Intel P35

{{Short description|Desktop computer chipset}}

{{Infobox chipset

| Table_name = Intel P35 Express

| Image =

| img_w =

| Caption =

| Codename = Bearlake

| CPU = Core 2 (Quad, Duo, Extreme)
Dual-Core Pentium
Celeron (Core architecture)

| Socket = LGA 775

| Process = 90 nm

{{cite news |publisher=bit-tech.net |date=March 7, 2008 |url=http://www.bit-tech.net/news/2008/03/07/intel_talks_p45_g45_and_x48/1 |title=Intel talks P45, G45 and X48 |accessdate=2008-03-25}}

| TDP = 16 W

{{cite web |publisher=Intel |date=October 2007 |url=http://download.intel.com/design/chipsets/designex/31696803.pdf |format=PDF |title=Thermal and Mechanical Design Guidelines |accessdate=2008-03-25}}

| Southbridge = ICH9 or ICH9R

| Date = June 2007

| Predecessor = P965

| Successor = P45 (Eaglelake)

}}

The P35 Express (codenamed Bearlake{{cite press release |publisher=Intel |date=June 5, 2007 |url=http://www.intel.com/pressroom/archive/releases/20070605comp.htm |title=Intel Introduces '3-Series' Chipsets at Computex |accessdate=2007-10-23}}) is a mainstream desktop computer chipset from Intel released in June 2007, although motherboards featuring the chipset were available a month earlier.{{cite news |url=http://www.behardware.com/news/8809/gigabyte-to-release-eight-p35-motherboards.html |title=Gigabyte to release eight P35 motherboards |publisher=BeHardware |date=May 9, 2007 |accessdate=2008-03-25 |archive-date=2012-02-07 |archive-url=https://web.archive.org/web/20120207115745/http://www.behardware.com/news/8809/gigabyte-to-release-eight-p35-motherboards.html |url-status=dead }}

The P35 Express chipset supports Intel's LGA 775 socket and Core 2 Duo and Quad processors, and is also known to support 45 nm Wolfdale/Yorkfield dual and quad core CPUs. Theoretically, Intel also dropped support for Intel's Pentium 4 and Pentium D processors with this chipset{{cite web|url=http://www.tomshardware.com/reviews/intel-intros-3-series-chipsets-fsb1333-ddr3,1607-3.html |title=The 3-Series Chipset Family |publisher=Tom's Hardware Guide |accessdate=2008-07-10}} although late Pentium 4 processors, including both the 32-bit-only (5x0) and the 32-bit/64-bit (5x1), and a few others, were fully supported.

It is notable for providing the first commodity support of DDR3 SDRAM. It also supports DDR2 SDRAM; the choice is made by the motherboard manufacturer, and some manufacturers supported both DDR3 and DDR2 on the same motherboard, but only one memory type at a time, often 4× DDR2 or 2× DDR3, as in the Gigabyte GA-EP35C-DS3L/R; but DDR3-only models, such as the Gigabyte GA-EP35T-DS3L/R and the DDR2-only models, such as the Gigabyte GA-EP35-DS3L/R were also made, concurrently. Another notable point is that it does not provide Parallel ATA support; most 2007 motherboards added PATA support via a JMicron JMB361 or JMB363 chip.