[主機板] Haswell 唔係build-in power module咩? 點解mb仲見到power phase?

提示: 作者被禁止或刪除 內容自動屏蔽

我都唔係好理解,其實有無識電子嘅解釋一下?
因為玩法真係完全唔同晒!

TOP

本帖最後由 comps08 於 2013-6-7 17:06 編輯

回復 1# freebird

Haswell CPU only accepts 2 voltages from motherboard, Vccin (1.8V nominal up to 2.3V, max 3.04V) and Cddq (1.5V nominal for ddr3, 1.65V for XMP, 1.35V for ddr3L) as compared to the previous design which requires 5 voltage inputs from mb.

The Haswell's FIVR (fully integrated voltage regulator) module will do the power management inside the chip and regulate the voltages to other components inside the CPU, e.g. Vcore, Vgfx, Vpll, etc.

The FIVR module contains 20 power cells and and each cell has 16 phases and total is 320 phases.

The mb still requires the VRM because it requires to bring down the +12V to Vccin and Vddq to the chip. Mb's VRM is beneficial to the chip because it can share the load and provide large current and stable voltage to CPU (Vccin).

I have to praise Intel for developing such technology as FIVR inside the CPU and it is the evidence of result of research and development.

TOP

提示: 作者被禁止或刪除 內容自動屏蔽

TOP

回復 4# freebird

don't know but may be, probably in Broadwell chips,  further improve granularity of power supply. The power module is now outside chip area. This is most useful for device like notebook, tablet, smartphone which require more power saving.

TOP