Voltages low on +3.3 & +5v?

[AmdEmAll]

I am overclocking my Athlon XP 1600+ on a Epox 8kha+. I'm using a 400watt antec psu. I'm at 10.5 x 155 right now for a speed of 1626mhz. I checked my voltages using motherboard monitor and sisoft sanda and they are the same. My 3.3 and 5 volt lines seem to low. I'm getting 1.55v on the 3.3 line and 4.60v on the 5.00 line. I'm thinking this might be causing my instabilities when I overclock past past 1700Mhz. My ram is 512mb corsair pc3500. The ram voltage is at 2.7 and cpu is at 1.87. Is this fine or should I get a new psu?

 

[xpeter]

Originally posted by: AmdEmAll
I am overclocking my Athlon XP 1600+ on a Epox 8kha+. I'm using a 400watt antec psu. I'm at 10.5 x 155 right now for a speed of 1626mhz. I checked my voltages using motherboard monitor and sisoft sanda and they are the same. My 3.3 and 5 volt lines seem to low. I'm getting 1.55v on the 3.3 line and 4.60v on the 5.00 line. I'm thinking this might be causing my instabilities when I overclock past past 1700Mhz. My ram is 512mb corsair pc3500. The ram voltage is at 2.7 and cpu is at 1.87. Is this fine or should I get a new psu?

what are the readings from BIOS?

 

[AmdEmAll]

From sisoft sandra and motherboard monitor. I'll check the bios voltages and reply back.

 

[xpeter]

check also this thread http://forums.anandtech.com/messageview.cfm?catid=28&threadid=934808 there you will find some info about possible readings problems from software under windows.

 

[AmdEmAll]

Ok I fixxed my 3.3 reading. It was set wrong in mbm. I set it to read off of the epox 8kha voltage config instead of standard. Everything else was set correctly though. Now the 3.3v reads 3.25 so I think thats ok now. This is kindof weird but since I restarted my 5v has gone up to around 4.70 when running prime 95 now. Is that to low still?

-Also bios voltages showed the same, 5v is a little higher in there, maybe in windows there is more drain?

 

[xpeter]

Originally posted by: AmdEmAll
Ok I fixxed my 3.3 reading. It was set wrong in mbm. I set it to read off of the epox 8kha voltage config instead of standard. Everything else was set correctly though. Now the 3.3v reads 3.25 so I think thats ok now. This is kindof weird but since I restarted my 5v has gone up to around 4.70 when running prime 95 now. Is that to low still?

-Also bios voltages showed the same, 5v is a little higher in there, maybe in windows there is more drain?

Your values are within specs so don't worry about it. I think that the lower voltage values under Windows compared to BIOS
are cause because of the load.

 

[AmdEmAll]

Ok, thanks for your help I think I should unlock this cpu because my agp and pci buses are WAY out of spec. It's causing data corruption.