Re: Computer turns on and then just dies

On Fri, 11/22/2024 1:47 PM, s|b wrote:
> On Fri, 22 Nov 2024 11:42:23 +0800, Mr. Man-wai Chang wrote:
> 
>> Wow... that's an old AMD motherboard, and it's socket FM1.
>>
>> I got an older Asus M3N78 PRO (socket AM2) still kicking though... quite 
>> surprising. :)
> 
> I've got an even older PC that I used to play around with Linux Mint,
> Tails, Kali Linux, Puppy Linux, ...
>  
>>> Power supply: Antec model EA-380D GREEN 380W
>  
>> I had used the same power supply. It did fail after not being powered on 
>>   for months.
> 
> The power supply that I have available is even older, but I know it
> works. Question is if I can use. Connectors seem the same.
> 

 October 2, 2010 7:00 PM EST

https://www.anandtech.com/show/3902/antec-earthwatts-ea-380d-green-380w/7

   "There's still enough power on top to run a Core i7 or Phenom X6 processor
    and a discrete GPU, but you'll want to stick with graphics cards that only
    require a single PCIe power connection to err on the side of caution."

That means in their estimation, a 125W video card (50W slot, 75W on 2x3)

    5V  3.3V  12V1  12V2  -12V  +5VSB    [ PCIe  1 x 6-pin ]

   20A  20A   17A   15A   0.5A   2.5A
   \       /  \        /
     115W      28A common
   combined     source

12V2 is CPU
12V1 is peripherals, PCIe slots

The two wiring looms should have their own overcurrent detection.
And apparently draw from a common source (the 28A number).

*******

"ASUS F1A75"  we don't know what processor.

A guess would be, it can't be over about 100W or 12V @ 10A to allow some
efficiency room. The 380D should be fine with the 15A it offers.

https://www.asus.com/me-en/supportonly/f1a75-v%20pro/helpdesk_cpu/

   AMD A8-3870K (AD3870WNZ43GX, rev.B0, 3.0GHz, QC, L2:4M, HD6550D, 100W)

10A from 28A combined spec, leaves 18A for peripherals, and the peripheral
rail has a 17A limit. 10A for the biggest video card it supports by
using the PCIe 2x3 connector leaves 12V @ 7A margin.

Best guess, when the supply was healthy and new, yes, it would be
sufficient for that board. Barring any surprises like
"I'm running a Bitcoin farm off it too" :-)

   Paul