Replacing Mean Well LRS-350-12 with Dell D750E-S6 server PSU for a compact build – Need advice
Hi everyone,
I'm currently running an ASRock BC-250 (mining/industrial motherboard) powered by a Mean Well LRS-350-12. The PSU is currently running near its limit, which makes it quite noisy under load.
I want to switch to a more compact, high-efficiency setup and I've found a Dell D750E-S6 server PSU (750W) for just 22 EUR. This is an incredible price compared to any Flex ATX unit I can find in my area.
I have a few questions for those who have done this:
Noise level: Since I'll be running this at ~350W (roughly 50% load), will it be significantly quieter than my current Mean Well? I know server PSUs can be "jet engines," but is it better at partial load?
Form factor: I've seen many 3D printable cases/brackets designed for HP Common Slot PSUs (like the HSTNS-PL28). Are the physical dimensions compatible with the Dell "Common Slot" units?
Breakout boards: I know HP and Dell have different pinouts. Can I use a generic "Common Slot" breakout board, or do I absolutely need one specifically labeled for Dell D750E?
DIY wiring: I'm considering soldering high-gauge wires directly to the power tabs instead of using a breakout board to save space in a custom "console" chassis. Is this a common practice, or should I stick to a dedicated breakout board for safety?
Tuning and Power headroom: I’m planning to push my BC-250 further by unlocking/tuning it to aim for 40 CUs (up from the stock 28 CUs). I know this will significantly increase power draw. Is a 750W server unit a solid choice for these kinds of "overclocked" industrial boards?
Any other suggestions? I'm building a custom, low-profile console chassis. Beyond the PSU choice, do you have any other tips for managing thermals or power distribution in a compact build using industrial hardware like the BC-250?
Any tips or warnings for using this specific Dell unit in a console-style build would be greatly appreciated