Ubuntu 12.04 64 running mega slow

[bobble off]

HI can anybody please, please help me??

Up in till recently I was running Ubuntu 9.10 exclusively on a old machine with a 800mhz cpu and 250mb ram and it served me very well in fact it ran much faster than my wife much newer windows laptop.

and here is my problem.. i recently started a photography business and built a new much more powerful pc:

AMD Bulldozer FX6100 cpu
8gig ram
ATI Radeon HD6670 graphics card

I did a 1st time install of the newly released Ubuntu 12.04 64bit and after the 1st boot i was greeted with error upon error then after much config editing to get the wifi working i just found it ran much slower than my old pc so was forced to install Windows 7 for work, well windows runs like a demon super fast and my cpu load rarely goes over 10% even when editing large photos.

i deleted ubuntu and reinstalled it inside windows and now it runs with less errors and the wifi works out of the box but its still painfully slow and just hangs all the time when just web browsing never mind trying to render 1080P video files

How can i fix it i want to run ubuntu and not windows. would 32bit be more stable??

thanks in advance and for reading the whole post

[MSPdwalt]

did you run a media check? Maybe your install media was corrupt? I've heard that can cause all sorts of fun and interesting problems.

[bobble off]

to be honest i cant remember if i checked it but the 2nd install was via wubi which i have just discovered is quite useless.

as i don't have any thing saved I've deleted and am going to try installing 12.10 if i can find a blank DVD some where and see if that's any better

[MSPdwalt]

Yeah, Wubi is Ubuntu with training wheels. Download the iso via anything but internet explorer. I've found that IE likes to corrupt large file downloads sometimes (hence the resurgence of download managers?). I download my .isos via torrent. When you boot to the CD run the media check before starting install, if it passes go for it, if not, you've found problem #1.

[MSPdwalt]

Also, you want to stick with 64-bit. 32-bit can only recognize 4 gig of RAM. Linux has had = support for 64-bit for some time now, windows in the last ~2 years has caught up now as well. If your hardware is 64-bit capable I always recommend running 64-bit.

[bobble off]

I deleted the installation of 12.04 and tried to install a copy of 12.10 via usb following the instructions on the Ubuntu site and i now cant even install at all im getting is the purple loading screen then the screen just goes off all my fans go into overdrive and nothing. the power button wont even work and then when i reboot i get a message saying my motherboard over clock settings have been changed and failed to start.

so is my new machine just not Ubuntu compatible?? i checked every component was except the motherboard witch for reference is a ASUS M5A 78l-mlx v2