MSI relies on a rather tidy multi-layer board with a somewhat unconventional design, which was probably also developed from a thermal point of view. The board of revision 6 corresponds approximately to revision 2, as it is also used with the normal MSI GeForce GTX 1080 Ti Gaming X. However, some holes have changed as well as the position of individual components, as the cooling frame also changes slightly.
For example, the GPU uses a total of eight real phases, for which one relies on an NCP81274 from ON Semiconductor, which can also realize this. With the 53603, you then use a special gate driver per phase, which controls the control circuits.
GPU Power Supply |
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PWM Controller | NCP81274 ON Semiconductor 8-Phases |
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Gate Driver | 53603 Per Phase |
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Vrm | DG49BL Fairchild Dual-N-Channel MOSFET High- and Low-Side |
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Coils | Sfc Super Ferrite Choke Lianzhen Electronics |
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Memory and power supply |
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Modules | MT58K256M321-Ja110 Micron 11 Modules GDDRX5 11 GByte/s 5500 MHz (effective) |
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PWM Controller | uP1658 UPI Semiconductor 2 phases |
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Vrm | DG49BL Fairchild Dual-N-Channel MOSFET High- and Low-Side
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Encapsulated Ferrite Choke 22nH |
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Other components |
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Monitoring | INA3221 Monitoring Chip Currents, voltages |
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Fan Control |
8915FN Ite Fan Control Monitoring |
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Bios | Winbond 25Q40 Kynix Semiconductor Eeprom Bios |
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Shunts | 1x coil (smoothing) and shunt per PCIe socket (12V input voltage) | |
More details |
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Other Features |
– 2x 8-pin PCI-Express connectors for power supply – Filter coils in the entrance area – Voltage taps |
- 1 - Einführung und Übersicht
- 2 - Platine und Spannungsversorgung im Detail
- 3 - Gaming Performance: 2560 x 1440 Pixel (WQHD)
- 4 - Gaming Performance: 3840 x 2160 Pixel (UHD)
- 5 - Leistungsaufnahme im Detail
- 6 - Temperaturen, Taktraten, OC und Wärmebildanalyse
- 7 - Kühlerdetails und Geräuschentwicklung
- 8 - Zusammenfassung und Fazit
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