Thanks for the Reply.

I started getting that error after I had installed Microsoft Flight Simulator 10(FSX). I was running RamCache v2.7.18 I believe. So, I downloaded the latest version v2.01.02 and installed that hoping it would fix the error. After installing, it asked to reboot. When I rebooted, my pc got a blue screen upon booting up, saying Incompatable bood device. I made sure it was booting on the correct drive in the bios. And also pressed F8 on booting to get the boot disk selection menu. I was selecting my C: drive with Windows 10, but got the same error every time. It would not boot. I finally had to restore from a restore point that was made after I had installed FSX. That let me boot. Then I restore from a backup I had made a few days ago. Then the Incorrect Function RamCache Error went away. Now my system was working good again before the error.

So, I installed FSX again and got it working. And all was fine for a day and a half. Then, again last night, I got the Incorrect Function error with RamCache! Arggg! I am afraid to install the new version again since that caused my pc to not boot up. But... I had made a good backup again, after I had fixed it yesterday and had installed FSX. So, I didn't have so much to loose. This time, I did not uninstall RamCache first. I just installed over the current version. I just rebooted and did not get the error. So, I am running the new version. I hope that actually fixed the problem!! But since I had restored my pc yesterday, and didn't get the error all day, I have some doubts as to the cause, or if this new version is the fix.

If I start getting the error again, I will submit a support ticket. But I will just uninstall this thing as well..

Question:
RamCache caches frequently used files. From what I understand, it does not matter where the file is located, just that you used it and it is cached in memory for next time. So, why does RamCache what you to select a 'Master Drive'?

How do you decide which drive to select and why?

Please download RAMCache latest version V3.01.00 from ASUS support website and install it on your system to check if this issue remains.

Hi Snacko,

Sorry for the late reply, I'm checking with our software team and now waiting for their response. I should be able to answer this for you by today or tomorrow.

Thanks,
Bahz

Any answers on this yet?

Sorry guys, the last email I got back from our motherboard team is that they'll discuss this with their EE team and I haven't heard back since. I followed up again just now and for sure I'll keep following up until I get an answer from them.