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Voltage/ PC Probe

By mauii ·
I have a ASUS P4PE mobo with a Intel P4 CPU 2.4GB and when I boot up the BIOS tell me to enter BIOS and check Power Monitor.. once there I find that the +3.3 voltage is in RED and reading 2.99 and sometimes abit lower 2.97 and I have to tell BIOS todisable the reading in order to be able to boot into Win 98se..Once into windows I check PC Probe to see what is going on..the temperature is ok the Voltage Monitor is resding +12 @ 12.288 and the +5 @ 5.107 and the +3.3 @ 2.98 and 2.976 up and down.. the Vcore is at 1.632 the Threshold defaults are set @ 10%.. I have to change the +3.3 Threshold to the Max of 15% to keep PC Probe from popping up all the time while I am on my comp. In the BIOS the CPU is set @ 2400 MHz 18 x 133 which is right and fine,but that +3.3 bothers me... I got a new power cord-- didn't fix the thing... Greased and reset the heatsink and CPU... no luck..Am thinking that it may be the power supply 350W ...Any help wolud be great...Thanks....

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Voltage/ PC Probe

by djent In reply to Voltage/ PC Probe

Check specs for CPU on Intels site first. If setting is correct but supply voltage is low your assumption about the PS is probably correct. You can also try removing some peripherals like modem, NIC, CDROM and see if error stops. If so that would confirm weak PS.

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Voltage/ PC Probe

by mauii In reply to Voltage/ PC Probe

Removing devices did nothing..I think I'll just replace the PS..Thanks Anyhow...

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Voltage/ PC Probe

by sgt_shultz In reply to Voltage/ PC Probe

wow, that is cool, i didn't know you even got control over that setting...yes: i vote for a new power supply.
i wouldn't expect extra peripherals to drag down the voltage, just make the ps fail quicker...i would sure like to know if yanking off devices changes anything...

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Voltage/ PC Probe

by mauii In reply to Voltage/ PC Probe

Yanking off devices did nothing--just thought you would like to know....

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Voltage/ PC Probe

by TheChas In reply to Voltage/ PC Probe

Sounds like you need a new (higher wattage) power supply.

The 3.3 volt power comes from the power supply itself.

If you know how to use a volt-meter, you can probe the pins on the power connector, and verify if the 3.3 volts is indeed low.

I suspect that it actually is low.

You want at least a 400 Watt power supply for this system.

Make sure that the 3.3 volt is rated for at least 30 Amps, and that the combined 5 volt and 3.3 volt rating is over 200 Watts.

Chas

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Voltage/ PC Probe

by A_Welch In reply to Voltage/ PC Probe

Most likely replacing the power supply, which includes the 3.3V converter, will fix your problem.

However, if you want to be thorough and you have a voltmeter, you might check the 3.3V output with everything including the mobo disconnected fromthe power supply. The reason is that something on your board might pulling your 3.3V down (overloading it). If that is true then the new PS will do the same thing.

It might save some time and $ to find this out before you go get a new PS. If your PS is good then you have to figure out where the problem really is or replace the board.

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Voltage/ PC Probe

by wlbowers In reply to Voltage/ PC Probe

Replace the supply and in the process go to a 400watt.

The newer motherboards and cpu's demand more from the supplies.

Good Luck Lee

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