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| Q: | Why don’t IC7/IS7 series boards support Willamette CPUs? |
| A: |
The reason that Willamette CPU would cause 865/875 chipset boards booting up
failure is the VRD10 power spec designed on IC7/IS7 boards. On VRD10 compliant
motherboards, the VID of Willamette CPU will be wrongfully identified as below
1.0V, which is far away from 1.7V by CPU default spec. Therefore, Willamette
CPU couldn't get correct CPU core voltage to boot up on 875P and 865PE motherboards.
For example, Celeron 1.7G and P4 1.5G/1.7G are Willamette core and could not boot up on all 875P and 865PE motherboards; nevertheless, P4 2.4G(533) and Celeron 2.0G are Northwood core which are okay for 875P and 865PE motherboards. For further information, please visit Intel website: |