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ASUS Support Home Location : Forum > Motherboard > M2A-VM HDMI  
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  Topic : [Problem]Solution phenom 9850 upgrade New Topic
Mostrom
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From: Sweden
Posted:6/11/2008 8:19:00 PM # 1
Hiya! I own this mobo and I recently upgraded from an Athlon64 X2 4200, to a new Phenom 9850 (2.500 mhz).

However, I use "VISTA Home Premium 64 bit (swedish OEM)" and when I tried to start the system I would immediatly get a BLUESCREEN, this happend with both the latest 1801 beta bios, as well as the older 1705 beta bios. And I thought this was "beta-bios" related.

I barely had time to read the screen before the pc crashed, so it took me quite a while to see that the problem had to do with "AMDLLD64.sys". Once I looked it up I googled this page:
http://forum.msi.com.tw/index.php?topic=116968.msg880704#msg880704

When I tried booting in "safe-mode" it worked fine, I went to "device-manager" and removed the AMD low level driver and now the pc has been working fine for 3 days.

Just thought I should let you guys know, if someone else gets the same problem...

Bye!

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grobi
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From: Germany
Posted:6/12/2008 7:12:00 AM # 2



thumbs up


thanks
grobi

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Mostrom
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From: Sweden
Posted:6/12/2008 9:01:00 AM # 3
U R Welcome!

Oh yeah, I forgot to mention that later on I installed "Vista service pack 1" and after that I decided to install : "AMD Power Monitor Version 1.2.3", from this page :
http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_15259,00.html

After doing this I discovered that the "AMD low level driver", that I had removed had been re-installed together with this program.

Strangely enough, when re-installed with the "AMD power monitor" it no longer causes the computer to bluescreen & crash.

Weird, but I suppose this driver might be useful for something, so might as well keep it this time.

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Nitemare
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From: Spain
Posted:9/9/2008 7:44:00 PM # 4
Hello, AMD CPU 9850 is not listed in "Supported CPU" for this motherboard... does it really work? What about an AMD 9950... this is a 140W CPU... does anybody know whether this CPU may work? Latest BIOS, 2001, doesn't seem to have support for higher than 95W CPUs... or am I wrong?

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kyo
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From: United States
Posted:9/10/2008 12:33:00 AM # 5
Here's a list I found of ASUS motherboards that support 140W CPUs:

http://event.asus.com/mb/140w/

As you can see the M2A-VM isn't on that list so it probably can't support any 140 watt CPUs. Even if the BIOS was designed to support a particular 140W CPU the CPU voltage regulator on the motherboard might not be able to handle it. Under heavy CPU load the components might get damaged.

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Nitemare
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From: Spain
Posted:9/12/2008 12:25:00 AM # 6
Thankyou very much.
Maybe a 125w CPU is supported but I agree I can have problems with voltage regulator and a 140w CPU.

Quote:
Author: kyo Posted: 9/10/2008 12:33:00 AM

Here's a list I found of ASUS motherboards that support 140W CPUs:

http://event.asus.com/mb/140w/

As you can see the M2A-VM isn't on that list so it probably can't support any 140 watt CPUs. Even if the BIOS was designed to support a particular 140W CPU the CPU voltage regulator on the motherboard might not be able to handle it. Under heavy CPU load the components might get damaged.



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JJK
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Tech Points : 1
From: Finland
Posted:9/19/2008 1:59:00 AM # 7
Phenom 9850BE used to be on the list, but they have removed it as well as all the other 125w cpu´s.

Phenom 9850BE does work (trust me, I am using it on this pc), but I don´t think this motherboard has got good phase power design nor high quality capacitors.

Even when Phenom 9850BE is overclocked (and then it really needs power) it does work, but it will only mean shorter lifespan to this motherboard.

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kyo
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From: United States
Posted:9/24/2008 9:58:00 AM # 8
With the version 2101 BIOS they added a 140W CPU [Phenom X4 995Z (HD995ZXAJ4BGH),2.6GHz,140W,rev.B3,SocketAM2+,Quad-Core]. They still don't show any 125W CPUs though.

CPU Support

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