Question about ASUS A8V Motherboard

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Asus A8V Error Message

Upgraded to 4 GB Memory, now receiving error message "USB Device Over Current Status Detected!!" using the latest bios ver. 0229 running Vista Ultimate 64 Bit. Had to flash bios to previous ver. 0219 for PC to boot but getting another error message "System does not recognize processor, hit F1 to continue. This issue is far from new I've read horror stories on hundreds of Forums concerning same issue. Is there a real "Fix" is does Asus just not care?

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  • dui_lash Nov 27, 2008

    Answers to both questions;



    2 sets of TwinX matched Corsair DDR CMX1024 PC3200 Non Ecc

    (4 sticks 1024 ea.) Timing @ 3 3 3 8 on all 4



    Cooler Master Real Power Pro 750-watt power supply

  • dui_lash Nov 27, 2008

    And yes if I revert back to my original 2 gigs all is fine, also I tried the new 2 gigs and all works perfect. So the ram is good its a bios issue.

  • dui_lash Nov 27, 2008

    Answers to both questions;

    2 sets of TwinX matched Corsair DDR CMX1024 PC3200 Non Ecc
    (4 sticks 1024 ea.) Timing @ 3 3 3 8 on all 4

    Cooler Master Real Power Pro 750-watt power supply

    Comment posted on Nov 27, 2008
    And yes if I revert back to my original

  • dui_lash Nov 28, 2008



    I have tried all the bios versions looking for the "Advanced>Memory Configuration setting "DRAM Over 4GB Remapping" it doesn’t show up in the settings. Pg. 4-16 in the Manual shows it to be below "Memclock Mode" but it is not showing up. I have tried ALL the bios versions and don't see it.

    I have to enable "MCT Timing Mode" for the advanced memory settings to expand.



    By the way Wayneard I really appreciate your efforts in trying to help me resolve this issue. If you can find a fix there will be allot of people in the community that will be praising you :) as this is been an ongoing issue for quite some time and Asus doesn’t seem to care.



    Thanks Again In Advance





  • dui_lash Nov 28, 2008

    Changed Ram voltage from 2.7V to 2.8V dosen't help bios ver. 0219

    Going to flash bios back to the most recent ver. 0229 reset voltage to 2.8V and give it a try.

  • dui_lash Nov 28, 2008

    System will not Boot into Windows @ RAM voltage 2.8V in either bios ver.

    Had to reset to 2.7V (back to square one)

  • dui_lash Nov 28, 2008

    Master ECC is set to DISABLED



    DDR voltage set to AUTO



    Will boot and run on 3 sticks but I lose the dual channel mode therefore actualy obtaining a decrease in performance opposed to 2 in dual channel mode.



    I noticed at boot the bios is actually reading 3456 gb RAM which makes since due to the Southbridge resource allocation. Unfortunately windows vista ultimate 64 is only seeing 2048 gb RAM. I go to run/DXDIAG shows windows RAM being used.

    If i right click on my computer and look at the windows experience index it shows 4.00 GB RAM

    I ran a system test at PCPitStop and it also detects a Memory read error, tells me exactly what I'm seeing, I have 4 GB RAM but system is only using 2048. There possible cause is old outdated bios. Yes I'm using a old outdated bios but at least it will allow me to boot up. All the newer versions give me the same error messsage when trying to use 4 GB RAM "USB DEVICE OVER CURRENT STATUS DETECTED!!" System will shutdown in 15 seconds.

    I don't have anything hooked up via USB reverted my mouse and keyboard back to PS2 connections.

    I think the DRAM Over 4GB Remapping setting would possibly help but none of the bios versions actually have it in them.

  • dui_lash Nov 28, 2008

    Thanks for the Links Wayneard but I read them weeks ago........

    This is Definitely an Asus mb Bios issue that they are aware of and refuse to correct.

    Thank you very much for all your time and effort with this problem.

  • Wayne Mineard
    Wayne Mineard May 11, 2010
  • Wayne Mineard
    Wayne Mineard May 11, 2010

    I did some searching and found a thread on ASUS site dealing with this problem. May or may not be any help. You seem to be pretty much on the ball. You may have sen it. Anyway, near the bottom of page 1 and most of page 2 there were several things guys did to correct it. It was a different MB, but it looks like ASUS is quite popular with this error.



    Here's the link:

    USB Device Over Current

  • Wayne Mineard
    Wayne Mineard May 11, 2010

    Verify Master ECC Enable is set to DISABLED.



    I would leave the DDR Voltage set to AUTO.

  • Wayne Mineard
    Wayne Mineard May 11, 2010

    Sorry, I don't think you can install 3 sticks because of Dual Channel mode.

  • Wayne Mineard
    Wayne Mineard May 11, 2010

    Another question...Have you tried 3 GB? The 2 originals in the blue slots and one of the new ones in the black slot in between.

  • Wayne Mineard
    Wayne Mineard May 11, 2010

    Great! Thanks for answering. I didn't think it was a power problem, and with a 750W pwr supply, I know it isn't.



    Next, go into the BIOS to Advanced>Memory Configuration>DRAM Over 4GB Remapping and make sure it is ENABLED. Save and Exit.



    There is also a note in the manual that the entire 4GB may not show up due to "the Southbridge resource allocation".

  • Wayne Mineard
    Wayne Mineard May 11, 2010

    Have you tried to revert to the previous RAM configuration?



    Are the new RAM modules nonbuffered DDR PC3200 or PC2700?

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  • 21 Answers

How many whats is your power supply? Sounds like not enough voltage.

Posted on Nov 27, 2008

  • cbri Nov 28, 2008

    Can you up your ram voltage in your bios settings? Maybe they require more power than your old ones..

  • cbri Nov 28, 2008

    Can you up the voltage to your RAM in the bios setup? Maybe they need more power for some reason.

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