Hey Vipin, quick off topic question, what prompted you to switch from Zorin OS to Mint? You mentioned that you thought it was easy to handle, are there big differences between them? I tried Redhat in the late 90's and again in the mid 2000's, but it never really clicked with me. I saw Zorin (I think it was version 6 a few years back and donated so I could get the full version. The big thing for me was that it has the traditional Win XP Classic (95?) interface available, which I know and to this day am still most comfortable using, and installed it on a backup machine to play with. Life got busy, and I never really used it much, tried running BOINC on it, seemed to work fine, but then it fell off the plate. Anything you can say about it, and Mint now as well? Thanks!

For low end cards, 1x, 4x or 8x might be ok

I've used a 1x before with a gtx 750, but when I tried with higher end card it wouldn't work.

I tired a 16x as well with high end card, but it too wouldn't work as well.

Don't know if it has something to do with requirements of the higher end cards.

You might get a different result. I ended up opting for a new MoBo

I just went for the higher end boards, I've got 4 so far, 3 have cases, the 4th doesn't yet, but it will, an X9 for 4 and 5, 1 each of course.

I won't go with any PCIe 1x riser with high end cards

What sort of GPU will you be using with the riser? Some cards will not work with certain risers, other will. So knowing what the GPU cards is first helps

Vipin,

Did you check eBay?

http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2053587.m570.l1313.TR0.TRC0.H0.Xfans+for+Asus+GTX+660.TRS0&_nkw=fans+for+Asus+GTX+660&_sacat=0

Quite a few 120x120x25 230vAC fans with <100m3/h
First one I came across - Sunon SP101AT-1122HSL.GN flow of ~136m3/h

As for you GPU fans - what diameter and depth can you get away with?

Unfortunately with all the power available via GPUs, cracking longer, full sentence passwords are a fairly trivial affair: http://arstechnica.com/security/2013/08/thereisnofatebutwhatwemake-turbo-charged-cracking-comes-to-long-passwords/, http://arstechnica.com/security/2013/03/how-i-became-a-password-cracker/, and http://arstechnica.com/security/2013/05/how-crackers-make-minced-meat-out-of-your-passwords/ show details on how just about anyone can do it these days.

Increasingly password vaulting software such as KeePass that will randomly generate difficult to crack passwords will also save them for you. The downside is that if you're using complete hard drive encryption and require a password at boot time (like my company does), having a software-based password vaulting software won't help much.