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voltage ripples as high as 46% !!!???!!!

BTRY B 529th FA BN

BTRY B 529th FA BN

Lifer
Sorry I have to do it like this. Didn't know there was a PSU section 😱

Text I'd like to continue the discussion in this section

To recap I'm just going to copy and paste my results with my troubleshooting trials.

I changed out my Asus P5Q Premium with a 8400 @ 4Ghz stable 1.20v, NB 1.50v, LLC enabled and RAM @ 2.1v (all within safe range for products) to this Q9650 I'm not sure if this was happening before or after but using HWmonitor by cpuz my voltage readings would fly off the charts. 0.00vcore - 2.04vcore, all the way through. Illustration but not a capture of minimums of straight 0.00 and super high volt jumps. I contacted the guy who is in charge of Hardware Monitor and he says they have been having problems with Asus boards, but sounds like to me he was trying to protect himself from getting into anything that he may be responsible for like suggesting some thing might be at fault like a mobo or PSU. But what contradicts that is on my Asus P5K-E board, there were never any fluctuations at all.

Asus P5Q Premium results testing RAM on 500w Liberty:
vcore
12v
3.3v

Results with Infiniti 720w:
vcore
12v
3.3v

I am testing now doing the MIX test OCCT at stock/auto voltages and speeds with 720w Infiniti

Results:
vcore
12v
3.3v

Ok, I tested out my P5Q3 board at stock voltages and speeds, all bios on auto using the 720w

Results:
vcore
12v
3.3v

Is it the PSU or mobo that has the problem???





 
Digital Multimeter. 5V and 12V can be read from a molex connector. I've never done the 3.3V myself, so I'm not sure where to read that one.
 
Originally posted by: BTRY B 529th FA BN
Great! Thanks 🙂
Click to expand...

I've a design a lot like the Asus P5Q Premium, it also exhibited the same identical symptoms you posted. Do you want to know what my problems was?
 
Originally posted by: BTRY B 529th FA BN
Originally posted by: beray
Originally posted by: BTRY B 529th FA BN
Great! Thanks 🙂
Click to expand...

I've a design a lot like the Asus P5Q Premium, it also exhibited the same identical symptoms you posted. Do you want to know what my problems was?
Click to expand...

Sure, what was it?
Click to expand...

I used a 16-phase power regulator which is adjustable in 3dB steps depending upon power demands very similar to Asus. Every time the steps kicked in or out they generated a huge amount of crosstalk causing false voltage spike readings.
 
Originally posted by: beray
Originally posted by: BTRY B 529th FA BN
Originally posted by: beray
Originally posted by: BTRY B 529th FA BN
Great! Thanks 🙂
Click to expand...

I've a design a lot like the Asus P5Q Premium, it also exhibited the same identical symptoms you posted. Do you want to know what my problems was?
Click to expand...

Sure, what was it?
Click to expand...

I used a 16-phase power regulator which is adjustable in 3dB steps depending upon power demands very similar to Asus. Every time the steps kicked in or out they generated a huge amount of crosstalk causing false voltage spike readings.
Click to expand...

No offense but I feel like saying "in english?" So what does that mean?
 
Originally posted by: BTRY B 529th FA BN
Originally posted by: beray
Originally posted by: BTRY B 529th FA BN
Originally posted by: beray
Originally posted by: BTRY B 529th FA BN
Great! Thanks 🙂
Click to expand...

I've a design a lot like the Asus P5Q Premium, it also exhibited the same identical symptoms you posted. Do you want to know what my problems was?
Click to expand...

Sure, what was it?
Click to expand...

I used a 16-phase power regulator which is adjustable in 3dB steps depending upon power demands very similar to Asus. Every time the steps kicked in or out they generated a huge amount of crosstalk causing false voltage spike readings.
Click to expand...

No offense but I feel like saying "in english?" So what does that mean?
Click to expand...

The 16-phase are in steps of 4-phases added on at a time as more power required, each step generated loud noises causing false voltage spike readings.
 
Even those 2.04v vcore readings??? I don't want it to fry my system/expensive chip. I've started trouble shooting a BSOD and came to this. I've checked RAM, NIC drivers, Audio Drivers. The reason why I've come to this is because my old P5K-E board never got any readings like this. (I think that board is a 8 phase) ...I think I may have answered my own question, but are you 100% sure? What tool are you using? And can I buy one to check it myself?

Thanks in advance for the help btw
 
Originally posted by: BTRY B 529th FA BN
Even those 2.04v vcore readings??? I don't want it to fry my system/expensive chip. I've started trouble shooting a BSOD and came to this. I've checked RAM, NIC drivers, Audio Drivers. The reason why I've come to this is because my old P5K-E board never got any readings like this. (I think that board is a 8 phase) ...I think I may have answered my own question, but are you 100% sure? What tool are you using? And can I buy one to check it myself?
Click to expand...

The symptoms are the same but the causes could be completely different, that's why I asked if you wanted to know my problem as I don't have the Asus.

The power stepping crosstalk noise leaked through to my on board ADC, causing false voltage spike readings which didn't exist in the actual power rails and was verified using strip chart recorders.

Originally posted by: BTRY B 529th FA BN
Thanks in advance for the help btw
Click to expand...

I can't really help you, I don't have your hardware to verify.

But have you check your BIOS settings? Asus BIOS might allow you to have manual control of the power stepping, could very well be something under the heading of EPU control for example... It can't hurt to look.
 
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