Question about MSI KT4V (MS-6712) Motherboard

2 Answers

VIA CPU to AGP Problem with 3Gb and Vista


I would be grateful if someone could please help me with the following problem I am experiencing with my PC which I have been fighting for months now!

My system was purchased from Evesham in 2003, and has a KT4V motherboard which can hold up to 3Gb RAM, a Radeon 9700 Pro graphics card, with an AMD XP processor. In March last year I installed a new hard disk and installed Vista Home Premium. At this time, I had no issues.

Recently I upgraded the RAM to the maximum amount (3Gb). All RAM chips are from Crucial, each 1Gb. I have three slots with 1Gb in each. All modules are DDR333(cl2.5).

When the system runs on only 2Gb RAM, there are no issues and the 9700 graphics card works fine, however when running on 3Gb (i.e. all slots occupied), the system fails to boot properly into Windows. Stops on the Blue Screen of Death with

“STOP 0X00000116 “ and complains about atikmdag.sys”

When looking in Device Manager, under System Devices, there is a problem with the VIA CPU to AGP Controller. The device gives the following error message:

“This device cannot find enough free resources that it can use. (Code 12)
If you want to use this device, you will need to disable one of the other devices on this system.
Click 'Check for solutions' to send data about this device to Microsoft and to see if there is a solution available.”

At this time, the 9700 graphics card cannot be seen in Device Manager and is not being used.

When disabling the VIA CPU to AGP Controller, with 3Gb of RAM, the system boots normally and seems to work fine, but the Radeon Pro 9700 card is not showing up in Device Manager and is not being used (presumably because the VIA CPU to AGP Controller is disabled).

When the system is running on 2Gb of RAM, it boots normally and there are no problems in Device Manager (VIA CPU to AGP Controller works fine, Radeon 9700 card listed and working fine). Note, when I put one of my old 256MB modules in slot 3 (giving 2.25 Gb) the system works fine.

I have re-installed Vista, unplugged all other PCI devices, cleared CMOS, upgraded my BIOS to the latest, installed Version 5.14A of the Hyperion Pro drivers from VIA and installed the latest drivers from Ati for the Radeon 9700 PRO card. – but sadly no joy!

I have noticed that after installing the VIA CPU to AGP Controller driver (XP diver in 5.15A of Hyperion 4 in 1 drivers), it works fine (with the 3Gb in place). In Device Manager it is now shown as: VIA CPU to AGP 2.0/ AGP 3.0, however, the problem now is that the Radeon Pro 9700 card doesn’t work. I installed the latest driver from ATi (7.12 20/12/07), however in Device Manager this is showing a problem with the following message:

“Windows has stopped this device because it has reported problems. (Code 43)”.

Any help would be greatly appreciated with regard to what I should do to resolve this / what drivers I should install / order of installation etc….. anything!!!

I just can’t understand why all works fine with 2Gb but not with 3Gb!

Am I correct in saying, when a driver doesn’t exist for Vista, you still shouldn’t use the XP one?......but instead, accept the Microsoft provided driver which came with Vista)?

Thanks in advance,

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  • neil906 Jan 29, 2008


    Thank you both of you for your help. Currently running on 2.5Gb with no problems - i.e. Two 1Gb modules and a 512MB module. If things start goinging wrong again, I'll remove the 512MB to free up one slot.

    Thanks again, much apreciated,


  • Anonymous Dec 24, 2008

    Had the same problem.
    3 Gigs of Memory was the issue.

    I'm hetero, but Neil906, you are a sexy b**** right about now.

  • netsparc Feb 04, 2009

    I have the exact same setup (Msi kt4v-l, ATI 9700 pro, 3GB pc2700 RAM). Have you discovered anything else for this issue?

    Removing the memory made vista stable, but it is still slow.

    If you want to really see this system's full potential, I recommend installing Ubuntu 8.04LTS (ATI drivers don't work well in release 8.10). If you need to run windows programs, install VirtualBox or VMware (I prefer virtualbox, but not the ose edition)

    Make sure the proprietary ati drivers get installed for 3d support (search for "installing fglrx") There should be a message that pops up saying you can install the proprietary drivers for better hardware support.



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In my own experience, you should not install more than two odd memory, it should be even except you only have one memory and use in the primary slot. In my own; the mainboard cannot support maximum rating of the memory, sometime three memory will work but in the long it will encounter problems , blue screen, hang up, freeze and if severe problem can cause damage to the motherboard.

you should use only 2 1GIG memory and spare the 1 gig so that no problem encountered soon.

Posted on Jan 25, 2008

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Problem is you need to install Vista which support 4Gb! Look for specification on Vista you have!! Mostly XP and Vista support 2Gb!
The problem is in your OS. 32 OS support max 2Gb of ram they detect you 3gb but they couldn't operate with all!!

Posted on Jan 25, 2008


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Posted on Jan 02, 2017

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SOURCE: VIA CPU to AGP Problem with 3Gb and Vista

Chances are good that your third 1gig memory module is faulty. Windows blue screen of death at startup is a typical symptom of faulty RAM memory.
Try replacing the third 1gig DIMM with another of the same type.
Let me know if this works or not.

Posted on Apr 22, 2009

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