Peripherals forum

General discussion

USB Ports "Dead":

by In-Correct / May 10, 2008 3:40 PM PDT

All Four USBs of the back of my computer are not working. I had to plug in devices in the front of my computer. It's a Compaq Presario I got in 2004. And I also have an equally loaded ViewSonic monitor with iPod dock. It has 4 USBs. I know I have 11 USBs combined.....But I still would like to know why 4 of them are out.... I tried restarting, and it didn't work...Could it be a tiny particles of dust thing?? Do I need a can of computer spray??

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Check around
by Willy / May 10, 2008 4:39 PM PDT
In reply to: USB Ports "Dead":

If you had a sudden drop-out you may have been zapped via the power demands. With all those devices, it may have taken its toll. Afterall, this is a simple electrical path with limited amperage going to it. I thought dust is the cause of the problem but a cleaning wouldn't hurt plus inspect the area for obvious damage(delamated solder run)or open. Also, possible ESD/static damage can be at fault. You can regain the ports if you add a USB card to replace those if applicable.

tada -----Willy Happy

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by In-Correct / May 11, 2008 6:30 AM PDT
In reply to: Check around

Thanks. nothing much has been plugged into the ports for a while...except for a mouse, So I doubt its a power drain. I will probably add a USB card to the computer... and check for dust and other types of damage.

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USB Ports
by pedgieconrad / June 20, 2008 10:00 PM PDT
In reply to: Ok:

Have you checked the device management. When you view properties for the USB port hub on the power management tab make sure that the allow my computer to turn off this device to save power is not checked.

If it is remove check mark and reboot your pc. This should fix the problem.

I also have a presario that did this same thing.

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