HELP. 3.3v reading LOW. Whats going on???

[FFactory0x]

MOBo MONITOR
+3.3 2.67
+5 5.03
+12 12.22
-12 -12.85
-5 -5.04


Bios readings! which is 3.3v

VDD 1.63
Vcore 1.64
vdimm 2.67
+5 5.02
+12 12.22
-12 -12.85
-5 -5.04
Vbat 3.16
5vsb 5.56




what do these mean??????????? Should my current be under or over???? I mean if it says 3.3 should i be under or over?

I have antec 350watt ps.
2100+
9700
8rda
ys tek variable fan
5 antec case fans
dvd
cdrw
floppy
40gb hd

 

[Macro2]

Your 3.3v is low. + or - 10% is generally accepted. OTOH, in order to be sure you need to directly test the voltage.
Is your computer stable?

 

[FFactory0x]

yea, i ran 3dmark twice, and prime for 40min without error. HMMMM. I saw that and cant check the 3.3 in bios. I mean is it that accurate mobo monitor. Do i have to much stuff for 350watt ps. Also what is the 3.3 rail. If it the floppy one, all i have is a floppy and 9700 on the 3.3

 

[Macro2]

Look in your bios for your DDR voltage. If it's the same/close as what you are reading in the monitor you're using then you are fine.

 

[FFactory0x]

i just dont know how its so low. What and where is the ddr voltage? I mean how do i find 3.3v??

 

[FFactory0x]

Bios readings! which is 3.3v

VDD 1.63
Vcore 1.64
vdimm 2.67
+5 5.02
+12 12.22
-12 -12.85
-5 -5.04
Vbat 3.16
5vsb 5.56

 

[farmercal]

From what I have read on the subject your 3.3 voltages are used to power digital circuits (such as graphics card, parts of the MB, sound, etc.), your floppy runs of the 5 volt rail. If you are not experiencing any operating problems then I wouldn't worry about it too much. As far as which of your BIOS reading voltages is the 3.3 - vdimm has the same reading as MBM indicated for the 3.3 so that is probably your 3.3.

 

[FFactory0x]

yea but shouldnt vdimm be around that 2.5-2.7 and 3.3v reading be around 3.3volts?

 

[DaTT]

my -12V reads -2V. IMO, these monitoring chips that are on our MOBO's are not 100% accurate -- far from ti to be exact. Not only am I getting a -2V where it should be -12V, my CPU also reads -16 degrees.

 

[DayLaPaul]

There IS no 3.3V on the 8rda. It's supposed to be called vdimm. Go to MBM settings and rename it to vdimm. Raise or lower the vdimm in your bios and you will see the 3.3v change.

 

[FFactory0x]

nice. I thought all ps's had 3.3 volt rails. Anyway if thats the case. All my other voltages are golden, and it time to oc

 

[Macro2]

the 2.67v is likely powering your DDR and that's high enough to overclock.


Good luck.

 

[FFactory0x]

how about that -12v rail???? Thats pretty high. I ran prime95 for 3hrs today and it rose to -12.925 other than that other rails stayed constant

 

[Macro2]

RE:"-12.925"

It's within' 10% and who says it's being read correctly. The only way to test voltages for sure is a multimeter hooked up to the PS.

OTOH, Do you have a Antec SmartPower? Been my experience that they don't hold tolerences as well as the TruePowers. You can always pop in a different power supply and what that reads.

Mac

 

[FFactory0x]

yes using smart power. Came with sx835II. BTW if i oc my cpu and graphix card which rail will that use and will it go up/down

 

[Macro2]

Try it and see. If it's a good PS it shouldn't change too much at all.
Remember you have voltage regulators on the board supposedly delivering the right voltages to baord components. They can still deliver the right voltages despite PS voltages being "off" as long as the PS voltages are within an envelope. Also the peripherals like CDROMs, HDs etc can run on a range of voltage. Just like your appliances at home.

Mac

 

[DayLaPaul]

just to clarify when i said there is no 3.3v on the 8rda, i meant in the monitoring programs. obviously every psu has a 3.3 rail.

 

[FFactory0x]

so how can i found it???

Also what is the -12v rail??? Thats the only one that seemed low or high. under full prime95 load -12.923