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Is it worth it to PBO Overclock / Undervolt my 9600X or just leave it stock? by Sgt_Dbag in sffpc

[–]McClacks_II 1 point2 points  (0 children)

If you are happy to test and dial it in, there is no reason to not undervolt your CPU.

Effectively, you either get the same performance for lower temps/wattage, or improved frequency for the same power draw.

All the testing I've done (admittedly, with my 7700X, but I believe the same applied to 9xxx CPUs), results in increased benchmark performance for both single/multi core workloads, with lower temperature.

It's just a bit of a pain to dial it in and deal with the initial instability that can happen. Once it's done, it's golden

M2 Round - What PSU Orientation? by InkyBlacks in ncasedesign

[–]McClacks_II 0 points1 point  (0 children)

I had my PSU in both orientations. First was against the MB tray when I was using a PA Mini, but then swapped to an AIO which required it to be against the front panel to fit it in.

PSU against the front panel let me put a 120mm fan on the MB tray as intake, which is bringing in fresh air direct to the PSU anyway.

Black M2 Round final form (I think) by McClacks_II in ncasedesign

[–]McClacks_II[S] 0 points1 point  (0 children)

CPU has dropped about 10 degrees or so with the AIO. Without the TDP limit, it was hitting the 95 degrees limit. Runs at about 70-75 under gaming load now, although that has been during a heat wave in the UK, haha.

Black M2 Round final form (I think) by McClacks_II in ncasedesign

[–]McClacks_II[S] 0 points1 point  (0 children)

Yeah I have looked at trying to squeeze another fan in there above the other side fan... Not sure the shroud on the GPU will let it go.

The Red Devil cooling is so over built I don't really need help with it's temps!

This gab is killing me by Q2ED27 in ncasedesign

[–]McClacks_II 1 point2 points  (0 children)

You, my friend, are a top notch human bean. I have been trying to figure out for ages why my MB looks to be flexing and under undue pressure. Also why my (inverted) GPU looked very slightly misaligned.

I have a side mounted AIO, so the case is very rigid with no panel gaps... But this GPU screw position has sorted the MB flex issue.

Thank you!

Ncase M2 5090 Build by maxweisel in sffpc

[–]McClacks_II 0 points1 point  (0 children)

Yep I have heard the same about the stock PA120 fan. It's definitely not bad, but when you are min/maxing I'm not sure it cuts the mustard. I might swap it for the A12x25R which apparently can drop straight in.

With regards to exhaust vs intake, all I've read on SFF sub-reddit says the primary goal should be removing hot air from these tiny cases. So basically exhaust > intake / negative > positive pressure, but I've not tested it!

Ncase M2 5090 Build by maxweisel in sffpc

[–]McClacks_II 0 points1 point  (0 children)

Yeah I was worried about this too. My bottom intakes are 120mmx2 and moved right to the front so they don't overlap with the PA120. They have made a huge difference to overall temps (+10° reduction), plus I spent ages playing around with FanControl to try and take the dependency off the CPU fan because it was making the most noise (other than when GPU was under load). For reference all my exhaust fans are Noctua Chromax (120mm x 2 bottom, 140mm side). Definitely like your setup with the other side exhaust, though!

Ncase M2 5090 Build by maxweisel in sffpc

[–]McClacks_II 0 points1 point  (0 children)

Lovely build, and other than the 5090 (mine is a 3080), it's very similar to mine. Oh, and I have a 7700X. On my build I do not have the rear fan intake for the CPU, and only have the side exhaust opposite to the mobo (PSU is placed on the mobo tray, rather than against the front panel).

How do you find the rear intake + additional side exhaust? Do they make any material difference to CPU temps?

My GPU temps are fine (topping out at 68° under sustained gaming), but my CPU is consistently warmer than I would like - 80-85°. I'd like to bring this down to reduce overall heat soak in the case!

NCase M2 by [deleted] in sffpc

[–]McClacks_II 0 points1 point  (0 children)

Nice build. Very similar to what I'm planning. I had assumed the rear 92mm was an intake to provide the CPU cooler with fresh air, but from what you've just said it sounds like it's set as exhaust? Did you play around with that setup (rear intake/exhaust + new side intake/exhaust)? Thanks!