Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Boot failures and USB problems

28 Oct 2013   #1

Windows 7 Ultimate x64
Boot failures and USB problems

I've been having these weird anomalies with my computer lately. The symptoms are numerous and I have no idea what might be causing them, so I'll just list them here:

1. Computer occasionally freezes on boot. Sometimes it gets stuck on the POST screen. Sometimes it displays the POST and then just goes black and won't boot. The only way to fix it is to switch off the PSU for a few seconds and then try booting it again. Happens about once every two weeks.

2. Display occasionally delayed when waking up from sleep. Sometimes when I wake the computer from sleep it takes 1-2 minutes before I get signal on my screen. This happens about once a moth.

3. USB keyboard turning off. This started happening a week ago. I turned on the computer and suddenly the keyboard was non-functional. The keyboard's lights were on but even the backlight switch didn't work. This problem has been occurring multiple times a day, and sometimes the keyboard turns off during normal usage. I have to switch its USB port to get it working again.

I don't have any spare parts so I don't know how to start troubleshooting the problem. The only thing I've upgraded lately was my PSU, but I had some of these problems before upgrading. I've tried updating the BIOS and replacing the BIOS battery to no avail. My only guess is that the MoBo is failing on me.

Anyone have any ideas?

My System SpecsSystem Spec
28 Oct 2013   #2
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot

Two possibilities come to mind:

1. Your motherboard is failing.

2. Your power supply doesn't have enough Wattage to support your system. I don't know what the power requirements of your graphics card are, (impressive card, btw), but maybe the load from it and the number of drives that you have might be more than the PSU can take (along with all of the other parts of your computer). You may also have a dud PSU.

A quick test might be to substitute your graphics card with a low end one temporarily. Do you have a friend that might have a cheap older card you could borrow? If you can borrow one, try it for a day or two and see if the situation improves.

Just a thought, but it would help rule out the PSU.
My System SpecsSystem Spec

 Boot failures and USB problems

Thread Tools

Similar help and support threads
Thread Forum
The system has experienced boot failures...
I turned my PC on today and was greeted with this error: I have never overclocked my computer so I know that the issue is not caused by that, one thing that I noticed is that after running a Windows Index assessment, the Windows Index for 'Memory operations per...
Performance & Maintenance
Persistent hangups & failures to boot win7, priority changes
HPE-400f Pavilion has been crashing to black screen with cursor with problems booting windows 7. Was getting BIOHD4 error code, then BIOHD3 -- Warning: No Active Partition. Installed 2 spare hard drives to alleviate crowding but problem continues. In troubleshooting have noticed the boot-up...
General Discussion
Repeated boot failures
About two weeks ago I started having boot problems. I cannot relate it to any particular event like a new program or update. My system information is listed below using Piriform Speccy - this is a home built system and has functioned fine for about 18 months. I have had it set up to schedule shut...
General Discussion
Multiple Windows7 loading failures - now image restore problems
Hello all, first post! 6 weeks ago I bought a new Intel based PC from After 2 weeks the system failed to load, multiple attempts at loading gave varying outcomes, occasionally getting into safe mode but never Windows proper and all VERY SLOW - 30 mins say to get to safe mode....
Backup and Restore
Random BSOD and boot failures on new computer
Hi I have been having random crashes after setting up a new computer. At first the computer crashed when an external hdd was connected to the pc, but now it happens at random. When the computer restarts I get this error: chainloader/Bootmgr - error 15: file not found and my hdd is missing in...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 12:36.
Twitter Facebook Google+