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Sata Hard Disk


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#1 spearball

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Posted 10 December 2007 - 11:12 PM

On my SATA hard drive i noticed two power connectors. There is a 4 pin molex and a sata power connector. Why is there two of them and which one is better to use? Is it the exact same thing?

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#2 tg1911

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Posted 11 December 2007 - 12:28 AM

One connects to the motherboard, and one connects to the power supply.
MOBO: GIGABYTE GA-MA790X-UD4P, CPU: Phenom II X4 955 Deneb BE, HS/F: CoolerMaster V8, RAM: 2 x 1G Kingston HyperX DDR2 800, VGA: ECS GeForce Black GTX 560, PSU: Antec TruePower Modular 750W, Soundcard: Asus Xonar D1, Case: CoolerMaster COSMOS 1000, Storage: Internal - 2 x Seagate 250GB SATA, 2 x WD 1TB SATA; External - Seagate 500GB USB, WD 640GB eSATA, 3 x WD 1TB eSATA

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#3 Platypus

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Posted 11 December 2007 - 01:31 AM

The two power connectors are provided for versatility - not all power supplies have a SATA power plug, so a spare Molex plug can be used instead. Molex plugs are typically very firm and unlikely to fall out, but a SATA power plug is designed to unplug easily, as SATA drives are hot-swappable. Consequently, if a system has a Molex plug free, it's probably best to use that, so the plug is less likely to work loose & fall off if the system is transported.

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