ACPI Compliance Failure? REALLY?

Update: Installation successful, at the cost of one RAM module (remove from system), as suggested in this thread.
However, boot still fails with 2 modules in place.

Original Post:
Hello, my version of Windows 7 has failed to install, both at boot and within windows XP. The in-OS install failed, generically stating that it couldn't read the files it was looking for. (It REALLY needs a details tab for IT experts. It could have been my raid drivers, which seem to be running afoul in other OS's...s) The boot install didn't even start stating that my BIOS was not fully compatible with APCI.
However it is a feature-laden Gigabyte model from this year! There are no BIOS updates in regards to ACPI.

MA790TX-UD4P motherboard....

In my next installation attempt I will mount the ISO with Emulation and install from there, at least until restart.

Full system specs in my profile...

Edit: I've taken a look at this thread, I should note that I have no onboard video and only have access to an Nvidia 9800 GT with this motherboard.
I will attempt the removal of the 2nd DIMM as suggested on page 2.

Welcome SI5K,


Sounds like you have been reading some posts first, good start. Must give you a for having your system specs in place. I have found in several of my installs of Win7 that the Bios settings were rather confusing as to how ACPI was enabled or not. So I just made several attemps until I got the right one recognized by Win7 install. that's just one thought. What Build # of win7 are you installing? How did you burn the DVD? 4x speed? seems to work best for most members. You did not state how much memory you have, but you say you took 1 stick out & attempted an install.

No Over-clocking of CPU, right ?

We can start here & other members will jump in with their thoughts, also. Sounds like all the right hardware, just some minor bugs to configure correctly.

" Doc "

Yes, 7100 is the Rc x64 bit that you have. I have never used a r/w DVD for an install, so not sure if that would cause a problem or not. I have read several cases of the 1333 memory not working at the rated speed. But here again I don't think the slower speed of 1066 is the problem. Yes, try a regular DVD at 4x speed burn. What program did you use to burn it ?

" Doc "

Installation is underway!
I began installation from the ISO being emulated (not standard procedure, but I had to try it and it was 10 x faster anway....) and that restarted, with win 7 giving the A5 stop again. I removed my second ram dimm, booted to the 7 drive, and am now Expanding Windows Files...

Interface looks nice... first thing I noticed is that it got the screen resolution right, soon after log-in, and its no longer tucked under the personalize menu as in vista (basic at least...)

Too bad this'll be far from my price range after March. Can I get a credit for each useful suggestion I submit ?

I might dig out the old list of XP interface hindrances I wrote up, aside from that, I'll report any bugs. First thing is that RAM issue. I'm re-placing the second module now. . .

What is the size of each ram stick ?

SI5K said:

2 gigabytes. I popped the other one back in and Windows 7 began to loop-restart. I tried start-up repair and it gave me STOP: 0x-0000000A5 again. I removed the first ram module and replaced it with the second (to rule out damage to that module) and Windows boots as normal.

The Ram's maker is actually Patriot, and Viper is a sub-mark that appears only on the packaging.

My Board has for DIMM slots, and the store personal placed the ram in the first 2 slots when they offered free assembly of my CPU/Mobo/Ram combo. Remembering the old dual channel Intel Chips I tried a 0, 2, configuration but the system holds at the BIOS mem test...
Maybe there are settings to look into. I might go ahead and investigate Gigabyte and APCI errors, if I have the time and inclination.

So are you saying it will boot normal with just 1 stick, No matter which 1, but not with both ?

SI5K said:

2 gigabytes. I popped the other one back in and Windows 7 began to loop-restart. I tried start-up repair and it gave me STOP: 0x-0000000A5 again. I removed the first ram module and replaced it with the second (to rule out damage to that module) and Windows boots as normal.

The Ram's maker is actually Patriot, and Viper is a sub-mark that appears only on the packaging.

My Board has for DIMM slots, and the store personal placed the ram in the first 2 slots when they offered free assembly of my CPU/Mobo/Ram combo. Remembering the old dual channel Intel Chips I tried a 0, 2, configuration but the system holds at the BIOS mem test...
Maybe there are settings to look into. I might go ahead and investigate Gigabyte and APCI errors, if I have the time and inclination.


First suggestion for Windows 7 : A utility to change your boot drive. You know, that classic (How do I change Drive C: to Drive D and Vice Versa, who's solution is A: Reformat B: Registry tweak, and then the en-masse changing of registry values which WIndows will change right back in some cases) It would be great if Windows 7 could do (or does it) that....
Or at least, ask users which drive letter they would like where on installation, and if neccessary, tell them to reboot and edit the boot order in the BIOS.

As seven is now, am I going to have to re-install to get the Windows partition letter from D to C? (I've stayed offline so I think my key is safe, is it possible to activate the RC key more than once, automatically or otherwise? On the other hand I could just ge a new one...)

I got a pic of your MB. Did you get a manual with it ? Which color slots are you using?

Are you trying to do a dual boot with XP ?

RC key is good for more than 1 time up until expiration of the RC time period.