Hello, > Probably not for a 35W CPU, but generally: Using adapters for the > EPS12V connector is dangerous. They have more than two pins for a > simple reason: The electrical current through each pin/connection must > not get too high. There are adapters that route the whole current > through a single pin on the other end (e.g. a single old-school PATA > drive connector). Never use these unless you know they can take the > current you expect! (e.g. not much more than 3A for a 35W TDP, that > might be ok for a single pin, but you should read each connectors > specs)
Agreed. I have seen a cheap power supply whose ATX12V wires got warm because of this. I oblviously rebuilt the power supply, including replacing said wire. > Same applies to the tiny connectors for (hard)-drives on the PicoPSU, > if the current goes through less pins on the PicoPSU side, don't do it > (unless you know what you are doing). I have some SATA DVD units that can use up to 2.5 A on the 12V line, and another PATA unit (with a Molex connector) which uses the same. Using two +12V wires from two different connectors should be enough to power the CPU. > There are PicoPSUs that have a 4-pin EPS12V connector btw. So I'm not > sure what the original question was; would it work w/o full 8 pins? or > would it work w/o any? The former likely yes, the latter likely no. I think so. In fact, I have a 95W CPU on a 8-pin motherboard powered by a 4-pin power cable, and the computer runs fine. And none of my boards run without the 12V CPU power cable (I forget about it too often). I found the w.r.t. power supplies and connectors: - https://www.hardwaresecrets.com/everything-you-need-to-know-about-power-supplies/ (page 3 is probably the most relevant) - http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=207 PicoPSU roundup (from 2010, somewhat old, but still interesting) Best regards, Angel Pons Pons -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
