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Old 09-16-2008, 01:02 PM   #1
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Default Everything You Need to Know About The Motherboard Voltage Regulator Circuit

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Title: Everything You Need to Know About The Motherboard Voltage Regulator Circuit
URL: http://www.hardwaresecrets.com/article/616

Here is a snippet:
"If you are willing to learn more about motherboard quality you must deeply study the voltage regulator circuit, which is in charge of taking the voltage provided by the power supply namely +12 V a..."

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Old 09-17-2008, 12:14 PM   #2
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Great, easy to understand and informative article as always, Mr Administrator.
However just a quick correction - on the 5th page, last paragraph (first sentence) it should say instead of:
Quote:
The more phases you have, less time each phase will be turned off.
The more phases, less time turned on
or the less phases, less time turned off.
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Old 09-18-2008, 07:42 AM   #3
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Thank you so much for the correction!

Done!

Cheers,
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Old 09-19-2008, 03:18 PM   #4
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These are the kind of articles that reminds me of why I love Hardware Secrets more than any other hardware site out there. Even though I don't understand too much of it (haven't read through this one yet, but I see it's the type of article I like), it's a really interesting read I usually don't find other places.

Thank you very much for texts like these, I appreciate it a lot!
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Old 09-19-2008, 10:59 PM   #5
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Default Digital PWM

I'm assuming, and we know that means, that digital PWM's have no visible inductors, so there's no way to be sure of the phase count? My DFI is reported to have an eight phase PWM, but how would I tell? Get a schematic of the circuit?
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Old 09-20-2008, 02:52 PM   #6
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petercintn: perhaps if you tell us the exact name of motherboard we could see a pic and tell how many phases there are...
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Old 09-21-2008, 03:03 AM   #7
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Quote:
Originally Posted by SirkoZ View Post
petercintn: perhaps if you tell us the exact name of motherboard we could see a pic and tell how many phases there are...
It's a LT P35 T2R. I have no reason to believe that DFI is lying about the phases. I was just curious as how you would tell with this digital circuit. A pic of the board comes from AndreYang in a thread from Xtremesystems. My board is to cluttered to get a good look. I hope this is all right since I gave him credit for the pic. I have not been able to find a pic of the underside, but I plan on replacing my case at the first of the month I can take one then.

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Old 09-22-2008, 08:02 AM   #8
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Thanks so much for your addition. I will take a look into this in more details and update the tutorial. The answer probably lies by checking the specs of the two "big chips" on the voltage regulator circuit, but let me analyse this first and get back to you.

Cheers,
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Old 08-31-2009, 11:33 AM   #9
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Quote:
Originally Posted by Gabriel Torres View Post
Thanks so much for your addition. I will take a look into this in more details and update the tutorial. The answer probably lies by checking the specs of the two "big chips" on the voltage regulator circuit, but let me analyse this first and get back to you.

Cheers,
Gabriel.
Hi, I know this is an old article, I'd like to thank you for posting this as it adds an extremely valuable information to noobs like me. . I have a request though, is it possible for you guys to post a tutorial on how to locate voltage read points on the motherboard?

I'd really love to learn how to do that because I'm too scared of just randomly poking components.
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Old 08-31-2009, 01:41 PM   #10
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Thank you a lot for your nice feedback. Thanks also for the suggestion. What voltages exactly you want to read? CPU voltage, north bridge voltage, memory voltage, this kind of thing? Please advice. I think this is a terrific idea and would give us a fantastic tutorial.

Cheers.
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