Log [WIP] Tiny and Mighty - Velka 7 Watercooled 240mm 4090 13900k

[ragnorinki]

EDIT: Its been a couple weeks, I've made some progress on the plans, now I can actually start making modifications and getting the less substantial parts and to that end...

to-do:

• Cut hole in bottom panel of case for PSU supply cable and air intake
• Machine legs for case
• Model and Modify GPU block for side or front ports (or moved further to one edge of the block)
• Model and Machine custom top plate for monoblock that routs to side or down ports, or even extends far enough past the mobo to do rear-facing ports
• Determine how far recessed the IO shield would have to be if it can be used at all
• Patch up or otherwise utilize the unnecessary ports in case (like original mobo io shield space)
• buy customized power cables
• buy pump and other wc paraphernalia
• Mount (and maybe sand) rad and fans.

Hiya! First post, been building pcs for a decade but haven't done much sff or hard tubing(prob not doing hard tubing for this) wc, both of which I've been keen to dabble into. Getting ready to gift a friend my current daily driver eATX super tower behemoth, and I'd like to move to something much more portable and form-fit. This is my first deep dive into case customization, a test of my community resources' robustness (I newly have access to a beautiful and extensive makerspace I plan on utilizing), and a personal fun challenge . Right now still figuring out all the specifics, but I've seen it done with all the right-sized components (in soft tubing) and I'd like to contribute to the advancement of the medium.

Absolutely open to component and process advice, here's the tentative list


Case:

Velkase Velka 7 (Ordered)(Acquired)
https://www.velkase.com/products/ve...ary&utm_source=order-status&utm_content=image


Motherboard:

Asus ROG Strix z790-I (Acquired)
https://rog.asus.com/motherboards/rog-strix/rog-strix-z790-i-gaming-wifi-model/
Salient info: I/O shield is ~47mm, overhang from PCB is ~4mm on back, overhang from IHS is ~2mm on front, so thickest interior section of the MB in case is ~41mm.


GPU:

Bought it, went with the x3 oc (Acquired)
Not sure which water block I'm using but as I couldn't care less about RGB this one seems promising
https://www.aquatuning.us/water-coo...x-4090-reference-design-with-backplate?c=6470
For which I'll buy whichever of these is in stock/cheapest when I settle on it
INNO3D GeForce RTX 4090 X3 OC, 24GB GDDR6X, HDMI, 3x DP (N40903-246XX-18332989)
- INNO3D GeForce RTX 4090 iCHILL X3, 24GB GDDR6X, HDMI, 3x DP (C40903-246XX-1833VA47)
- INNO3D GeForce RTX 4090 iCHILL Frostbite, 24GB GDDR6X, HDMI, 3x DP (C4090-246XX-1833FB)
- INNO3D GeForce RTX 4090 iCHILL Black, 24GB GDDR6X, HDMI, 3x DP (C4090-246XX-18330005)



CPU:

Intel i9-13900k (Acquired)
https://www.intel.com/content/www/u...-36m-cache-up-to-5-80-ghz/specifications.html


CPU Waterblock:

EK-Quantum Momentum² ROG Strix Z790-I D-RGB - Plexi (waiting to order pending confirmation of acceptable dimensions.)(ordered)
https://www.ekwb.com/shop/ek-quantum-momentum2-rog-strix-z790-i-d-rgb-plexi

EK-Quantum Velocity² Direct Die - 1700 Upgrade Kit (ordered)

Ram:

Gskill Ripjaws S5 DDR5-6400 64GB (2x32GB) (Ordered - moved to their low profile collection since they released some better spec ones in jan)
https://www.gskill.com/product/165/377/1677726067/F5-6400J3239G32GX2-RS5K
Had a monster of a time finding the 64gb kit, so much so that when I reached out to their sales, I got A Newegg Link for it yesterday, the day the newegg listing was first available

Gskill Trident DDR5 7600 32gb (16x2) (Waiting on the specs of 48gb kits before biting the bullet)
https://www.gskill.com/product/165/374/1665644764/F5-7600J3646G16GX2-TZ5RK


PSU:

Cooler Master vSFX Platinum 1100 (Ordered)(Acquired)
https://www.coolermaster.com/catalog/power-supplies/v-series/v-sfx-platinum-1100/


Custom Cabling: ??

I've never ordered custom cabling before so I would absolutely love some reccs on this, meanwhile I'll be doing my own review reading on it and will update here post haste (clearly haven't been hasty )


Pump:

EK-XTOP DDC 4.2 PWM Elite - Acetal (incl. pump) (not ordered yet, gotta figure out how much space for a pump-res Ive got)
https://www.ekwb.com/shop/ek-xtop-ddc-3-2-pwm-elite-acetal-incl-pump


Fans:

Noctua NF-A12x15 PWM Premium Quiet Slim Fan x2 (Acquired)
https://noctua.at/en/nf-a12x15-pwm


Would be nice to have:

CPU/GPU Usage Screen(Inquired about the DIY model, haven't heard back)(heard back, still haven't bought)
https://glowcube.io/index.php

A res! (doubt i can fit a worthwhile one, id kill to consider the modultra active cooled one)

More fans? maybe an itty bitty one.

 

[rfarmer]

Good luck, what are you planning on for radiators?

 

[ragnorinki]

Good luck, what are you planning on for radiators?

