Boards that are power fussy \ VOGONS

Boards that are power fussy

Topic actions

Post a reply

First post, by Mau1wurf1977

Posted on 2013-11-11, 07:02

Mau1wurf1977 Offline

Rank l33t++

Rank: l33t++
Posts: 7652
Joined: 2010-08-27, 04:15
Location: Western Australia

So I got another BX440 slot 1 motherboard. Caps are fine, visual inspection is fine, looks to be in good condition. Insert a CPU, some RAM and a AGP video card and turn it on. PSU fan just spins for a moment then shuts down.

I reseat everything a few times. Just before declaring it DOA I try another PSU and it comes to life.

The PSU that it doesn't POST with is a quality XFX 450W. The PSU it POSTs with is a Gigabyte 420W that comes with Gigabyte cases.

While I'm happy that the board is working I'm wondering why the XFX shuts off. Is there some test a PSU performs before it fully power on?

My website with reviews, demos, drivers, tutorials and more...
My YouTube channel

Reply 1 of 4, by luckybob

Posted on 2013-11-11, 07:26

luckybob Offline

Rank l33t

Rank: l33t
Posts: 4827
Joined: 2009-04-30, 04:43

my money is on a missing "pwr good" wire and or 3.3v sense lead. or the motherboard in question does NOT supply a pwr good signal, thus telling the "quality" psu to turn off where the gigabyte one doesnt care.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 2 of 4, by Mau1wurf1977

Posted on 2013-11-11, 07:34

Mau1wurf1977 Offline

Rank l33t++

Rank: l33t++
Posts: 7652
Joined: 2010-08-27, 04:15
Location: Western Australia

Something I've noticed, the board takes quite a while until something on the screen appears. Maybe it's just too slow for these modern PSUs?

My website with reviews, demos, drivers, tutorials and more...
My YouTube channel

Reply 3 of 4, by Logistics

Posted on 2013-11-11, 13:55

Logistics Offline

Rank Oldbie

Rank: Oldbie
Posts: 524
Joined: 2013-02-06, 06:37
Location: San Jose, CA

Is it a server board? Seems like my server boards often take a long time to post compress to the majority of regular desktop boards.

Reply 4 of 4, by Mau1wurf1977

Posted on 2013-11-11, 13:56

Mau1wurf1977 Offline

Rank l33t++

Rank: l33t++
Posts: 7652
Joined: 2010-08-27, 04:15
Location: Western Australia

The board features jumper less configuration so maybe that's why. However after mucking around a bit more, it now starts also with the XFX PSU. Weird.

I got two identical boards coming and will see if they behave the same or not.

My website with reviews, demos, drivers, tutorials and more...
My YouTube channel

Go to top of page Go to top of page

Back to General Old Hardware

Main menu

Common searches