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Corsair RMi Series 1000W Review

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The Corsair RM1000i is immediately recognisable as a Corsair power supply – we like how the company follow a design ethic throughout their range, even though the various ranges have different coloured accents and stickers. Luckily enough Corsair didn’t opt for yellow tones with the power supply itself, just the box.

Finish quality is high and it passed our screwdriver test. This involves running the head of a Philips head driver down the side of the chassis with light to medium force. After all, how many times have you accidentally connected with a power supply during a system build?
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There is a large pale fan visible behind the black metal grill. We will take a closer look at the fan when we open the unit shortly.
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A sticker brings attention to the silent fan mode during low to moderate loads. When this is removed we can see one side of the unit is vented with a power connector and switch for operation.
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The modular bay is a three row implementation (750 watt model is two rows) – clearly labelled to make the build phase as straightforward as possible. The digital link connector is located in a separate panel at the side. As the sticker explained – the fan in this unit is often not spinning at all under general load conditions – Corsair have therefore thoughtfully included a ‘fan test’ button so the user can check the fan is actually working.
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Corsair RM1000i in Single +12V Rail Mode
DC Output
+3.3V
+5V
+12V
-12V
+5Vsb
Max Output
25A
25A
83.3A
0.8A
3A
Total Power 150W 1000W 9.6W 15W
1000W

 

Corsair RM1000i in Multiple +12V Rail Mode
DC Output
+3.3V
+5V
+12V1 +12V2 +12V3 +12V4 +12V5 +12V6 +12V7 +12V8
-12V
+5Vsb
Max Output
25A
25A
40A 40A 40A 40A 40A 40A 40A 40A
0.8A
3A
Total Power 150W 1000W 9.6W 15W
1000W

The Corsair Link software can change the RMi power supply DC output configuration from the default setting of multiple +12V rails to a single +12V rail.  The RMi series can deliver all of their available power over the +12v rail.

OCP disabled
At the default setting, the RMi has over current protection (OCP) on all of the rails. Each of the 8 pin connectors used for CPU power and PCIe power delivery has a 40A OCP over the +12V. The six pin connectors for SATA and Molex +12V leads have collectively a 40A OCP, as does the two +12V leads on the 24 pin connector.

This OCP can be disabled within the Link software. You simply toggle the multi rail switch on the right to the ‘off’ position. This will open up all the connectors to the PSU’s full +12V capability.

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