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1 Rookie

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13 Posts

133

April 16th, 2024 20:06

5040 PSU upgrade (PLEASE HELP FAST)

Hi, I need help fixing my Dell optiplex problems

I have bought a Dell Optiplex 5040 MT, it has 16gb ram, i7-6700, and 1tb hdd.

I bought a rx6600 at a good deal, and I also bought a lien liu 750w power supply. I used the often accepted solution of using a 24 to 8 pin adapter, however my motherboard is like killing itself and its showing a double flashing amber light whenever I use the new power supply, the old one works fine, I am just trying to get this working cuz this is the only way my parents will let me get a PC.

PLEASE HELP FAST

1 Rookie

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13 Posts

April 17th, 2024 22:26

6 Professor

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7.7K Posts

April 17th, 2024 22:54

From previous post:  "The RX 6600 is a 132 w card. 400w-450w PSU will do the trick. It's possible the 360w one might be enough, but might be a stretch."

If you found one that fits, Corsair is a good name brand.

Full size ATX PSU would have to sit outside the case.

6 Professor

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7.7K Posts

April 18th, 2024 00:08

In order for the Lian Li PSU to not work, something has to be off.  I edited my above post that mentioned under-volting, as it was amps I was trying to think of in some scenarios.

@redxps630 - Wattage is important as OP wants to power a 132w RX 6600, preferably with at least a 400w-450w PSU.

(edited)

7 Technologist

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10.7K Posts

April 18th, 2024 03:08

2 blinks > short pause >

2 blinks > long pause > repeats

Bad Power Supply or Power Supply cabling
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