S19 Maintenance Guide
3
Figure 3-7 Figure 3-8
IV. Principle overview
1. Working structure of S19 hashboard:
The hashboard is composed of 76 BM1398 chips, which are divided into 38 groups (domains), and each group is composed of 2 ICs; the
operating voltage of the BM1398 chip used in the S19 hashboard is 0.36V; for the 38th, 37th, 36th, 35th, 34th, 33rd, 32nd group (7 groups
in total), LDO is powered by the 19V output from the boost circuit U9 and outputs 1.8V. The 30th group - the first group are supplied by
VDD13.64V through the LDO to provide 1.8V, and the voltage of each domain retreated is reduced by 0.36V. All 0.8V is provided by the
1.8V output of this domain via LDO, as shown in Figure 4-1;
Figure 4-2
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