[Windows7] 0xC000009A on resuming from hibernation

Hello everyone!

I have Windows 7 Ultimate x64, 4GB RAM. I can hibernate but I can't always resume from hibernation. The more memory is allocated before hibernation the bigger chance of resume fail.
I found some information but it provides no help, at least in this case.
I tried chkdsk on the drive, defragmentation, powercfg -h on/off, memtest... I found Windows hotfix(KB977178) which I guess should solve the problem but I have it already.
I might have done something more but don't remember now. I have no idea what to do. I'd be grateful for some ideas that can solve this problem.

The error message:

 

Thanks for the answer.

Yes that is exactly the message I got. Black screen, after choosing OS from bootloader.

Yes, the commands were run as administrator. Disable powercfg -h first, then schedule chkdsk, shutdown, actual chkdsk(with automatic reboot after) and enable powercfg -h. There could be a shutdown between disabling and scheduling, I don't remember. Earlier I did this without chkdsk, I might have did this few times while looking for more info.

Nice suggestion but I guess it won't work since it is a box, nothing portable.

Drivers are at most 2 months old so driver updates are unlikely to help. I don't use driver scanner apps or the kind, I prefer manufacturer website. The motherboard is not so new either so there are no updates that fast.
Furthermore, the problem was present on older motherboard I used. I had x86 OS and 2GB RAM, put in another 2GB but I saw only 3.25 so I changed to x64 but I still didn't see 4GB. I figured that motherboard 4GB limit was responsible so I changed motherboard and CPU. All the other hardware remained, since I picked a motherboard so I don't have to change more. This let me allocate more memory and made the issue far more of a problem.

How or what 3rd party application could caused this?
Given the same programs loaded. How can OS hibernate(and resume) with 50 or 60% of memory allocated but hibernate and not resume with 70% or more?
I tested the load with testlimit64. That way I don't have to fill ram with anything useful for tests.
I changed the hiberfil size too(powercfg command) but it doesn't seem to change the percentage "limit". Still, I didn't do that too many times so I can't be sure.
I'm actually using testlimit64 as a crazy workaround(push allocated ram to page) but I don't think it is a healthy idea.