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Old 10th March, 2002, 07:37 PM
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Join Date: February 2002
Posts: 33

Why is VDimm so Low?

Hello all,
I just have a couple quick questions...
1) Why is my vdimm so low? If i set it to (3 its @ 2.94) (3.1 its @ 3.04) (3.2 its @ 3.14) its always off by .06 why? @ 3.2 under load the highest it went was 3.14 & lowest was 3.09.

2) Please look at my specs in my signature and tell me what should my vdimm voltage be set at? I have it at 3.2 currently.

3) I have antec pp412 and its has 2 adjustable pots the 3.3 and the 5 w/ the 12. When i adjust these i know they affect these 3 voltages but do they affect any other votalges such as the vdimm? (e.g. if i would raise the 5 w/ the 12 would this crank more to the vdimm so i get higher readings?

4) What should be the highest i go for the 3.3 the 5 and the 12

Thanks again to everyone in advance!
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pp-412X
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Old 11th March, 2002, 02:17 AM
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Oops sorry i forgot to mention that all these readings were taken from MBM version 5.1.0.7
Oh yea and you guys dont have to answer all of the questions if you know only one of the answers to my question then just reply for that one question
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pp-412X
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Old 11th March, 2002, 02:31 AM
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Join Date: September 2001
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In orderish

1) The voltage sensors are not 100% accurate. They suffer from two types of error. One is that they will read a constant amount above/below the real value. The other is that they have distinctive steps, rather than 0.01 intervals. I would consider an error of 0.06v to be well within the error of the voltage sensors.

2) No idea - someone else will have to get it!

3) the Vdimm voltage is generated by the board itself. Cranking up the output from the PSU will not increase the Vdimm voltage.

4) As a general rule, don't go more than 10% above or below. 5% tolerance is preferable. Some PSUs have overvoltage protection and will crowbar the output if you go over a set voltage. The crowbar is designed to short circuit the output of the PSU, blowing the fuse in order to protect the connected equipment.

AidanII
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