VOGONS


First post, by Jackhead

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Im a little bit worried about some readings using a new PSU for older hardware.
I read i shoud go min 25A on 5V rail.
ATm i using a Bequite! System Power 9 on my 486 what has 24A on 3.3V and 15A on 5V rail combined 103W.
I run this PSU over a year now without problems. And my 486 is filled up with hardware (ISA/VLB). So i wonder what is on that point going 5v with 25A+?
Or is that combined 3.3V/5V with 103W ok? Anyone really have damaged parts from to low Ampere on 5V ?

Win98SE: Asus XG DLS - 1x P3 Xeon SL4XY 900/100/2- SG Voodoo 5 6000 PCI - 1GB RAM ECC- Diamond Monster Sound MX300 - Roland MPU-401AT (Yucatan FX)

Reply 1 of 2, by rasz_pl

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no you wont damage anything with less capacity psu, worst case it will be shutting down on peak load

https://github.com/raszpl/sigrok-disk FM/MFM/RLL decoder
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module (AT&T Globalyst)
https://github.com/raszpl/386RC-16 ram board
https://github.com/raszpl/440BX Reference Design adapted to Kicad

Reply 2 of 2, by danieljm

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25A on 5V is usually the minimum recommended specifically for an Athlon system. If your 486 is running stable, you don't have anything to worry about.