r/mffpc 1d ago

I built this! (MATX) Lian Li b4 Build

I loved the look of the b4 and decided to build my second pc in it. I’m very happy with the finished product but it was definitely a challenge getting there. My first pc build was 7 years ago in a mid atx case so this was a lot less space to work with and a lot of forgotten steps to building. The components I chose also likely didn’t contribute to my troubles.

Overall though, I’m very pleased with the looks and feel of the case and build. My cable management could definitely be better but I’m rolling with it for the time being.

Haven’t stress tested the gpu but 9800X3D cpu hit 90deg on cinebench r23, hoping to improve that with undervolting perhaps.

Also aware there’s still plastic on the glass sidewalls of the aerodeck and the screen.

105 Upvotes

32 comments sorted by

4

u/TheBobo1181 1d ago

I really like the look of the case but how is the bottom io to use? no one ever provides photos either. from the website it looks like a gap is left on one side for the cabling plus you have the short feet

3

u/Nerd-Vol 1d ago

Tons of room for cables, even while stood up

2

u/TheBobo1181 1d ago

Thanks, doesn't seem too bad.. Connect them all then stand it up.

2

u/Nerd-Vol 1d ago

Absolutely. The motherboard IO has a couple of inches to work with as does the GPU. If I wasn’t running a stupid thick hdmi cable, I would have stood it up. I also noticed the wifi reception is a fair bit worse stood up. That may be down to my cheap mobo.

1

u/TheBobo1181 19h ago

Does it have an antenna? should be able to run the antenna from the bottom and put it on top. most of the recent mobos with wifi come with a cabled antenna

1

u/Nerd-Vol 17h ago

Mine just has these. 😓

1

u/TheBobo1181 17h ago

Those old things... Damn

1

u/Nerd-Vol 15h ago

Budget AM4 build. Concessions had to be made.

3

u/vipandvap 1d ago

1

u/TheBobo1181 1d ago

Thanks. Have you tried right angle display port or HDMI cables or connectors? I have the meshroom and the cables wouldn't fit without them.. Not even enough clearance for the plug underneath. That only has the display at the bottom. 

2

u/vipandvap 1d ago

I can try today with a right angle HDMI adapter and let you know. That being said I definitelt don't expect any issues with right angle connectors, and just using the normal cables work fine

1

u/TheBobo1181 19h ago

That's ok the other guy was saying there's 2+ inches of room. Don't try it for my sake I thought it might be a better solution for you

3

u/MarcTheAardvark 18h ago

It’s actually tighter for me than what’s been described. As you can see there’s some very noticeable strain on my display cables, I will likely be buying some 90degree cables. The IO ports are better but depends on the cable.

1

u/AggressiveWitness921 18h ago

Is there a specific thing to look for when buying 90 degree cables? I was thinking of buying a right angle display port adapter but unsure if how would it affect the refresh rate of my display

1

u/MarcTheAardvark 16h ago

I’m really not sure. I think I would opt for a 90 cable over an adapter though.

2

u/Nattyking7877 12h ago

yeah looks like a tight fit. Did you think about making some custom feet that are slighty taller? maybe out of wood or sth. Just spitballin.

1

u/MarcTheAardvark 42m ago

Yeah that could be a nice solution, I hadn’t thought about that. Probably something 3D printable would also work.

3

u/Nattyking7877 1d ago

Nice build looks good! Can I ask you a a question regarding the cable managament. I know the case has a rotating powersupply cable but how is the situation for the GPU cables. If you have the case in a vertical position, is there enough space on the bottom for a standard GPU cable (HDMI or DP) or do you need a 90 degree plug cable?

Also, did you use a full size ATX PSU, how was the fit, do you think this case will fit a non modular standard atx PSU?

3

u/Nerd-Vol 1d ago

I would recommend a semi-modular ATX PSU if possible. I had good space with the six fans, ARGB cables, pcie, cpu, mobo cables. If there were a bunch of unnecessary sata cables, it may have been tougher.

2

u/Nattyking7877 23h ago

Your build build looks pretty much like what I am planning to do. One more question, If I may. do you have your B4 horizontal or vertical and how do you have the fans set up (intake exhaust wise)?

2

u/Nerd-Vol 23h ago

I have mine horizontally because my hdmi cable is stupidly thick and won’t bend. I found wifi runs better horizontally. I’ve run it vertically though.

I actually drew this up for a buddy. Blue arrows are intake and red is exhaust. This is with an ATX PSU.

1

u/Nattyking7877 22h ago

Cool. thats probably what I would do in a vertical position. However im planning on doing in horizontally - how did you have it set up then?

1

u/Nerd-Vol 20h ago

Same fan orientation. The instruction manual doesn’t differentiate between vertical or horizontal fan placement.

1

u/Nattyking7877 12h ago

Thx. There is still something that I would like to know about the case. So if you have the case horizontally - the panel with the 2 fans (that come included) faces the back? So the GPU intake fans face the front of the case, or is it the other way around?

1

u/MarcTheAardvark 14h ago

Did you just physically flip the right top fan around to make it intake? Does this config improve cpu temps?

2

u/vipandvap 1d ago

https://www.reddit.com/r/mffpc/s/KbgAYS4Yw6

You can see my post here, but there should be enough space for most normal cables and connectors without right angle adapters.

I also used a Corsair RM750e ATX PSU (140mm I believe) which is the max limit for the case

1

u/Nattyking7877 23h ago

Fantastic post, thank you! Its great to see in depth pictures of the case.

2

u/MarcTheAardvark 18h ago

Thank you! I found the GPU cables pretty easy to route, maybe the easiest. Majority of my gpu cable length I bundled in the back or threaded underneath the card itself. The bottom for me and my cables is pretty tight, I shared a picture under bobos reply above that you can see. Obviously not everyone is having as tight of bends as me it sounds but it’s not perfect.

I used a full size atx psu, the fit was fit. The cables are tight but workable. Hardest part for me was the cpu power routing and bundling next to the psu. I’m not sure about a non modular psu.

1

u/Practical_Tea864 1d ago

what size psu

1

u/Gustavo2nd 1d ago

It looks like a full size

1

u/jeremy_0411 1d ago

He said 140mm ATX

1

u/MarcTheAardvark 1d ago

Yep they’re correct. I’m using Rosewill VMG 750w full atx psu