Question about ASUS P5QC Motherboard - Intel P45, Socket 775, ATX, DDR3/DDR2, Audio, PCI Express 2.0, Gigabit LAN,

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Asus P5QC mobo won't recognize personal storage through USB

Just installed this new mobo last week. Have mouse and keyboard etc etc hooked up in the USB's in back and they work fine. But i tried to plug in a flash drive to both my front USB's then the backs and neither will read. The port is getting power because my drive lights up, but windows gives me an error saying it's unreadable. Have tried with 4 different flash drives including one out of the box. Also tried hooking up my ext HD and won't read it.

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I have this problem too but i know if you disable usb2 in bios it will solve the problem but speed is too slow and i cant solve this problem (speed)
my email:majidasadi2001@gmail.com

Posted on Feb 04, 2009

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What system are you running ?

Posted on Jan 19, 2009

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1 Answer

Problem with ASUS P5QC Motherboard, cannot detect any usb device (hard discs). The lights on the devices show that there is power, but Windows 7 cannot 'see' them. Keyboard, mouse and usb stic


If same usb port work with other devices then suggest to check the disk management first then device manager. If it is not listed in disk management or you are not able to access it then open device manger and check under disk drives. If it is not listed in device manger then I suggest to test the external harddisk on another PC. If that also fails then you either have a bad hard disk.

Ref: http://pcsupport.about.com/od/windows7/ht/disk-management-windows-7.htm

Ref: http://pcsupport.about.com/od/windows7/f/open-device-manager-windows-7.htm

Dec 23, 2012 | ASUS P5QC Motherboard - Intel P45, Socket...

1 Answer

Why cant i get my 4x 2gb ddr2 800 to work on my asus p5qc mobo? it will run fine with just 4gb 2x ddr2 800 but when i add the other 2x ram i get black screen at boot


Be sure to check which slots you are putting them in, stay within the same colors as to which needs to be put in.

This may be why, looks like your using DDR2
DDR2 1066MHz DIMMs work only on the black slots for one DIMM per channel. Ensure to install the DDR2 1066MHz DIMMs ONLY on the BLACK slots!

This may be the case for all speeds of DDR2
http://www.asus.com/Motherboards/Intel_Socket_775/P5QC/

Jul 16, 2011 | ASUS P5QC Motherboard - Intel P45, Socket...

1 Answer

I have a lexar 2gb jd firefly usb drive and i dont know hoe to install the driver for it. Please help me!


You don't need to install any drivers for it, windows should detect new hardware and install the drivers that it already has for it. If your system isn't detecting new hardware when your plugging it in, then you might have an issue with your USB ports on your motherboard. If thats the case then go ahead and try hooking up like a USB keyboard or USB mouse. If it recognizes those then you know your ports are fine.

If your ports are fine and your USB firefly drive isn't being recognized, then your USB firefly drive is bad.

Jun 30, 2010 | Motherboards

1 Answer

No usb keyboard and usb mouse


You need to ensure that the chipset drivers are loaded.

Mar 10, 2010 | ASUS Motherboards

1 Answer

MSI RS482M4 Mobo not recognizes USB port on XP SP2-3 boot.


Try to find application that load the CPU at 100% by seeing TASKMANAGER.

To start TASKMANAGER press CTRL+ALT+DEL on the keyboard, select PROCESSES TAB, click on CPU to order by CPU load and find process that come near to 100%.

Oct 18, 2009 | Motherboards

2 Answers

I can't install vista any mouse or keyboard detected


Often times this happens when using a USB keyboard / Mouse.

Or when using a USB keyboard through a PS/2 Converter.

Try using a PS/2 Keyboard if available
(Small Round connector with a small amount of pins, similar to a S-Video connector.)

Also. Access your BIOS settings and assure that you have Legacy USB keyboard support.
Depending on your computer the BIOS / Setup Menu / Options Menu/ Etc. can be accessed by pressing the following key during boot:
F1
F2
ESC
DEL
F12


Let us know your setup(KB and Mouse Port type), and if you have any other issues.

Good luck

Apr 14, 2009 | ASUS P5V800-MX Motherboard

1 Answer

Unpluging 4 pin power on mobo Pc starts but no video,keyboard etc


how do i fix the monter I tryed to put the power and rest on and motherboared comes on not the monter

Mar 13, 2009 | ASUS P4SGX-MX Motherboard

1 Answer

Qvc said my ram isnt on the list


From the Asus website - "DDR2 1066MHz DIMMs work only on the black slots for one DIMM perchannel. Ensure to install the DDR2 1066MHz DIMMs ONLY on the BLACKslots!"

Your motherboard only has two black slots. You can install larger capacity sticks of RAM in those slots, but you can only use two. Most likely you are getting the incorrect reading because you have four installed.


Jan 26, 2009 | ASUS P5QC Motherboard - Intel P45, Socket...

1 Answer

Asus M2N keyboard problem


You don't need a driver for a PS/2 keyboard nor a USB keyboard. The keyboard lights should lite up at post. After boot press the Caps Lock key and it will light the corresponding light on the keyboard if the controller works. If not it is the motherboard. If you are strapped for bucks get a mobo that can use the same cpu, RAM and drives. Good luck, Steve Medley

Nov 06, 2008 | Motherboards

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