Re: System building trouble

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Author: Stephen Partington
Date:  
To: Main PLUG discussion list
Subject: Re: System building trouble
I do happen to have a spare power supply, It is a known working device if
you want to arrange a meeting to borrow/test with it.

On Wed, Jul 31, 2019 at 9:23 PM Michael Butash <> wrote:

> Motherboards are intuitive, until they're not. Then they're just
> annoying/bug-ridden.
>
> Most motherboard and bios activity is around hardware function.which
> usually exists or doesn't toward whatever gpu or other high-speed device,
> like a 100gbe network interface you inserted there.
>
> Throw in some unexpected gpu(s), it'll crap out. Throw in some 40-400
> gigabit ethernet nics, they do the same. They dare you to use the full
> pcie bus.
>
> -mb
>
>
>
>
>
> On Wed, Jul 31, 2019 at 9:04 PM Harold Hartley <>
> wrote:
>
>> When I’ve bought motherboards before, the manual are no help at all. I
>> end up searching the web.
>>
>> On Wed, Jul 31, 2019, at 20:57, Michael Butash wrote:
>>
>> I've thought the same until after various fiddling with stupid n-by-x
>> power connections of different form-factors of power/mobo/gpu - it's just
>> some damn formula I never figured out. Last 2 mobo's and gpu's I've had to
>> fiddle with both 6 or 8 pin to make work on my gpu/mobo, once it works I
>> rather forget being few/far between and curse having to fiddle in the first
>> place.
>>
>> YMMV here is all I'm declaring, either way it's quirky. Don't trust the
>> motherboard power. Thank vendor wars.
>>
>> -mb
>>
>> On Wed, Jul 31, 2019 at 8:48 PM Harold Hartley <>
>> wrote:
>> > __
>> > I’m starting to think that you may have a bad motherboard.
>> >
>> > On Wed, Jul 31, 2019, at 20:30, Michael Butash wrote:
>> >> I've had issues trying to power a gpu and get display with the 6 vs. 8
>> pin connector. Or both, just for functionality's sake. Need to figure out
>> which standard they want/prefer. AMD vs. Nvidia.
>> >>
>> >> One or the other, I've ended up with 1x of either as workable, not
>> both, not the wrong one (which ever that is), and then all tends to be
>> right with boot.
>> >>
>> >> It seemed always yet another amd vs nvidia thing which to connect, but
>> almost any time in the past 10 years I've need a psu that supported the 6/8
>> pin power connector explicitly. Expect the pcie power to
>> fail/glitch/piss-you-off - use external power supply, and a beefy psu at
>> that for any/all that gpu of power.
>> >>
>> >> -mb
>> >>
>> >>
>> >>
>> >> On Wed, Jul 31, 2019 at 6:09 PM Adam Mercer <>
>> wrote:
>> >> > On Tue, Jul 30, 2019 at 9:59 AM Stephen Partington <
>> > wrote:
>> >> >
>> >> > > The PCI-express spec has a limit on the power draw it can allow
>> for a GPU If it takes more than that it has extra power connectors. That
>> might be a good check. make sure you don't have a connector not connected
>> on your GPU. and/or try power on without a GPU connected. (if there is no
>> video at least you will get power up and beeps.
>> >> >
>> >> > Same behaviour with and without the GPU connected, i.e. nothing...
>> The
>> >> > GPU has an 8 and 6 pin power connector and both were connected when I
>> >> > tried with it connected.
>> >> >
>> >> > Cheers
>> >> >
>> >> > Adam
>> >> > ---------------------------------------------------
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>> >
>> > --
>> > Harold Hartley
>> > 17632 N. 5th place
>> > Phoenix, AZ 85022
>> >
>> >
>> >
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>>
>> --
>> Harold Hartley
>> 17632 N. 5th place
>> Phoenix, AZ 85022
>>
>>
>>
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--
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen
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