My PC is having problems booting when more than 2 USB's are connected, it comes on try's to do Memory Testing on pre boot but it get stuck then it starts over gets to memory testing again then keeps repeating that cycle, if i unplug any 1 of the usb's it then boots fine and goes to windows, but with all the usb's plugged in it won't get past memory testing.
The bios is the latest, has anyone seen this before?
Is it a motherboard problem?
Or is the power not getting to the usbs correctly?
any help is appreciated.
Gigabyte P45-UD3R -bios f9
4gb G skill ram
1TB Western Digital
Antec 450w PSU
Windows 7 RC 7100
USB's connected are
Linsys Wireless adapter
Seagate Freeagent 250gb external
It's not very surprising. Ipods especially are known to cause problems.
I would try a separate powered hub and see if that resolves things. You do have some USB settings in BIOS, and you could try experimenting with them a bit. You may also have a USB hard drive detection setting in there that is applicable.
I have tried a separate powered hub and it now finishes memory testing but then locks up again and keeps cycling again.
I've tried a 2nd hub and it locks up earlier on the words 'memory t'
As soon as i unplug any usb (doesn't matter which one) it flies through and boots windows as normal.
Is there not enough power to power the usb's?
Just tried an usb pci card from another computer and it doesn't have any problems, it boots fine, so it must be a problem with the onboard usb. I don't understand why all the onboard usb's work fine when windows is booted though.
Is there anything i can try to fix it or should i contact gigabyte for a replacement?
Possibly. I can't say for sure, but we do not recommend those. Antec makes many fine PSUs but the Basiq line is not one of those.
A bad or poor PSU can cause many problems that look just like other things... the only way to know is swap it out.