socket
- LGA 775
- Launched
- January 2007
- Cores and threads
- 4 and 4
- Base power
- 105 W
- Codename
- Kentsfield
- Segment
- Desktop
- Family
- Intel Core 2 Quad
- Clocks
- 2.4 GHz
Intel Core 2 Quad Q6600 (105W) specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Kentsfield cores on 65 nm |
| Clocks | 2.4 GHz (no turbo) |
| Cache | 8 MB L2 (2x4 MB) |
| Processor base power (TDP) | 105 W |
| Manufacturing process | 65 nm |
| Memory support | DDR2 through the board chipset |
| Front side bus | 1066 MT/s |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None (board video where fitted) |
| Multiplier | Locked |
| Package | LGA 775 |
Motherboard and chipset compatibility
Intel Core 2 Quad Q6600 (105W) needs a motherboard with a LGA 775 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Intel 4 series | X48, P45, G45, G41 | Works out of the box |
| Intel 3 series | X38, P35, G33, G31 | Works out of the box |
| Intel 965 and 975X | 975X, P965, G965, Q965 | Needs a BIOS update Works only on boards whose BIOS and voltage regulator were designed for it. Check the board maker's CPU support list. |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 775.
LGA 775 at a glance
| Type | LGA, 775 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | 2004 |
| Memory | DDR, DDR2 or DDR3, depending on the motherboard chipset |
| Cooler mounting holes | 72 × 72 mm |
What the Core 2 Quad Q6600 (105W) is
The Intel Core 2 Quad Q6600 (105W) is a 2.4 GHz desktop quad core from January 2007. It runs four Core cores at 2.4 GHz with no turbo, so 4 cores give 4 threads. Cache is 8 MB of L2 as two 4 MB dies on a 65 nm process. Power is rated at 105 W on LGA 775.
The 105W version uses the B3 stepping on a 1066 MT/s bus with a 9x multiplier at about 851 dollars launch price. It exists as the first mainstream Kentsfield quad, later replaced in part by the 95W G0 stepping at the same clocks.
Socket and motherboard compatibility
The Q6600 (105W) drops into LGA 775 boards with DDR2 memory and a BIOS that lists early 2007 Kentsfield quads, such as 965 and P35 boards. Boards need voltage regulator support for the 105 W envelope. 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 1066 MT/s front side bus ties the CPU to the chipset. PCIe slots hang off the chipset.
Cooling is any 105 W rated LGA 775 heatsink on the 72 mm mount, with Enhanced SpeedStep trimming draw at idle.
Upgrade paths
On LGA 775 the upgrade is the Intel Core 2 Quad Q6700 at 2.667 GHz in the 95 W class, or the Intel Core 2 Quad Q6600 (95W) at 2.4 GHz for the same clocks at lower power. Beyond LGA 775 a move to a newer platform needs a new board and memory.
Frequently asked questions
What socket does the Core 2 Quad Q6600 (105W) use?
LGA 775, on DDR2 boards with a Kentsfield-aware BIOS.
How many cores does the Core 2 Quad Q6600 (105W) have?
Four cores and 4 threads at 2.4 GHz with 8 MB of L2 cache.
What memory works with the Core 2 Quad Q6600 (105W)?
DDR2 through the board chipset in two channels.
Sources and verification
Facts last checked against these sources on . Page last edited on .