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[PSU] FSP Aurum 500W 80 Plus Gold

This is a discussion on [PSU] FSP Aurum 500W 80 Plus Gold within the RAM and Power Supply Support forums, part of the Tech Support Forum category. Good day TSF! I just want to ask if there is a problem when the voltage on the 5V is


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Old 07-29-2018, 04:04 AM   #1
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Good day TSF!

I just want to ask if there is a problem when the voltage on the 5V is not constant?

Intel Core i3-7100 and MSI B250M Mortar Arctic

VCore 0.840V (Changes)
3.3V 3.328V (Firm)
5V 5.120V & 5.160V (Changes)
12V 12.096V (Firm)

Is there a connection between the VCore and the 5V? That whenever the VCore increases, the 5V also increases to 5.160V, though its firm, just 5.120 or 5.160V, nothing else.
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Old 07-29-2018, 08:11 PM   #2
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Voltages should vary around +/- 5%. The changes you are seeing are fine.
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Old 07-29-2018, 08:57 PM   #3
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I see sir. This means that the 5V should not go beyond 5.25V?

Am I calculating it right? 5% of 5 is 0.25.
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Old 07-30-2018, 06:29 AM   #4
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Quote:
just 5.120 or 5.160V, nothing else.
You are talking about 4/100th of 1 volt! That is very good regulation.

And just to clarify, it is not that any of the voltages "should" vary, it is that they should "not" exceed the 5% tolerances allowed by the ATX Form Factor standard.

So allowed tolerance maximums for the 3 primary voltages are:
12VDC 5% = 11.4 to 12.6VDC
5VDC 5% = 4.75 to 5.25VDC
3.3VDC 5% = 3.14 to 3.47VDC
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Old 07-30-2018, 08:27 AM   #5
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Thank you sir for that info and for those who enlightened me about these voltages.
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