VCore voltage problem_+3.3V red.

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

you need to go to cmos to do that

Really?

Are we talking about the Asus P5LD2-VM motherboard, Zoltan?
(Zoltan is a C-o-o-o-o-l name!)

Because I'm looking at the motherboard manual right now, and state you are mistaken.

1) Use the Right Side Arrow key, and highlight the - Advanced - tab on top of the Main menu.

2) Use the Down Arrow key and highlight -
JumperFree Configuration
Press the Enter key.

Configure System Frequency/Voltage
AI Overclocking - [Auto]

Use the - key, (Minus), and move Auto to Manual
Use the appropriate arrow key, and highlight -
CPU VCore Voltage [ Auto ]
Press the Enter key.

There are 40 Voltages you can choose from.
1.7000Volts to 1.2875Volts.

Remember,
Use SMALL increments at a time. Do a 24 hour stability test.
(Small increment example, 1.7000V to 1.6875V )

If your system is stable for 24 hours, then you can come back, and change the Voltage one more small increment.
(1.6875V to 1.6750V)

Also remember; you are changing the Front Side Bus of the Processor. (FSB)
Change it TOO much, and your ram memory, and expansion slots will not work.

(Ram Memory typically operates at a frequency rate ('Speed'), of half of the FSB of the Processor.
Processor FSB is 800MHz for example? Ram Memory operates at 400MegaHertz.

Intel Core2 Duo E6300? 1066MegaHertz Front Side Bus.
{1066MHz FSB}
Ram memory? 533MHz)

Asus Support > P5LD2-VM > Download page,

http://www.asus.com/Motherboards/Intel_Socket_775/P5LD2VM/#download

For the - Select OS box, click on the blue Down Arrow, and choose WinXP. (Doesn't matter as you are just going for the manual)

Click on the + sign next to Manual (14)
Scroll the inside scroll bar down until you come to -

Version E2281 -
P5LD2-VM User's Manual for English Edition (E2281)

Click on the blue - Global
A PDF file version of the motherboard manual will come up.
Using the PDF file page number box at the top, go to;

Page 63 - 2.4 Advanced menu
Page 65 - CPU VCore Voltage [Auto]

http://www.techwarelabs.com/reviews/processors/e6300/

Overclocking article at the end. Just one of the hundreds of overclocking articles out there.

Regards,
joecoolvette

Vcore settings can usually be found in the bios settings menu. But be careful when playing around with those settings!

Hi glen909nwi,


Here's the configuration for that board. If your trying to overclock, you'll want to go with a higher setting.


CPUChiosei HT Voltace 11.20 VI
Allows you to set the pocessorhipset HyperTranspoit voltage.
Configuration options: [1 .20V] [1 .25VJ 11 .30V] [1 .35VJ [+1 .40V1 [+1 .45V] [+1 50V]
Chtoset Core Vo#aae f1.40V1
Allows you to set the dlipset core voltage.
Configuration options: [1 .40V1 [1 .50V] [1 .60V]
Ctitpset Slan&w Core Vo?taoe 11.40 VI
Allows you to set the diipset standby coe voltage.
Configuration options: [1 .40V] [1 .6OVJ
CIhVsef Fi-E Voitaae 11.50 VI
Allows you to set the dlipset PCI Express voltage.
Configuration options: [1 .50V1 [1 .55V1 [1 .60V] [1 .65V] [1 .70V1
CPU Vcore Offset Voltage fDisabdJ
Allows you to csable or set the processo vCore offset voltage.
Configuration options: [Disabled] [Offset lOO.OnIV]
ASUS M2N-SU Deluxe

Just got to into your Bios and reset the factory settings and It will reset the changes you may have made.

hi- i would say that it is a heat issue. check the temps of the cpu-also check some of the bios settings, my asrock board has some bios settings that are for safe overclocking-like bumping up voltage. set these to default.-one is called vccm, then vlink,then over vcore. vccm set-to high- vlink set to normal- over vcore -disable. but do check the cpu and if you have some heat sink compound- take the heatsink off and reinstall it with the new compound. make sure you clean the old compound off. if you need more help-reply good luck!

First I would make sure all the power plugs are properly plugged into the motherboard and all other devices.

If that does not solve it then I would get the Power supply tested at a local PC shop. Or just get a new decent power supply. Looks like the Power supply without a doubt is defective.

If you have an adjustment for the VCORE voltage in your bios, bring it up by one value, then try overclocking the CPU.

I notice that the solution from myself was posted as a comment. This may prevent some from locating it. I reposted as a solution under a different name. Hopefully it would help those have the similar problem.

In addition to the following solution, you may also set the CPU core voltage to your CPU specification. My Q9400 VCore specification is 0.85~1.3625V. The BIOS auto setting sets it at 1.1625V. I just manually set it to 1.3625. CPUZ shows that C1E and stepping will lower it as necessary. It should provide the CPU more juice when it needs it, while keeps it cool when it is idle.

---------
Ok, this is myself (Recnelis). I may find the solution for this problem. The trick is to use the beta BIOS 18 and increase the "CPU VTT Voltage" in the BIOS "SoftMenu Setup".

The beta BIOS 18 could be found here:

http://forums.hexus.net/abit-care-hexus/149415-bios-updates-intel-e0-stepping.html

To make the long story short, BIOS 16 is relatively stable for Q9400 but could not recognize the CPU correctly. BIOS 18 (beta) can recognize the CPU correctly but is very unstable - random application crashes, blue screen, freeze, etc.

Here is some "history" about the issue. Fatal1ty FP-in9 SLI uses nVidia 650i SLI. If you google "nVidia 650i 45nm quad core", you will find a lot of people has the similar issue. Many websites suggest that it is because of the difference between the release version of the Intel 45nm quad core and the one sent to nVidia for testing (due to that nVidia turned off Intel's request for acquiring its SLI technology according to some rumors). Some forums suggest voltage is among those differences.

In the BIOS, you may notice that the voltage settings in the "SoftMenu Setup" are different from the actual voltages in the "PC Health Status". In my case, the actual voltages are similar but lower than the settings. One exception is the "CPU VTT Voltage". The BIOS automatically set it at 1.2V, while the actual voltage in the "PC Health Status" shows it is only a little above 1.0V. That is more than 16% drop. 1.0V is too low to keep the system stable. Guys in o/c world usualy increase the "CPU VTT Voltage" up to 1.5V to keep the system stable. Since I'm not o/c'ing my system, I do not go that far. For my particular case, when I set it to 1.31V in the "SoftMenu Setup", the actual voltage in the "PC Health Status" is 1.2V, which is what the auto setting trys to do. For your system, you may want to increase the setting one notch at a time to safely increase the actual voltage reading.

Before this tweak, my system cannot even run more than 30 minutes under BIOS 18. After this small tweak (under BIOS 18), my system becomes a whole lot more stable (no crash so far after a few days of using). It passed RealTemp torture test (using Prim95) many many times without a single hiccup. I tried to post this at least one week after the system runs in stable status; but I think some of you may still be searching for the solution.

More good news for those who want to keep the Fatal1ty IN-FP9 SLI/Q9400 for a while: I even installed Windows 7 RC (build 7100) with the new nVidia Windows 7 mobo driver and graphic driver. Everything is running smoothly so far.

Good luck to your tweaking.

Recnelis