![](/images/new-backgrounds/1188902/188902113x1.webp)
3.6.3 System Fan Layout
J14
J7
J19
J20
J15
System Fan Speed Control Signal
| M1012 Adapter Board | Connect to | Motherboard |
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| J7 PWM Connector | Æ | J15 Connector |
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| System Fan Monitoring Signal | ||
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| Barebone System Fan | Connect to | Motherboard Fan |
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| J14 (Fan 1, 2, 3, 5) | Æ | J19 (Fan 2, 3, 5) |
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| & |
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| J20 (Fan 1) |
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| J7 (Fan 4) | Æ | J15 (Fan 4) |
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Chapter 3: Replacing | 49 |