Intel 440BX

Intel 82443BX This is an Intel northbridge. CPU Host Bridge (PCI ID: 8086:7190) AGP-PCI Bridge (PCI ID: 8086:7191) Intel_82371EB companion SouthBridge Features Supports the following processors: Intel Mobile Pentium II Intel Mobile Pentium III Supports the following memory modules, up to a maximum of 1024 MB: PC-1331 (will be limited to PC-100 speeds) PC-1001 PC-661 EDO 60ns Front Side Bus (FSB): 66/100 MHz AGP 1x or 2x FOOTNOTES [Δ] The 82443BX is incapable of addressing more than 256MB on a single RAM module, which causes most ThinkPads to max out at 256/512MB. Certain ThinkPads may have 32/64MB soldered on the motherboard, and may allow them to max out at 544/576MB instead.

Linux support

This chipset is supported by recent 2.4 and 2.6 kernels

Documentation

Datasheet Intel 440BX documentation

This chip may be found in

• i Series 1720, i Series 1721
• i Series 1422, i Series 1442, i Series 1482, i Series 1483, i Series 1492
• i Series 1542, i Series 1562, i Series 1592
• 380XD, 380Z
• 385XD
• 390, 390E, 390X
• 560Z
• 570, 570E
• 600, 600E, 600X
• 770E, 770ED, 770X, 770Z
• A20m, A20p, A21m, A21p, A22m, A22p
• T20, T21, T22