Itx case suggestions with the parts i have? maybe wrong section to post it...

I might suggest the Corsair Obsidian 250D:
http://www.newegg.com/Product/Product.aspx?Item=N82E16811139033

Noise is caused by fans running at high rpm.
See if you can't locate the noise source.
You probably can't slow down the graphics card without losing performance.

A simple tower type air cooler with a slow turning 140mm fan would do the cpu cooling job and be quieter.

The 901 is horrendous for heat. There's a reason it looks so unique - it's probably not a good way to design a case

The 250D would be a decent option if you had a H100i but it's useless for air cooling and isn't particularly suited to a H80i either. The reason it's so wide is to allow you to fit a slim radiator with fans alongside the motherboard, but this means no push/pull combos (like the H80i) so you can't use the dedicated radiator space and instead have to stick it at the front intake. To me this is a poor solution.

I don't know which PSU you have (specific model) but most 850W PSUs are oversized, often in the ~180mm long range and this could be your biggest issue. The majority of ITX cases which don't take SFX PSUs are limited to around 160mm depth and it's highly likely your PSU exceeds this. The ITX two cases which spring to mind which allow for larger PSUs are....you guessed it - the InWin 901 and the Corsair 250D.

To me, the "obvious" two cases for your build as it stands would be the Node 304 and Bitfenix Prodigy. They are very different in design and size but they ultimately have similar advantages - both have good graphics card venting, and both will take a H80i but both have excellent air cooler support should you decide to change the cooler for something quieter. Both of these cases are limited to approx 160mm PSU though.

As I see it, you have two options. The 250D is the only case which is likely to fit everything you currently have, though I can't guarantee 100% it will. As the picture I linked above shows, the H80i uses up a lot of the "extra" PSU space and if your PSU is particularly long there might be interference - though I think this is unlikely. The V850 for example is 170mm long and I think that'd be fine. The issue here is that if everything is still noisy your upgrade options are very limited. The H100i (or similar) is basically your only option, and it's hardly known for being quiet.
Alternatively, you can change the PSU. Finding a high capacity, smaller unit isn't easy but they do exist (can't think of any off the top of my head). The Node 304 is a pretty hard limit of 160mm as it sits across the case.
The Prodigy however, might work. The 160mm "limit" isn't a hard limit as there's 180mm of space inside the PSU cage. You need space for cables of course, but people have squeezed even larger PSUs in here by using extenders or by modding the cage itself. Neither of these solutions are great but there are options at least.

If you can't change the PSU then the Node 304 is totally out. If the PSU is longer than 160mm it starts to interfere with the graphics card.

The Hadron Air is a great little case and can work fine in terms of cooling but there's several reasons why it won't really work for you. Most significantly, it won't fit a GTX690 (at least officially speaking) as the card is too long. Secondly, the PSU is only 500W which won't support a GTX690 either - and can't be replaced/upgraded easily.

The 250D is basically the only case which will fit everything you currently have, though you might be ok with a 170mm PSU in a Bitfenix Prodigy (there's lots of people who've come up with ways to squeeze them in).
The H100i is a very good cooler but it's notoriously noisy with stock fans. You can replace these fans with lower RPM versions or play with fan profiles to try to get a quieter operation, but it's always going to be inferior to air cooling here.

The reason I didn't mention the Core V1 is because I don't think it's suitable. It will take long PSUs and you can swap the top and side panels to provide good graphics card venting.

I'd have some concerns about the graphics card power cabling as they'll be through the chassis and into the shroud section at the front. It should fit (it's kinda within the specs) but practically it's awkward which is perhaps why they list the "maximum length as 260mm in the main blurb but 285mm in the details.

The main issue I have with it is a bit like the 250D - by using a H80i you remove a lot of your basic airflow. 80mm fans are awkward because it's not a conventional size - most of the big fan manufacturers do not make 80mm fans.
Additionally, it's a bit of a cooling dead end. If the H80i is deemed to be part of the problem in terms of noise levels then you'd ideally want to upgrade but in the Core V1 your options are pretty limited as it doesn't support the majority of tower coolers. Good value cheap case, but not a great choice for a high end build imo.

@ Dani. CPU @ 60C isn't too bad. If your CPU cooler is making a lot of noise at that temp it's either working too hard to get there (possible) or it's set up too aggressively. The GTX690 doesn't have the greatest cooling, so 80C as a worst case scenario isn't entirely surprising - but it's definitely higher than it should be.
Any case with a vented side panel in which the graphics card sits flush against it should make a significant difference (like the Prodigy, 250D, Node 304 and the Core V1) to temps which in turn should hopefully take the noise to a more acceptable level.

The reason I didn't mention the Core V1 is because I don't think it's suitable. It will take long PSUs and you can swap the top and side panels to provide good graphics card venting.

I'd have some concerns about the graphics card power cabling as they'll be through the chassis and into the shroud section at the front. It should fit (it's kinda within the specs) but practically it's awkward which is perhaps why they list the "maximum length as 260mm in the main blurb but 285mm in the details.

The main issue I have with it is a bit like the 250D - by using a H80i you remove a lot of your basic airflow. 80mm fans are awkward because it's not a conventional size - most of the big fan manufacturers do not make 80mm fans.
Additionally, it's a bit of a cooling dead end. If the H80i is deemed to be part of the problem in terms of noise levels then you'd ideally want to upgrade but in the Core V1 your options are pretty limited as it doesn't support the majority of tower coolers. Good value cheap case, but not a great choice for a high end build imo.

@ Dani. CPU @ 60C isn't too bad. If your CPU cooler is making a lot of noise at that temp it's either working too hard to get there (possible) or it's set up too aggressively. The GTX690 doesn't have the greatest cooling, so 80C as a worst case scenario isn't entirely surprising - but it's definitely higher than it should be.
Any case with a vented side panel in which the graphics card sits flush against it should make a significant difference (like the Prodigy, 250D, Node 304 and the Core V1) to temps which in turn should hopefully take the noise to a more acceptable level.

The reason I didn't mention the Core V1 is because I don't think it's suitable. It will take long PSUs and you can swap the top and side panels to provide good graphics card venting.

I'd have some concerns about the graphics card power cabling as they'll be through the chassis and into the shroud section at the front. It should fit (it's kinda within the specs) but practically it's awkward which is perhaps why they list the "maximum length as 260mm in the main blurb but 285mm in the details.

The main issue I have with it is a bit like the 250D - by using a H80i you remove a lot of your basic airflow. 80mm fans are awkward because it's not a conventional size - most of the big fan manufacturers do not make 80mm fans.
Additionally, it's a bit of a cooling dead end. If the H80i is deemed to be part of the problem in terms of noise levels then you'd ideally want to upgrade but in the Core V1 your options are pretty limited as it doesn't support the majority of tower coolers. Good value cheap case, but not a great choice for a high end build imo.

@ Dani. CPU @ 60C isn't too bad. If your CPU cooler is making a lot of noise at that temp it's either working too hard to get there (possible) or it's set up too aggressively. The GTX690 doesn't have the greatest cooling, so 80C as a worst case scenario isn't entirely surprising - but it's definitely higher than it should be.
Any case with a vented side panel in which the graphics card sits flush against it should make a significant difference (like the Prodigy, 250D, Node 304 and the Core V1) to temps which in turn should hopefully take the noise to a more acceptable level.