This part is a kind of semiconductor called 82801GBM.

Function of this product has I/O Controller Hub 7.

Manufacturers : Intel

Image and pinout :

Some of the text within the PDF file :

Intel® I/O Controller Hub 7 (ICH7) Family Datasheet For the Intel® 82801GB ICH7, 82801GR ICH7R, 82801GDH ICH7DH, 82801GBM ICH7-M, 82801GHM ICH7-M DH, and 82801GU ICH7-U I/O Controller Hubs April 2007 Document Number: 307013-003 Free Datasheet http://www.net/ INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR IN [ ... ]

82801GBM PDF Datasheet Download