RAM voltage readings with DMM vs. Software on X58 Pro-E

I almost fell over with shock when HWmonitor and Speedfan both reported my RAM voltage spiking over 3volts when running Prime95. When idling the voltage readings fall to about 0.6v and jump around during use.
I set my RAM voltage in BIOS to 1.5v but software doesn't report that voltage at all.
So I grabbed my DMM and measured the voltage on the Mobo directly and found that the voltage is in fact exactly 1.5v
How is it the software can show variations in voltage from 0.5 to 3.7 volts when it's ALWAYS 1.5v when measured directly from the board with a meter?
I measure from the silver tab (center leg) of what I'm sure is a kind of transistor or FET, which I know is v output.
How can I trust any of the other voltage readings then? Especially the CPU v.

Quote from: Jack on 14-July-11, 21:56:29
Neither one of these utilities is actually able to correctly monitor the actual memory voltage. Just ignore those readings. They are absolutely inaccurate no matter how you look at it (@3.7V you memory modules would probably simply vaporize and @0.6V your system would not be running anymore). These readings are IMPOSSIBLE readings.
Don't trust any memory related voltage readings that you get from third party software applications.
There you go.
That's what I figured, I wan't suspicious until my RAMv hit over 3.5v nearing 4v when stressing with Prime95, I couldn't understand how it was so high and still working.
I mean, all the voltage readings on speedfan show what look like normal values when I know full well they're not the ones I manually set in the BIOS. It's frustrating.
And yes they're all the latest releases and by BIOS is up to date with new firmware but NO my OS is still vista 64 SP1 with absolutely NO updates installed. Though I seriously doubt that'll change any voltage readings I get in speedfan.
I'm almost tempted to colder connections to all the voltage points on the Mobo for easy DMM connection. But I probably won't cos it's not worth the trouble.

Similar Messages

Voltage readings with speed fan

This may be a case of too much knowledge and not enough education. I recently got Speed Fan after linking into this site searching for information about my mobo's temps. What is bothering me are Speed Fan's reading for voltages. They seem to be way out of line. The mobo bios lists the following:
+3.3 3.28
+5.0 5.06
+12.0 12.2
-12.0 11.83
These flucuate slightly as I watch them.
Here are the readings from Speed Fan. I'm going to insert a picture and hope it works. If not then I will manually enter the numbers in a following post. I haven't a clue what all of the numbers refer to. Some seem in line while others are off the map. Which ones refer to the power supply? Thanks.
\image{speed fan}

OK, the picture didn't work. Here are the Speed Fan voltage numbers:
Vcore: 1.49V 5Vsb: 4.96V +5V: 6.71V
+12V: 12.46V Vbat: 0.00V +12V: 16.10V
3.3V: 3.06V COREA: 3.36V -12V: -8.43V
Vcc: 4.99V COREB: 3.36V -5V: -2.89V
Vin2: 0.00V +3.3V: 4.43V
Why are these numbers, some of them anyway, so extremely different than the ones I am getting in PC Health in my Bios?
Here's the rest of the data given also:
CPU 47C
Temp3 39C
HD0 40C
HD1 39C
Fan01 5233 RPM
Fan02 2961 RPM
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Trouble getting consistent voltage readings with LabVIEW using a 1102/B

Here's the situation:
I have an optical sensor with reflector that I'm using these to determine the velocity of a rotating wheel. (actually it's a spool of cable)
no beam reflection = 0 Vdc (actually it's floating from 0 - 2 volts)
beam reflection = 10Vdc
This is hooked up to an 1102/B channel configured for reading voltage in MAX
Now, everything is fine at slower speeds. The trouble is when the velocity increases...
I'm using a DAQmx read VI in LV 7.1 to read the virtual channel I set. It's in a while loop, outputting to a chart.
The reads are missing reflections at higher speeds, but only seems to happen in LabVIEW. The cable needs to be letting out at 2 ft/sec.
Now, the sensor has an indicator light that says when it's seeing the reflected beam. When I spin the wheel by hand (faster than the necessary speed) the sensor says it's picking up the reflectors (2 at 180 deg apart). When I open MAX, and the test panel for that channel, I see that I have to increase the "sampes to read" to about 5k and the "rate" to 5kHz. At that point, MAX sees every beam reflection as well.
Within LV, it still misses... even with the loop delay set to 5ms. I'm hesitant to go much lower with the delay...
The final destination for this reading function will be in a fairly large VI with a lot of serial communication to external instruments.
Anyone have any advice?
Thanks!
Chuck

