History of MembersPage/NanassyPeter/PC
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2013-01-24 08:27:41 . . . . catv-80-98-222-153.catv.broadband.hu [minor update of links. PC motherboard automatic switchon is dangerous]
2006-02-06 02:58:17 . . . . MembersPage/NanassyPeter
2005-07-26 15:37:12 . . . . MembersPage/JimW
2005-07-26 04:17:22 . . . . MembersPage/PeterNanassy


Changes by last author:

Changed:
OK, i need a step by step write off of uploading datas to the VEMS.Which files,etc.
PC related links
Changed:
Thanks,peter
* VemsTune

* http://vems.hu/vt/help/index.html

* Old:

** Read the updated manual under the DocsPage or MembersPage/JohanEriksson/VerThreeFirmForDummies.

Changed:
Read the updated manual under the DocsPage or MembersPage/JohanEriksson/VerThreeFirmForDummies. Both explain these processes in great detail.
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PC power supply and motherboard automatic switchon

It seems likely that the PC motherboard's automatic switchon function causes voltage spikes on 5V and 12V lines killing SSD drives

* and possibly other harddrives, even motherboards and other PC hardware, after 20-30 powerups, possibly later or sooner.

Probably most PC power-supplies (not just the cheap ones) are not tuned/tested to regulate properly when switching on at 80V input cap and charging in 10-30 msec to 300V (more likely to cause problem with 230-240V mains than 110V).

* Solution: do NOT enable the motherboard automatic switchon function unless the powersupply is known to regulate properly at the sudden voltage climb of the power supply input capacitor.

** BIOS programmers: apply 200 msec delay before the "immediate powerup switchon"