I'm dinking around with an old recycled 7010.because my old XP won't let me into my banking site. Too old I guess. 

The 7010 has 8GB in one bank (M378B5273 DH0-CK0. A friend offered a pair of M378B5273 CH0-CK0 and was wondering if they would work in the second bank. The DH0 cas is 11-11-B1 and the CH0 is 11-10-B1 and was wondering if timing would be messed up or if computer would adapt to this combo if the banks were kept separate. Some literature I saw gave CAS as 11-11-B1 to both chips but tag on chips say different. 

I THINK I figured it out. It seems they are the same memory chips but the DHO will run at DDR3 1866 max while the CHO runs at DDR3 1600 max. The EHO is a 1 rank. Hopefully good to go.