problem w/install on new system: IOMMU
I just finished building a new system and want to put Ubuntu on it but I'm having problems with the install. The relevant info on the system (I think this is all that's needed):
AMD Phenom X4 9550 Quad Core Processor
XFX nForce 750a SLI Motherboard
Lite-ON IHAS422-08 DVD Burner
WD Cavair Green 500GB 16MB/SATA-3G
4GB of memory
I've downloaded the .iso onto a cd and when I start to install the system/cd/install hangs at the screen:
Aperture beyond 4GB. Ignoring.
Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 64MB of RAM
Loading, please wait...
I've check a lot of blogs online regarding this issue and it seems I'm not the only one having problems with this. I've tried a number of recommend solutions but none have worked so far.
What I've tried:
-taking a memory stick out so I only have 2GB memory installed
-installing with the i386 version
-installing with an "alternate" AMD version
-BIOS
sata/raid/ahci modes
setting the pci latency timer at 32, 64,....., 248
changed reserve memory size from disabled to 16k, 32k, and 64k
enable my memory hole remapping (enable/disable)
changed my DCT Unganged mode from auto to always
I see nothing in my BIOS regarding anything to do with IOMMU or AGP. Some have suggested updating my drivers which I tried but I'm required to load a proper boot device or insert a boot media cd to continue. Others have suggest using "iommu=memaper=3" or a number of others similar fixes....some have had success while other haven't. My problem with these is I don't know where to enter w/o an OS. I'm new to Linux so not very familiar with kernels and such but I really do not want to install vista on this system. Any help or advice would be greatly appreciated and thank you in advance.
Question information
- Language:
- English Edit question
- Status:
- Solved
- For:
- Ubuntu linux Edit question
- Assignee:
- No assignee Edit question
- Solved by:
- Justin
- Solved:
- Last query:
- Last reply: