The new RTX cards consume more power than their predecessors, which could mean we see fewer short (ITX) length cards this generation in the enthusiast category. For this reason I thought it would be a good time to get this thread moving again.
The most obvious place to start would be to simply extend the LZ7 by 80mm to make it compatible with reference length Graphics Cards, this opens up space in front of the motherboard for the SFX power supply, which also opens up all the space above the motherboard for CPU cooling.
The result is a 9.99 litre shoebox style case with extreme air cooling potential. Existing LZ7 cases can be upgraded with a set of 4 new panels (Top, Bottom and sides).
Here is the first prototype:
The extra room in the motherboard area opens up the potential for some creative windowed builds, this prototype is a concept of how a windowed version could be done. I wanted to create a sort of "frosted ice" look which would go nice with some white custom cables and perhaps some blue ambient lighting.
Using clear material for the top and side panels really opens the build up and allows you to show off the full system, but all the cables from the power supply and front IO can look messy if you don't have custom length sleeved cables. To hide these cable the front half of the window panels are completely etched that fades out with a hex pattern.
The pattern and proportions need some tweaking but I am really pleased with the etching, it looks stunning in person and the frosted etch lights up very nicely from the Corsair RGB RAM.
I would also like to do a black version of this case concept using smoked window panels instead of clear, I'm not sure how etching onto smoked panels will turn out but it could be really interesting.
Unfortunately I don't currently have the right hardware to truly show off this concept in terms of high end CPU's, coolers and modern reference length GPU's. My current main desktop CPU is the Ryzen 2400G as I've been using it to test the HT5 APU case. I have a Noctua U9S tower cooler which would be perfect for this layout, but I don't have an AM4 bracket for it yet. Next up is the GPU, my daily card is the Gigabyte GTX 1070 ITX which I use in the LZ7, but the short length card defeats the point of this case. So instead I'm using this MSI R9 285, a bit outdated but with it's 250w TDP it should be a good test for the thermals.
As you can see the 360 degree GPU exhaust ventilation that worked so well for the LZ7 has been maintained in this design, when used in conjunction with a positive pressure setup this will really help to flush out exhaust heat keeping thermals under control to maintain high boost clocks and lower fan speeds during heavy gaming.
I pretty sure the biggest point of contention with this concept will be the power supply cable. As you may have seen the power supply is facing down mounted to a bracket that is offset from the bottom panel, the power cable exits under the case. It actually works better than it sounds.
Figuring out how to mount the power supply in front of the motherboard has been the most difficult problem to solve. Space is actually quite limited once you factor in the storage mount bracket against the front panel and the IO cables from the side panel. Even though this case layout is only a few litres smaller than the M1 its in this area of the case where the volume has been take from.
You might be thinking why not use an internal extension cable like some of the other SFF indy cases, there are a couple of reasons but the first is I can't actually find a CE approved chassis mount cable with a 90 degree connector (poor excuse I know). If anyone can help point me to one please do!
But even if I can find a supplier for these cables it will be difficult to mount the PSU on its side without constructing a complex 90 degree angle bracket, which is not practical when this is just supposed to be an extension panel for an existing case, also the space is very limited to construct such a bracket. If I was designing a case from scratch the bracket could be designed into the chassis properly, but this is an extension of the LZ7 which makes things a bit more complicated.
Here is a better look at the PSU mount bracket, it is made from a series of layers which are secured to the base panel using long screws (not shown in the photo as I actually glued them together for the purpose of this prototype).
The base panel will be supplied with a right angle power extension cable that you would plug your normal mains power cable into, there are many "off the shelf" CE approved cables that only cost a few £. So for me this solution has many advantages.
Anyways, I apologise for the long post. If you have any comments please let me know!