Have to measure it out, but if I can fit it a EK-Quantum Surface S240, if 30mm is too thick, probably the alphacool NexXxoS ST25 Full Copper 240mm or the ST20 HPE of that

 

[m3lezZ]

For cables:

Professional Tailor Made Custom Sleeved Modular Cable Kit for Cooler Master

Buy Professional Tailor Made Custom Sleeved Modular Cable Kit for Cooler Master for $79.99 with Free Shipping Worldwide (In Stock)

www.moddiy.com

I also ordered for my corsair customs cables 3x 8Pin to 600W for my 4090W as silicon and super flexible, can just recommend this. Makes cable-mgmt much easier even for the 600W connector.

 

[ragnorinki]

Already a couple of edits, monoblock is almost certainly out, pending some investigation into the difficulty of modifying it to have top/bottom/side ports.
Monoblock is moving forward, and wouldn't have needed any modifications if i didn't have to shift the mobo, but alas.

The case will need some modifications (I've got access to some serious tools, ie laser cutter, etc so this will be an opportunity to toy around with them ) firstly, the addition of some lengthier feet which I may machine from the metal leftover when I cut out a hole for this beaut in the bottom(still haven't decided if I'm only cutting out the port or if I want to expose all the mesh for optimal airflow). the fan air holes line up "perfectly" with the solid part of the bottom of the case , so I'll be cutting them a window (or just more perforations, depending on if I can laser cut the piece (which I should be able to)) for airflow too.


need some more info on the alphacool GPU block, specifically how far the ports are from the side of the card to make sure it can fit, since the lions share of the card will fit with the PSU right up against the bottom but not the ports. If the ports don't clear the psu, I might have to go with something else like the considerably thicker https://www.aquatuning.us/water-coo...px-n-rtx-4090-reference-with-backplate?c=6470

 

[CubanLegend]

I'd love to see pictures of this, how come i dont see any?

This is quite a promising idea/build. I'll be following your progress, and I too was tinkering with the idea of fitting a 4090 into a Velkase 7!

 

[ragnorinki]

I'd love to see pictures of this, how come i dont see any?

This is quite a promising idea/build. I'll be following your progress, and I too was tinkering with the idea of fitting a 4090 into a Velkase 7!

I do not yet have most of the components to take pictures of and my rudimentary attempts at virtually modeling the ordeal have not been very fruitful. Should be getting the case today, after which Ill be measuring some clearances and hopefully ordering the next batch of verifiably compatible parts.

 

[m3lezZ]

Looking forward to updates on your project :-)

 

[ragnorinki]

So I'm in somewhat of a pickle, not necessarily seeking advice, just musing but I figured I'd provide updates on the delay.

Velka 7 is 303mm high, 177mm wide, and 111mm thick, with 43mm of graphics card clearance by the default position of the mobo bracket.

As the Alphacool 4090 ES is ~25mm thick fully assembled (since virtually none of the media about the waterblock discuss the combined cooler/backplate I measured from OptimumTech's video), and the XSPC TX240 is 20.5mm thick, we've already exceeded the 43mm allowed without even considering fans

Because of this, we'll have to shift the mobo bracket back, lessening the mobo, cooler, and memory clearance (which is a problem we'll deal with when we get to it). I've gotten to it, my ram is 33mm top to bottom, so that means that moving the mobo back can only go a maximum of 52-33=19mm. Going from that we can now calculate 43+19-25-20.5-15(noctua fans)= 1.5mm yay!!! concerning as that is, it is addressable with some jury-rigging of the GPU, rad, and possibly ram sticks (since the hinge of the heatsink is part of the 33mm and (not sure since I'm not too familiar with ram heatsinks) could be ground off with minimal loss of heatsink function.

Shifting the graphics card toward the motherboard will then impinge on the space the PSU takes up, and the PSU configuration I've chosen is especially and solely to accommodate this. Normally the graphics card wouldn't have to consider the PSU, but as the PSU is 63.5mm thick, there is 111-43 = 68mm of space between the rear of the graphics card area and the mobo side of the care, and we're shifting the GPU back more than the 4.5mm left over from 68-63.5, the GPU will have to be over the PSU. So now, we're stuck working with height.

@FiftyFifty 's skillful build utilized a configuration of the PSU with the wall cable coming out of the bottom of the PSU, with the unit on small risers to accommodate for the cord. Unfortunately, with my waterblock being 209mm long and the PSU being 100mm high, the 303 doesn't seem to allow for this, but as it turns out the waterblock (according to the backplate length and photo measuring below) is only 199mm, and the ports account for the additional centimeter. What that means is that we have to have the psu right against the bottom of the case (hence the cutout ill have to make on the bottom and the legs I'll have to machine) shift the PSU/GPU to opposite sides of the case width-wise to ensure there's clearance for the water ports next to the PSU, and the 199+100=299mm will just squeeze into the 303

as the PSU is 125mm wide in this config, 177-125=52mm of clearance for the ports. Alas, the 74mm shortest length from one side of the block to the opposite side of both ports does not allow for this, and here we are customizing the waterblock, which is an unexpected addition that I'm thrilled to have an excuse to tackle.

Measurements for the Waterblock:

 

[m3lezZ]

Thank you very much for your detailed insight :-)

 

[markcosta]

Was you able to finish this build ?

 

[ragnorinki]

Still at it! Will make updates here soon

 

[CubanLegend]

Still at it! Will make updates here soon

hope this build is still in the works!?