Hi Chuck,
Looks like you are configuring a DAQmx task/global channel
My suggestion would be why not use any continous voltage read examples you will find in the examples shipped with LabVIEW?
Go to examples>>Hardware input output>>DAQmx>>Analog measurements>>Voltage in this folder find and use the example VI cont-acq-volt-int-clk.VI ( named something like that ) read its documentation to know how to use it
Or find the VI here
any doubts, do get back

Freezing up with x58 Pro and G.Skill DDR3-1600 RAM

I just recently updated to BIOS version 7.1. When I tried to use the "Extreme Memory Profile" or XMP in order to have the mainboard recognize the RAM at it's rated speed, my system became unstable and quickly freezes after boot up. I have G.Skill DDR3-1500 PC3-12800 (CL9-9-9-24) RAM, Core i7 920, MSI x58 Pro. The only setting that recognizes my memory and allows my computer to run with stability is when the RAM is "underclocked" to 1333Mhz. Any tips on how I can get the mainboard to run my memory at it's rated 1600Mhz speed without my computer crashing? Any advice would be greatly appreciated!

Hi panetrez & welcome to the forum. Welcome to the world of 'rated' but in reality slower chipped memory modules. In many tests, RAM at 1066 against RAM at 1333, or even 1600, was only around 1-2 FPS different. System performance I believe, gets it's biggest boost from CPU speed & the quality of the VGA card.
The 'sticky' on initial 1066 memory speed is correct with Eclipse & Platinum, but the X58 Pro, if 1333 or higher rated memory is installed, does set the RAM at 1333. This was proven on two recent builds I was involved with. One had 1333, & the other 1600, & both ran at 1333 at boot-up. Both of them also initiated with 6.4GT.
If you would still like to run your RAM at 1600. Start a new thread in the 'Overclocking & Modders Corner' of the forum. Some adjustments in the bios will be required.

Z77A-G43 XMP RAM Voltages

I have some Crucial Ballistix 1866 ram installed in my Z77A-G43 mobo and was wondering if the motherboard follow ALL the voltages listed in the XMP profile if XMP is enabled.
Per readings from AIDA64, the XMP profile states a memory voltage of 1.5v and memory controller voltage of 1.3v. If I enable XMP in the bios, does that mean the motherboard will adhere to these voltages? I have no problems with 1.5v memory as that is standard but the memory controller voltage of 1.3v is extremely high. Also, which voltage is the memory controller, is it VccI/O (Vtt) or VccSA (IMC) on a Ivy Bridge CPU?

It usually sets what it reads off the modules programming for DRAM V., timings, and Command Rate. Both I/O and SA are related to the memory operation. I can run RAM at 2800 with only I/O of 1.09v's and SA around 0.970v's, so 1.3v's is way higher than needed IMO.
Quote
Also, which voltage is the memory controller, is it VccI/O (Vtt) or VccSA (IMC) on a Ivy Bridge CPU?
Download the applicable Intel datasheet(s) for the CPU and chipset, and they will tell you everything you need to know. IMC? It stands for 'Integrated Memory Controller'.
>> Intel <<
Added: It makes it hard when we can't see a complete signature or listing of all the systems components and hardware. In this case, the CPU is not known, which makes a difference what the IMC natively supports.

K9N Platinum Ram Voltage??!

Hello dudes!
Can someone tell me what ram voltage K9N Platinum is?!
O ill buy some memories, with 1.9 or 2.0v... and just wanna know what is ram voltage of this mobo...
i know asus m2n-e max is set to 1.95v... but dont know about K9N platinum...
So... if anyone can help me, i ll aprecciate..
tnkz a lot!
Ahhh... almost forget... is OCZ compatible with this mobo??!
Tnkz a lot!

Quote from: Steyn on 12-October-06, 04:41:12
I have the K9N Platinum motherboard aswell, and the standard DDR voltage is 1.80
OK, let me make it clear. there is no standard voltage on the mobos. the default voltage depends on the memory you are using. different memory modules will default at different voltages, as per the data that the manufacturer placed in their SPDs.
if you are talking about JEDEC default voltage for DDR2, then yes, it is 1.8V, with a maximum of 2.3V. you can read about timings and voltages for the JEDEC standard here:
http://www.jedec.org/download/search/JESD79-2C.pdf

Over 2 Hours To Export a 10 Minute Video Even With Other Editing Software

Hi, I am having a problem with EVERY edititing software I have used. Recently that is. Anyway heres the deal. I got a new computer and it has been an amazing PC. It has a sticker on the front that says HD video editing as in it supports it. Which it very well does. Within the last couple weeks, I have had problems with editing my videos. I usually render 5 to 15 minute videos since I do YouTube. That would take between 10 and 30 minutes. Now, these videos are taking almost 3 hours give or take just to finish rendering. I have no idea why. It all started when I changed the settings in MSCONFIG to have maximum memory. I restarted my PC and got a hardware error. So I went into safe mode and undid what I had done. I also took out the RAM, and CPU to see if that was a problem. I then put it back in of course. I don't know every knick and cranny of Adobe premiere so please be very descriptive. I also remember that I was having trouble with the fan of my CPU. I couldn't get it to lock back down on the mother board. Could that be a problem? It isn't lock in on all 4 parts. Only 2 I believe. Any help is appreciated. Thanks in advance.

