what are your max3 full load voltages read in windows?

veryhumid · Jul 18, 2004

could you post your bios cpu voltage setting and what it reads in windows when you are at full load and idle? thanks! I'm running a P4 240fsb 1.525 in bios and it is read about 1.45 in speedfan. worried the drop is too big... what are you guys getting? thanks for the help!

Zebbo · Jul 18, 2004

I see you haven't noticed these IC7-MAX3 voltage things. If you set your vcore from bios to 1.5250, it is at idle ~1.50V and full load ~1.45. And it goes all way to 1.6250 like this. If you set your vcore to 1.6500 from BIOS, it is at idle 1.65V, and at full load 1.6V. Everything from 1.5250 to 1.6250 is lower 0.025 than you set all way up to 1.6250.

veryhumid · Jul 18, 2004

i am aware that that setting in the bios is usually the idle reading in windows. however i am set to 1.525 in bios but i get 1.49 at idle. had some bad video display problems today, i guess i will send the board back. hopefully i can send it back even though i had an sp-94 on it. crap.

Zebbo · Jul 18, 2004

It should not broke your warranty because you have SP-94 on it?

crotale · Jul 19, 2004

Remember: The voltages shown in MBM/SpeedFan/etc. are not accurate.
People report dead-on stable vcore and vdimm voltages when meassured with a multimeter

veryhumid · Jul 19, 2004

interesting i did not know that. do you know of an article or review with some more info about that?

veryhumid · Jul 19, 2004

could someone humor me and give me what load idle voltages they have at

cpu: 1.475
and
cpu: 1.525

with 1.475 i get 1.39 load, 1.42 idle

with 1.525 i get 1.45-1.46 load, 1.49 idle

thank you!

The problem with the weird video may have just been too high an agp voltage. i was really really really frusterated that it happened and i would appreciate if someone could take those voltages for me to see if i can rest at peace.

:attn:

Sjaak · Jul 19, 2004

CPU: 2.8C @ 3.71Ghz 265FSB

Voltage: 1.625 bios, 1.600 mbm

Temperature (mbm readings): idle: 45 load: 62

veryhumid · Jul 19, 2004

is that mbm cpu voltage at load or idle? could you post both? thanks sjaak!

Sjaak · Jul 19, 2004

i cant find a pattern between load and idle - its always somewhere between 1.588 and 1.612

veryhumid · Jul 19, 2004

Sjaak said:
i cant find a pattern between load and idle - its always somewhere between 1.588 and 1.612

okay thanks, i'll put it up there tonight and see if mine are similar.

Rich_L · Jul 19, 2004

Veryhumid, I think you asked for some conformation on cotale’s statement about the undervolt myth. This is from a review on the IC7 at Lostcircuits but I’ve seen other reviews on other motherboards that say the same thing.

http://www.lostcircuits.com/motherboard/abit_ic7/5.shtml

Hardware Monitor Voltage Reporting vs. Real Voltages
In the hardware monitor / PC Health Status menu, all voltages show somewhat lower values than set, however, when measured directly at the current source, each voltage was within the second decimal correct as defined in the SoftMenu. That is, a Vre setting of 1.55 shows as 1.50-1.52V in the HW monitor at the voltmeter we had a stable read-out of 1.558V. The same goes with the DDR voltage, a setting of 2.7V shows as 2.65V in the HW Monitor but gave 2.704 - 2.705 on the DIMM slots. In other words, the voltages are exactly where they are supposed to be but there is, once again, a reporting error in HW Monitor.

veryhumid · Jul 19, 2004

very very nice article, I will be sure to see if my comp agrees that when bios is set to 1.55, it will read 1.50-1.52. Thanks for digging that up!

Sjaak · Jul 20, 2004

MBM reads everything just right, its the chip on the mobo that provides the voltages wrong as readout

crotale · Jul 20, 2004

I just hooked up a DMM to my vdimm read out.

Idle:
MBM: Fluctuates between 2.77 and 2.80 vdimm
DMM: Rock stable at 2.84, havent seen and jump to 2.83 or 2.85 in the last 5 minutes.

Load: (dual instances of Prime)
MBM: Fluctuates between 2.77 and 2.80 vdimm
DMM: 2.85 vdimm, bumps instantly 0.01v from load to idle, then rock stable.

I really need a DMM with better resolution.

(Tests done on an IC7-G, vdimm modded, Antec TruePower 430W)

Rich_L · Jul 20, 2004

Sjaak, if you saying that MBM reads the HW monitor chip correctly and the HW monitor chip is reading the voltages on the mobo wrong then I agree. If you are saying that voltage on the mobo is what MBM says, then I disagree.

veryhumid · Jul 20, 2004

Rich_L said:
Sjaak, if you saying that MBM reads the HW monitor chip correctly and the HW monitor chip is reading the voltages on the mobo wrong then I agree. If you are saying that voltage on the mobo is what MBM says, then I disagree.

yeah he is saying that the chip is incorrect. the program doesn't know anything by itself, it just pulls numbers off the winbound chip i believe.

crotale thanks for going to all that trouble! i'm not worried about my vdimm too much, and since you have a modded board that information isn't really useful to me. any chance you can get a vcore reading? I know it is from one of the inductors just above the cpu socket... i saw it somewhere before. i'll go see if i can find the place where the cpu volts can be measured.

Sjaak · Jul 20, 2004

veryhumid said:
yeah he is saying that the chip is incorrect. the program doesn't know anything by itself, it just pulls numbers off the winbound chip i believe.

exactly. i dont know anything about the chips, mbm just passes it through to us

KrisMCool · Jul 20, 2004

Here is an example of MBM5 readings taken with my Max3 and 3.0C. Results will vary between boards and CPUs, but these readings are close to what others are seeing with similar setups.

BIOS___________Idle___________Load
Auto/1.525_____1.488________1.44-1.456
1.55___________1.504_______1.456-1.472
1.575_______1.536-1.552_____1.488-1.504
1.6_________1.568-1.584______1.52-1.536
1.625________1.6-1.616______1.552-1.568
1.65________1.632-1.648_____1.568-1.584
1.675_______1.664-1.68_______1.6-1.616
1.7_________1.696-1.712_____1.632-1.648

veryhumid · Jul 20, 2004

KrisMCool said:
Here is an example of MBM5 readings taken with my Max3 and 3.0C. Results will vary between boards and CPUs, but these readings are close to what others are seeing with similar setups.

BIOS___________Idle___________Load
Auto/1.525_____1.488________1.44-1.456
1.55___________1.504_______1.456-1.472
1.575_______1.536-1.552_____1.488-1.504
1.6_________1.568-1.584______1.52-1.536
1.625________1.6-1.616______1.552-1.568
1.65________1.632-1.648_____1.568-1.584
1.675_______1.664-1.68_______1.6-1.616
1.7_________1.696-1.712_____1.632-1.648

That is perfect! thank you for that. My voltages yo to 1.575 look similar to that, so i guess my board is okay! I appreciate you find or testing to get that for me. fold on!!!

what are your max3 full load voltages read in windows?

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