is this voltage drop within spec

[Magi]

I throttled back my OC because i couldnt keep the Vcore stable at anything above 220 fsb. I know the p4c800e has some droop problems but i wanted to check out some of these other voltages and make sure they are withing spec. Antec Trrue 480. These voltages are taken with everything at stock speeds.

12V rail : 11.855 - 12.646
5V rail: 4.892 - 4.945
3.3V : 3.216 - 3.392
VCore: 1.536 - 1.616

 

[Deadlierchair]

The change on the 12 is quite large, that's definitely not good...your 5 V is okay and the 3.3 is okay too, but overall I wouldn't give an A+. How are you measuring these values? You should double check with a good multimeter in case your motherboard readers aren't very accurate.

 

[codeflux]

those 12V numbers is horrid. never seen that much spread. get a new PSU before things get worse.

 

[HeThatKnows]

Not necessarily the PSU's fault. A loose or dirty ATX connector will give voltage drops at load. The 12V line needs to be checked with a multimeter.

 

[airborne_mtrs]

My +12v jumps between 11.45 and 11.52. Is that bad? Is it susposed to be over 12V? I have a thermaltake 420W. I thought it was a pretty good one but after reading this I am not sure anymore.

 

[ryuji]

My +12v jumps between 11.45 and 11.52. Is that bad? Is it susposed to be over 12V? I have a thermaltake 420W. I thought it was a pretty good one but after reading this I am not sure anymore.

the spec is +-5% if memory serves me right...

also on the note of using mbm... mbm reports my 12v rail being lowish.. like 11.40 but measuring with multimeter i get 12.30 proportional for other rails but less drastic

 

[Magi]

where do you check the voltage with the multimeter? There are 2 lines as well...the large normal mobo connector and this 4 pin type connector? Are both of these the 12V lines? Where do i connect with the multimeter to test?

 

[starhawk]

I throttled back my OC because i couldnt keep the Vcore stable at anything above 220 fsb. I know the p4c800e has some droop problems but i wanted to check out some of these other voltages and make sure they are withing spec. Antec Trrue 480. These voltages are taken with everything at stock speeds.

12V rail : 11.855 - 12.646
5V rail: 4.892 - 4.945
3.3V : 3.216 - 3.392
VCore: 1.536 - 1.616

sounds ok... the 3.3v line doesn't indicate any major problems (this is where you look first cuz it's dropped off the 12v line)... tho the 12v rail sounds a little w0nky. i would recommend implementing a custom smoothing solution for that (can't use a 78L12 chip cuz they can't handle more than 1a @ 12vdc)

 

[starhawk]

where do you check the voltage with the multimeter? There are 2 lines as well...the large normal mobo connector and this 4 pin type connector? Are both of these the 12V lines? Where do i connect with the multimeter to test?

the large mobo connector is called an atx connector. the 4pin connector could be one of two things. it is either the mobo's 12v p4 connector, or you are talking about a molex connector.

and, yeah... unless you've been doing a little work they should all be white.

a spare molex connector is the typical choice to measure voltages.

 

[Magi]

The molex connectors off the 12V line? If they dont show the same drops then the 12V could just be reporting poorly in the Asus PC Probe?

 

[starhawk]

use a multimeter to measure the voltages.

this can be obtained from the radioshack down the street for $15. it's a basic troubleshooter for psu headaches.

 

[starhawk]

The molex connectors off the 12V line? If they dont show the same drops then the 12V could just be reporting poorly in the Asus PC Probe?

yeah... tho i would be going by multimeter only...