Dumb me haha, I didn't even think of puttin in system info. I believe thats what you were asking? I am using Adobe Premiere CS6. I don't know what version though.
My system specs are as followed
Pentium Dual Core CPU E6300 @2.80GHz 2.79GHz
RAM: 4.00 GB
64 Bit Windows 7
Nivida Geforce 210 Video Card
The video files I render are M2TS and they are recorded with the Haupaugge Colosus @ 1280x720 in Arcsoft Total Media ShowBiz.
I render them with adobe premiere in H.264 in 1280x720 @29.97 FPS with a Bit rate of 2MB/s

Aquisition of a voltage Signal with PXI 6713

Hi.
I want to make voltage aquisition with a PXI 6713 card. I take the Channels ai16 to ai33. The voltage at the clamp is 3.886VDC ( measured with a DMM ). When i measure the voltage and calculate it into a current ( see my applikation atteched ) the result is something between -10 and -24mA?!?!?
Are the settinges in the DAQmx Express-VI "analog voltage aquire" wrong or could it be another Problem?
My settings are:
RSE
voltage measuring from 0 to +8VDC
N Samples
I hope of yous Answer.
Thanks
Attachments:
analog_voltage_aquisition.jpg ‏33 KB

Is it a trick question??
First of all, Looks like you mentioned the card wrong PXI 6713 is an AO card, without any AI channels
Which card are you using??
Are you connecting a 390 ohm Resistance on your connector block to convert current signal to Voltage equivalent?? ( Sounds like you are not )
Are you measuring the Voltage correctly in the first place??
if you are not, check if the signal is connected correctly for RSE mode
Hope this Helps
Regards
Dev
Message Edited by devchander on 07-28-2006 07:35 AM

Upgrading W510 with Colorimeter, software?

My W510 came preconfigured without a colorimeter but I'd like to have one since I will be dealing with prints.
First question - is it worth the hassle? I know there are software solution but I've also read somewhere that it hard to calibrate with sliders and software solution might. Thoughts?
Let's say I am decided on buying the colorimeter for my laptop. Is it better to buy a stand alone one or buy parts to install it in the laptop? I reckon parts are not customer replaceable and I need to visit a service center, right?
And the last thing - If I went through and installed a colorimeter in W510, do I need to dish out another $100 USD for huey pro software? It probably come preinstalled on W510 with colorimeter but what if I upgrade? I wasn't able to find it on Lenovos driver page
T540 i7 4700MQ, GT 730M, 8GB RAM, Win7
Solved!
Go to Solution.

If you actually managed to get the hueyPro hardware for the W510 as an individual item then the software (from Lenovo) will work. However mine is a little flacky and am trying to get it replace ... Lenovo do not yet have a part number for it - the listed keyboard bezzel comes with a hole for the sensor!
I think I would get an external sensor like the x-rite munki ... it's a lot more versatile ... so you can calibrate you external monitor too and even a printer.
If you are serious about your prints then you need a good sensor.

How to do a DMPs full inventory (including serial number) with DMM applications

I need to get all DMPs serail number installed on a customer Site.
How to do that with DMM applications?

Hi Thierry,
I'm afraid the serial number of the DMP is not tracked in the software, so it's not possible to check it remotely. Your only option will be physically looking at the sticker on each DMP
Regards
Daniel

Im guessing these Voltage readings are incorrect. (K9N2 Platinum)

First off my system:
K9N2 Platinum
AMD Athlon 64 X2 5000+
Rosewill 500 (Recieving a PC Power and Cooling SILENCER 750W tomorow)
Anyways, the voltage readings for this board are way low. Though i havent had a single shutdown, or lockup due to low volts, even when oc'd..
For the most part ill let the screenie do the talking.
The Vcore reads a bit high and gets higher under load
The VRAM,Vchipset, and VCC1.5V all read way low.
everything else seems fine.
And a stable oc from earlier. http://valid.canardpc.com/show_oc.php?id=498491

Ok heres another one.
I set my CPU voltage in the bios for 1.325(the lowest setting)
And when the pc is idling it shows 1.34. At 100%CPU it shows 1.37...
Is movement like that normal? Or just a sensor/software/calibration/offset issue?

