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Redfox 6XV93A setting.

Posted: Thu Jul 11, 2002 1:31 pm
by ajzchips
OK, here goes, although this question would better fit a "What does this MOTHERBOARD setting do"? (Soupy, you might want to rename this section to ".......BIOS / MOTHERBOARD......")

I might be getting this motherboard in a few days, and on page 11 of its manual: http://www.redfox-online.com/Manuals/6xv93a.zip (it's small, don't worry).

...there's JP5 (3 jumpers) for "USB and AGP USB mode" with 2 possible settings:
USB2 FOR USB2: all 3 jumpers on pins 1 and 2.
USB2 FOR AGP: all 3 on pins 2 and 3.

Now, anybody know what that means? I've never, ever, come across a setting like this. :?

BTW, USB2 has nothing to do with a second set of USB pins for additional USB ports, for those of you who'll just guess an answer :wink:

Posted: Thu Jul 11, 2002 2:40 pm
by soupy
Hm, maybe the IRQ can only go to the AGP slot or the 2nd USB bank.

Posted: Thu Jul 11, 2002 3:10 pm
by ajzchips
There is NO second USB bank....

Posted: Thu Jul 11, 2002 3:33 pm
by soupy
Huh. The description on their web page said there is.

http://www.redfox-online.com/Prod.%20Ma ... 6XV93A.htm

1 - Dual USB Header (for computer casings with front-panel USB ports)

Posted: Thu Jul 11, 2002 3:50 pm
by ajzchips
I'll double-check that. The manual doesn't seem to even hint the second USB bank, and I don't recall ever seeing it (it's not with me; I only had a quick look at it).

Anyway, I was more after the definition of "USB or AGP USB mode"

Posted: Fri Jul 12, 2002 12:34 am
by ajzchips
Finally got the board. The description of the board on their site is the result of a disastrous cut&paste. The board has NO second USB header.

Posted: Mon Jul 15, 2002 5:38 pm
by ajzchips
Thanks to an old post by Edwin, I found out my board is identical to the ACORP 6VIA83B, where I got a brand new BIOS update from :)

Now, I've written their support staff regarding the "famous" JP5, and this is their reply:

From: "ACORP-FAE" <fae@acorp.com.tw>
----------------------------------------------------------------
Dear Sir:

thank you for your support kindly.
JP5 is a definition of USB port,if your AGP VGA Card support USB port
function,you could set the jumper,if not,don't have to chance it.
if you still have any technical problem,please contact us again.

Best Regards.
ACORP ELECTRONICS CORPORATION
Technical Support
WWW.ACORP.COM.TW
-----------------------------------------------------------------

Now.... what's this about an AGP VGA card supporting USB port function?

Posted: Mon Sep 16, 2002 10:34 am
by ajzchips
From ACORP'S FAE again:
Dear Sir ,

Good day to you . Thank you for your e-mail .

In the past , motherboard can support a special VGA card with contains USB connector , but it depended on VGA card's manufacturers support. However , this function was not interested by VGA card's manufacturers. You can't see this kind product in the marketing . Therefore ,The Jumper JP5 it means , if you have this kind speciall VGA card , you need to adjust it . If you don't have this one , you can ignore Jumper JP5 , it doesn't effect your motherboard .

If you still have other questions , please contact us again , we will reply
you as soon as possible .

Best regards

ACORP ELECTRONICS CORP.
TECH.SUPPORT
http://www.acorp.com.tw
Now, I've asked them what it physically does. I suppose (like on some Gigabyte boards and others) it switches from onboard-regulated 3.3V to direct PSU 3.3V to better feed the "hypothetical" USB on VGA...[/quote]

Posted: Mon Sep 16, 2002 8:01 pm
by Rainbow
Test it with ohm-meter.

AGP slot really has USB pins http://www.hardwarebook.net/connector/bus/agp.html
A4=USB-
B4-USB+

Posted: Mon Sep 16, 2002 8:49 pm
by ajzchips
Rainbow, did you know about the USB pins in the AGP port, or did you just find out now? I was totally unaware of this issue.

In normal situations (most mobos), are A4 and B4 disabled?

Posted: Mon Sep 16, 2002 9:39 pm
by Rainbow
Found that some time ago while repairing a board - I wanted AGP pinout and found that USB is there.
BTW.: USB devices are powered by 5V which is also present on the AGP

Posted: Mon Sep 16, 2002 9:42 pm
by ajzchips
Mea culpa.... you're right... 5V.... where was my head!!!