Well, since SanDisk is not going to reply, I tried with the default 5V setting the DeLock adapter I mentioned earlier with very old, 0.5G CF card SanDisk SDCFH. It does support PIO 4, but no DMA and the speed is very slow:
Tested on ASRock 775Dual-VSTA (P4, 3.8GHz WinXP, alligned). Also works (or more precisely, get detected) on the target Asus TXP4-X, so so far, so good. Except the speed, lol.
Now the question is - what voltage to use for the SanDisk Extreme PRO 32G CF card and how to change the removable bit to fixed, so there will be the caching in Windows possible.
I found two ways, ATM, that attempted to flip the removable / fixed bit on my SanDisk CF cards. I have own a oldie SanDisk 5V and 0.5GBy big CF card (SDCFH-512) too. The second tested card was the SanDIsk Extreme PRO 32G (SDCFXPS-032G) CF card.
1 - there is a program called BootIt v1.07, that offer the flipping between the removable and fixed devices:
USB Powered Gadgets and more.. Â» Flip Your Bit USB Utility To Make Local Drive
It does promise that it will work (despite showing my 32G CF card as 18G) and it even claim to work:
…but the device stays as removable. Both my CF cards cannot be changed. It should work good on USB drives... but it does not work on both mentioned CF cards.
2 - there is program called atcfwchg.com:
How to Set a CF Card to Fixed Mode | eHow
Again it claim to flip the removable bit to fixed on CF card, connected thru PATA to CF card adapter into a PATA interface. The usage is shell and it is simple:
atcfwchg /P /F
That should set the CF card, that reside on the primary IDE channel to fixed mode. In reality it output this error:
D:>ATCFWCHG /P /F
NAND Athens ID Drive Config Word (Fixed/Removable) Change Utility Version 1.4.
Fail (error #20)
So changing the "most important bit" on any CF card is not possible for these SanDisk cards, witch make them virtually useless for any PC usage, as for example, two partitions are not possible on removable device under Windows, while it is not a problem on fixed device…
There are also "solutions", like a diskmod-0.0.2.2, witch is basically a driver that trick Windows into treating all devices as fixed. Yet that is not going to help me to be able to install Windows on the CD card, therefore I cannot attest on it's functionality of quirks or bad things that happen, when you use it. I saw video of this driver working well on Win 8.1, but since the change is not permament ON THE DEVICE and it is just a Win patch, then it does not interest me one bit.
So far, I'm clueless. Hopefully the information I gather will help someone... On SanDisk forum this message I posted disappeared very quickly (under 20 min)... so, beware, users. SanDisk does not sell CF cards, but compatible CF cards with the exception that the most important change you are forbidden to do it and they will even activelly seek and eradicate all informations regarding the topic...