SpeedFan Voltage readings, Worries about PSU.

kevinflames

Member
Jun 11, 2004
41
0
0
SpeedFan 4.13 shows these readings


Vcore1 : 1.68V
Vcore2 : 2.67V

+3.3V : 3.26V
+5V : 4.17V
+12V : 11.90v

-12V : -9.15v
-5V : -4.75V
+5V : 4.62V
Vbat : 4.08V


now, should i be concerned about the low/high -12V reading?

in my case i have:

IDE hard drive
CD writer
9800pro 128mb 256bit
barton 2500+ (i want to up the fsb to 400 to get 3200 speeds with a better heat sink)
512mb ddr 3200 ram

3 blue led fans - they say 12V on them.

i dont think im stressing the 400W PSU , SUPPLIED IN THE CASE(supposedly a bad sign)
so i have an I-cute 400w psu.

case info : http://www.ebuyer.com/customer/products/index.html?action=c2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=59321


im also having heat problems(cpu at 57 atm, stock fan sink) i do not belive they are related.


thinking of buying a psu seperately but they seem so expencive at prices like £40 or £50


THANKX FOR READIN TEH TOPIC :D :)
 

Connoisseur

Platinum Member
Sep 14, 2002
2,470
1
81
your PSU can't handle the load or it's gone bad. In general, PSU's are spec'd to within 5% of their theoretical value. That means that all your rails should only vary + or - 5% regardless of the load. You seem to have a cheap psu that came with the case. bad bad idea. Get an Antec TruePower, Fortron, ThermalTake, Sparkle etc. or another name brand. Replace it immediately or things a lot worse than power fluctuations will happen to your components.
 

natto fire

Diamond Member
Jan 4, 2000
7,117
10
76
Does your BIOS have a PC health menu? I have learned that you canont always trust software to tell you mobo info. The no-name PS could be to blame though. You won't be doing much overclocking if your temps are that high stock.
 

Cerb

Elite Member
Aug 26, 2000
17,484
33
86
All but the +5v look good. But check the +12v and +5v with a meter before you go all crazy buying a new PSU. The BIOS is often off by a bit.

You should be able to find a Fortron FSP-300 for about $35 USD no sweat. As always, a quality 300w, like Fortron or Enermax, will power a hefty gaming rig with no problems, when a cheapo 500w PSU craps out.

If you aren't having stability issues, I wouldn't worry about it (though a good PSU would not be a bad buy).

Oh yeah, edit: The -5v and -12v aren't used for anything these days, and are being phased out. The +3.3, +5, and +12 are the ones that you actually use.
 

stillkicking

Member
Jun 29, 2004
78
0
0
I wouldn't use the numbers from Speed Fan. It has been discussed on other boards about how this otherwise excellent piece of free software seems to screw up when listing voltages. You should see my readings. It looks like the PSU is about to blow up. Check the readings in your BIOS and see what they say. I use Speed Fan solely to monitor several temperatures and that's it.