Intel P35 Explained

Table Name:	Intel P35 Express
Codename:	Bearlake
Cpu:	Core 2 (Quad, Duo, Extreme) Dual-Core Pentium Celeron (Core architecture)
Socket:	LGA 775
Process:	90 nm^[1]
Tdp:	16 W^[2]
Southbridge:	ICH9 or ICH9R
Date:	June 2007
Predecessor:	P965
Successor:	P45 (Eaglelake)

The P35 Express (codenamed Bearlake^[3]) is a mainstream desktop computer chipset from Intel released in June 2007, although motherboards featuring the chipset were available a month earlier.^[4] 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^[5] 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.

Features

• 1333/1066/800 MT/s front-side bus (FSB)
• PCI Express 1.1
  • Up to ×16 interface with 8 GB/s total bandwidth (4 GBps down, 4 GBps up).
  • Some motherboards support Crossfire. No SLI support.
• Intel Fast Memory Access
  • Updated Memory Controller Hub (MCH) to increase performance and reduce latency.
• Dual channel DDR2 memory
  • Up to 12.8 GB/s bandwidth and 8 GB addressable memory.
• Dual channel DDR3 memory
  • Up to 17 GB/s bandwidth and 8 GB addressable memory.
• Intel Flex Memory Technology
  • Allows different memory sizes in dual-channel mode.
• Intel High-Definition Audio
• Intel Matrix Storage Technology
  • Supports RAID 0, 1, 5, and 10 with SATA and eSATA interfaces.
• Intel Rapid Recover Technology
• Intel Turbo Memory
• SATA 3 Gbit/s
• eSATA/Port Multiplier (Hot-plug and Port Multiplier is a BIOS option which few motherboards actually support)
• SATA Port Disable
  • Allows disabling/enabling of individual SATA and eSATA ports for enhanced security.
• USB Port Disable
  • Allows disabling/enabling of individual USB ports for enhanced security.
• Intel Quiet System Technology
  • Automated system fan speed control.

See also

• List of Intel chipsets

External links

• P35 Express Chipset
• 82P35 Memory Controller
• Intel P35 Express Chipset—Product Brief, Intel.

Notes and References

1. News: bit-tech.net . March 7, 2008 . Intel talks P45, G45 and X48 . 2008-03-25.
2. Web site: Intel . October 2007 . Thermal and Mechanical Design Guidelines . PDF . 2008-03-25.
3. . June 5, 2007 . Intel Introduces '3-Series' Chipsets at Computex . 2007-10-23.
4. News: Gigabyte to release eight P35 motherboards . BeHardware . May 9, 2007 . 2008-03-25 . 2012-02-07 . https://web.archive.org/web/20120207115745/http://www.behardware.com/news/8809/gigabyte-to-release-eight-p35-motherboards.html . dead .
5. Web site: The 3-Series Chipset Family . Tom's Hardware Guide . 2008-07-10.