Adding ram -> boot hangs on classpnp.sys
p6n sli-fi mobo
core 2 duo 6420
Nvidia 8800gts 320mb (evga)
old, working ram: Patriot Extreme Performance 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model PDC22G6400LLK
new ram : OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model OCZ2P10664GK
Assorted hdds (not in raid or anything)
What it does: with (and only with) new ram installed (either one or both sticks), does not boot into windows.
F8 reveals that it hangs after loading drivers\classpnp.sys.
What ive done: switched around the ram, new and old, in pretty much every concievable configuration.
Also ran memtest included on the windows cd AND memtest86+, and no errors show up.
Searched for solutions online too.
Note timings do not match for sets of ram, but i set to slower settings(those of new ram).
Also note that ubuntu (and grub) boot and work fine with any combination of ram.
Solutions to the Problem Adding ram -> boot hangs on classpnp.sys
Are you using 32 or 64 Bit Version of Ubuntu?
Are you using 32 or 64 Bit Version of Windows 7?
Also, I recently helped my mom upgrade her Win 7 Home Premium 64 Bit machine from 2 Gigs of RAM to 4 Gig of RAM only to find out that Win 7 64 Bit ran ridiculously slow on my mom's Intel DG965RY Motherboard.
I was at a loss to figure out why my mom's computer
was slower and flashed her BIOS as a last ditch effort.
After I flashed her BIOS, the problem amazingly went away!!!
Note: Be careful if you decide to flash your BIOS.
An unexpected interruption of power during the process may require you to send your motherboard back to the manufacturer.
If you dare to flash your BIOS, you might want to borrow a Uninterrupted Power
Supply (UPS) from a friend before you initiate the procedure.
Absolutely no warranty express or implied comes with this post.
The poster will not be held liable for any physical, mental, emotional or financial loss that results from the use of suggestions or information contained in this post.
that follow the advise in this post do so at their own risk.
Because of this Adding ram -> boot hangs on classpnp.sys error, Windows can fail in starting some processes and the system's performance can significantly slow down. In some cases, Windows has problems starting up and the system can freeze.
Lastly, this error Adding ram -> boot hangs on classpnp.sys can even result in the Blue screen of death error message, just like other critical Windows errors. If any of the above problems and symptoms occur in your PC, then you should immediately seek to resolve this problem.
In order to resolve Adding ram -> boot hangs on classpnp.sys error or repair the corrupted and damaged Windows files, you will need a Adding ram -> boot hangs on classpnp.sys error repair tool. There is more than one method of treating this kind of error code, and here is how you can manually do it:
- Start the computer and log in as administrator
- Go to the start button and select All Programs. Go to Accessories, System Tools, and then System Restore
- Click on System Restore and in a new window, select the 'Restore my computer to an earlier time's option and click Next
- On the new confirmation window that appears, click Next
- Restart your computer after the restoration has been completed
Recommended Method to Fix the Problem: Adding ram -> boot hangs on classpnp.sys:
How to Fix Adding ram -> boot hangs on classpnp.sys with SmartPCFixer?
1. Click the button to download Error Fixer . Install it on your system. Run it, and it will scan your computer. The errors will be shown in the scan result.
2. After the scan is finished, you can see the errors and problems which need to be fixed.
3. When the Fixing part is done, your computer has been speeded up and the errors have been fixed
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