Voltage readings from transducer

Hi guys, I am currently stuck in here. I am doing a program that can take voltage readings from transducer using three-loop structure.
I have a layout for that in my front panel. I am not sure if I am on the right track. Can give me your opinions on this?
Many thanks!!!
Regards
Nic Ho
Attachments:
Simplified_prog.vi ‏30 KB
Simplified_prog.vi ‏30 KB

I get your point. What I am trying to do here is I first select a few channels. When the program is running, the total no of channels and the binary value
are displayed. By looking at the binary value, I am able to tell which channels are light on. Basically my objective is to get voltage readings from the transducer and save the data. However I like to do an "Initialise" before starting the program. In addition, I am looking on ways how to set timing for scan and data log for eg 0.5 hr, the panel will show this particular channel reading? U guys have any clues on this? Do let me know if you have problems viewing the file. Many thanks!!!
With Warmest Regards
Nic ho
Attachments:
VI simplified version.vi ‏82 KB
Shell Main States2.ctl ‏6 KB
UI Msg Q Functions.ctl ‏5 KB

Voltage alarm with PCI Alert III

Hi,
I have installed a 845eMax motherboard with Pentium 4 2.0. The 3.3v voltage continously goes down below the 2,93 threshold in the PCI Alert III software. Is this dangerous? I have recently bought the computer and I could change the motherboard if it were broken.
Thanks.

I think the PC Alert III is a quite unexact device and cannot be trusted. It has only informative function.
I had before an 250 W PSU and changed to Enermax 433 W.
I have exact the same voltage values with both PSU s.
V core 1.71-1.74V
3.3V 3.21-3.31V
5 V 4.92-4.95V
12V 12.00-12.10V

Ram voltage problem

okay, I finally got up enough gumption to do the wire trick to unlock my 2400+. That being done, I pushed the fsb up to 180 (With kingston 2700 valueram) with moderate stability.
Jedi knight 2 is a really oc sensitive game, so I cant play it at 180. My question is, why the heck can I not adjust the ram voltage. Every time I try to set it to 2.7, it defaults back to 2.6. No matter what I do.
Frustrating
Wise

Quote
Originally posted by Wiseblud
okay, I finally got up enough gumption to do the wire trick to unlock my 2400+. That being done, I pushed the fsb up to 180 (With kingston 2700 valueram) with moderate stability.
Jedi knight 2 is a really oc sensitive game, so I cant play it at 180. My question is, why the heck can I not adjust the ram voltage. Every time I try to set it to 2.7, it defaults back to 2.6. No matter what I do.
Frustrating
Wise
Welcome to your bios. Hopefully MSI will change this - it's a drag. But for now, there's nothing you can do - I think.

P6N Sli-Fi cannot up RAM voltage?

Hi All.
I've read through my motherboard manual and unless I'm missing something simple the BIOS will not allow me to change the memory voltage to anything above 1.8v. It stays set to AUTO. I can change the CPU voltage, but not RAM voltage. Is this because the Kingston Ram stick I have in it will not allow higher then 1.8v, or am I doing something wrong? I hit enter to select, nothing happens, I use the + and - simples and cannot adjust.
Basically I have some G.Skill ram that won't post and I just wanted to try to up the voltage to 1.9v and see if I could use my 2-1gb G.skill sticks before I RMA them for some Ram listed in the supported section. Figured it might be worth a shot to attempt to get this ram to work.

Hey there Spafra,
You probablyalready got your problem solved,but just in case...
g.Skill rates your DIMMs at 1.8 - 2.0v, so you are safe to up the voltage within that range(to include 2.0v). If they still fail to boot at he higher voltages, you can still RMA them through g.Skill. That is, if the mobo boots with the Kingston or other 1.8v DIMM.
I have different RAM, though they are rated 1.8-2.1v, the mobo booted them fine with the 'DRAM Voltage' set at 'auto' (actually, with no voltage specified in the field).
Boot to BIOS Setup with the Kingston ram, if necessary, set your voltage to whatever you decide on, make any other changes you like, then press <F10><ENTER> and when the screen goes black turn OFF the computer AT THE PSU. Unplug the power cord from the computer, as well as the 24pin ATX and 4/8 pin CPU Power connectors (per the manual), Change your RAM out for the g.skill, reconnect, and hit the 'START' button.
Hopefully it'll boot ok.
If not, you may have to disable 'Execute Bit Disable' in the >>Advanced settings >CPU feature > Execute Bit Disable [DISABLE] menu until you have a successful boot.
TonyB.
P6N SLI Platinum, MSI
E6400 @ 2900.0MHz (8x362.5)
w/Sythe Ninja plus Rev. B
2GB Patriot PC-6400/DDR2-800 PDC22G6400LLK
XFX Fatal1ty GeForce 7600GT
2xIDE HDD
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RAM voltage readings with DMM vs. Software on X58 Pro-E

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