Page 20 in the A7M266 manual v1.02:
re: VIO & VIO1 jumpers -
The picture illustrated in the manual shows both jumpers in the top position i.e pin 1-2 in the picture.
My problem is that the 2 mobo's I've received have both had these jumpers set on pin 3-4 by default. That is, pin 3-4 as per the manual picture.
The pin numbers are not printed on the board so I can't tell if it's a manual misprint or an assembly line mistake regarding jumper placement.
It appears that the current batch of A7M266's here in oz are all set this way.
So, my question is:
Is the manual wrong or are the jumpers set wrong, and how the hell can I be sure?
I would be interested in the answer to your question.
To further complicate matters VIO1 which sets the voltage for DDR DIMMs has a default setting of 2.7V which is close to being out of spec. My DDR (Samsung M368L3313BT1-CB0 256MB) is rated at 2.5V +/- 0.2V.
I have read (although NOT in the Asus A7M266 manual) that VIO1 can be set to 2.5V by removing the jumper altogether.
Is there some way to actually see what VIO &/or VIO1 voltage I am running?
Neither the BIOS nor the Asus Probe program show them, but is there some other way to check them?
May 14, 2001 7:37:21 AM
You could post a question ASUS support and pray for an answer... I did, and obviously me praiers were heard...
Here's the correspondance:
Thanks for choosing ASUSTeK.
Thank you for your paying attention to us. We will correct this item in
future manuals. And we are sorry for your any inconvenience.
ASUS Customer Service Center Shanghai
ASUS Web site : <http://www.asus.com.tw>
ASUS Ftp site : <ftp://ftp.asus.com.tw>
ASUS Knowledge Base : <http://knowledge.asus.com.tw>
ASUS NetQ : <http://www.asusnetq.com.tw>
"Joacim Boive" <email@example.com> wrote in message
> Then perhaps I might be so boled to suggest you to post an updated manual
> this board on your website...
> The one currently there contains the same error...
> Joacim Boive
> >===== Original Message From Ricky-ASCS_TSD <firstname.lastname@example.org> =====
> >Dear Customer,
> > Thanks for choosing ASUSTeK.
> > The setting on the manual is not right. The pin 3 and pin 4 being
> >shorted is the default setting. If any future problem, please feel free
> >us know.
> > Best Regards,
> >ASUS Customer Service Center Shanghai
> >ASUS Web site : <http://www.asus.com.tw>
> >ASUS Ftp site : <ftp://ftp.asus.com.tw>
> >ASUS Knowledge Base : <http://knowledge.asus.com.tw>
> >ASUS NetQ : <http://www.asusnetq.com.tw>
> >"Joacim Boive" <email@example.com> wrote in message
> >> Hi!
> >> I just bought the above M/B.
> >> When following the manual it says the the jumpers for VIO/VIO1 should
> >> 3.30/2.7 but my board was set to 3.45/2.8, wich is it?
> >> Best Regards!
> >> Joacim Boive
Asus probe (V2.12.06) in the monitor summary screen and the voltage monitor screen display a +3.3V level which I believe is VIO.
In order to get a more comprehensive display of voltages: VCORE 1.75 (set by VID 1:4), DDR 2.5 (set by VIO1), clock voltage 3.3 (set by VIO), and +5, +12, -5, -12 I use SiSoft Sandra 2001 or Motherboard monitor (MBM V5.05) which can be downloaded free from: