| CPU | LGA775 socket for Intel® Core™2 Quad / |
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| Core™2 Extreme / Core™2 Duo / Pentium® Extreme / |
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| Pentium® D / Pentium® 4 Processors |
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| Supports Intel® |
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| Compatible with Intel® 06/05B/05A processors |
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| * Refer to www.asus.com for Intel CPU support list |
| Chipset | Intel® X38 / ICH9R with Intel® Fast Memory Access |
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| Technology |
| System Bus | 1333/1066/800 MHz |
| Memory | |
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| - 4 x |
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| unbuffered DDR2 1066*/800/667MHz memory |
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| modules |
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| - Supports up to 8 GB system memory |
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| * The chipset officially supports the memory frequency up |
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| to DDR2 800MHz. Tuned by the ASUS Super Memspeed |
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| Technology, this motherboard natively supports up to |
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| DDR2 1066MHz. Refer to www.asus.com or this user |
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| manual for the Memory QVL (Qualified Vendors Lists). |
| Expansion Slots | 2 x PCIe 2.0 x16 slots (both @ x16 mode) support |
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| CrossFire Technology |
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| 3 x PCIe x1 (PCIEX1_1 [black] is compatible with the |
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| audio slot.) |
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| 2 x PCI 2.2 slots |
| Storage | Southbridge |
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| - 6 x SATA 3.0 Gb/s ports |
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| - Intel® Matrix Storage Technology supports RAID 0, |
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| 1, 5, and 10 |
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| JMicron® JMB368 PATA controller |
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| - 1 x UltraDMA 133/100 for up to 2 PATA devices |
| LAN | Marvell 88E8056® PCIe Gigabit LAN controller featuring |
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| AI NET 2 |
| High Definition Audio | SupremeFX II Audio Card |
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| - ADI 1988B |
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| - Supports |
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| streaming, AI Audio 2, and ASUS Noise Filter |
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| Coaxial / Optical S/PDIF Out ports at back I/O |
| IEEE 1394 | VIA VT6308P controller supports 2 x IEEE 1394a ports |
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| (one at midboard; one at back panel) |
| USB | 12 x USB 2.0 ports (6 ports at midboard, 6 ports at back |
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| panel) |
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| (continued on the next page) |
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