2. Stand-alone test, visual inspection vibration still exists. The coupling should be disconnected and the motor tested separately. If the motor does not vibrate, the vibration is caused by the installation of the main machine or the side shaft. If the vibration of the single-test motor still exists, the motor itself is defective. At this time, the instantaneous power-off method can be used to distinguish whether it is an electrical cause or a mechanical cause, or both, and the specific problem is: motor electromagnetic noise.
Possible phenomenon: Turn off the power supply, the noise disappears. First check and adjust the power supply voltage to make it balanced; check whether the single-phase operation; check the air gap to find the stator deformation and the rotor bending. Handle vibration. Look for winding open circuit, short circuit and grounding, and take corresponding measures to repair it.
B85 8-card mainboard, 8-card in-line motherboard platform (B85 8-card 1820U independent U+ new chassis 4 strong 5300 RPM fan /4 silent 3000 RPM optional +4G memory +128G solid state +2000W new power supply) compatible with all types of graphics cards in the market, stable performance, reasonable heat dissipation.
X79 Gpu Mining Case
Chassis weight: 4.5kg
Weight of chassis with fan: 5.5kg
Size:500*400*180mm
Multi graphics card case custom case
Motherboard bit: compatible with standard ATX motherboard
Hard disk bit: a 3.5-inch hard disk or a 2.5-inch hard disk
Power bit: ATX power installation size
Standard fan: 4 sets of 12038 fans,
Graphics card bit: supports up to 5 330mm long graphics cards
Chassis material: 1.0 mm cold plate full baking paint to prevent rust, anti-static effect!
tips: chassis products are bulky, heavy weight, and the express freight is very expensive. Buyers should consider buying them carefully to avoid unnecessary loss caused by return. If you don't understand, please communicate with customer service.
The fan of the product is double ball fan, 5300 RPM new violent fan, with noise of 65dB
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Shenzhen YLHM Technology Co., Ltd. , https://www.sggminer.com