601-7850-100 = BIOS 4xx = Z97 PC Mate
601-7850-110 = BIOS 5xx = H97 PC Mate
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Z97 PC Mate (MS-7850) V4.A BIOS Release
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1. This is AMI BIOS release

2. This BIOS fixes the following problem of the previous version:
-  Improved ODD compatibility.
-  Improved VGA compatibility.
-  Updated BIOS Code.

3. 2015/8/12

[Below information is Chinese language]

A. AMI BIOS 正式發行

B. 此版本修正下列問題:
-  改善與部分光碟機間的相容性.
-  改善與部分顯示卡的相容性
-  更新 BIOS Code.

C. 更新日期: 公元2015年8月12號