|
|
|
|
| Author |
Message |
Scotter
Guest
|
 Posted: Tue May 15, 2007 12:23 am Post subject: DS3 - CPU fan is always on - need BIOS help |
 |
|
Hi all -
What combination of BIOS settings do I change to get the CPU fan to run the
speeds it needs to run.
Right now it is always on 100%.
Thanks!
Oh I'm running latest BIOS from Gigabyte; version 11.
Scott |
|
| Back to top |
|
 |
|
|
Bill
Guest
|
| Posted: Tue May 15, 2007 8:05 am Post subject: Re: DS3 - CPU fan is always on - need BIOS help |
|
|
"Scotter" <spam@spam.net> wrote in message
news:Sr2dndvChrayKtXbnZ2dnUVZ_gidnZ2d@giganews.com...
| Quote: | Hi all -
What combination of BIOS settings do I change to get the CPU fan to run
the speeds it needs to run.
Right now it is always on 100%.
Thanks!
Oh I'm running latest BIOS from Gigabyte; version 11.
Scott
|
Looks at the "FAN Speed control method". It's at the top of page 42 of my
manual (rev. 1002). The manual says that if it's set to disabled your fan
will run at full speed.
-Bill |
|
| Back to top |
|
|
Paul
Guest
|
| Posted: Tue May 15, 2007 1:48 pm Post subject: Re: DS3 - CPU fan is always on - need BIOS help |
|
|
Scotter wrote:
| Quote: | Hi all -
What combination of BIOS settings do I change to get the CPU fan to run
the speeds it needs to run.
Right now it is always on 100%.
Thanks!
Oh I'm running latest BIOS from Gigabyte; version 11.
Scott
|
As Bill says, there are some hints in the manual.
Fans come in three pin and four pin versions. The four pin version has
a pin with a PWM function. That is pulse width modulation. The manual
I downloaded, says the BIOS has the option to run with "Voltage" control
(suitable for a three pin fan) or with "PWM" control (suitable for a
four pin fan). When I say four pin fan, I mean the tiny motherboard
header kind of four pins, and not a Molex disk drive connector.
In terms of what controls fan speed, normally there is a hardware
monitor in the SuperI/O chip. It has measurement capability (temp,
voltage, fan speed). It also has fan controls. Programs like SpeedFan
or the BIOS, can drive the registers in such a chip.
A second, newer method, uses a feature of the Intel chipsets. It is called
QST, and that uses a microcontroller in the Northbridge. For QST to work,
one of your DIMMs has to be installed in a certain socket on the motherboard.
(The manual says slot 1 or 2, nearest the processor.) That memory is used by
the microcontroller. When using QST, the microcontroller sets the fan speed,
and presumably that would make a program like SpeedFan unnecessary.
QST is part of a bigger function, but that bigger function is not used on the
majority of desktop motherboards. Intel sells motherboards, and Intel has a
couple "executive" desktop models using the Q965. In the Q965, the
microcontroller is basically used as a supervisor (AMT or active management
technology). Using the supervisor, the IT department in a big company, can
administer the computer remotely. They can even reset the PC if they want to,
out of band.
If you don't pay for the Q965 chipset, and have the P965 instead, a lot of
that functionality is turned off. But apparently Gigabyte is one of the
few companies to be using the QST function. I haven't seen this mentioned
as such, on other boards. The ICH8 Southbridge has the pins on it, that
control and monitor the fan. Apparently the supervisor function inside
the Northbridge, can reach down and do stuff to the Southbridge.
So, in summary, set the BIOS according to whether you are using a three
pin or four pin fan, on the four pin CPU header. If you select QST, then
select a DIMM slot as described in the manual. (In an Intel motherboard
manual, they recommend that DIMM0 on Channel 0 be filled, and in that
case, that is the DIMM nearest to the processor. Whether the same
recommendation would work on the Gigabyte board, would depend on whether
the DIMMs are laid out on the board, in the same order or not.)
HTH,
Paul |
|
| Back to top |
|
|
SumGuy
Guest
|
| Posted: Tue May 15, 2007 1:48 pm Post subject: Re: DS3 - CPU fan is always on - need BIOS help |
|
|
"Bill" <Bill_NOSPAM@comcast.net> wrote in message
news:yP6dnew4g4H6vtTbnZ2dnUVZ_hmtnZ2d@comcast.com...
| Quote: |
"Scotter" <spam@spam.net> wrote in message
news:Sr2dndvChrayKtXbnZ2dnUVZ_gidnZ2d@giganews.com...
Hi all -
What combination of BIOS settings do I change to get the CPU fan to run
the speeds it needs to run.
Right now it is always on 100%.
Thanks!
Oh I'm running latest BIOS from Gigabyte; version 11.
Scott
Looks at the "FAN Speed control method". It's at the top of page 42 of my
manual (rev. 1002). The manual says that if it's set to disabled your fan
will run at full speed.
-Bill
|
Speedfan needs some tweaking beofre it will control the fan.
It's not as simple as checking the box. Go to the speedfan site for info on
how to set this up. Having said that, it does not work with all chipsets.
Doesn't the gigabyte monitoring software allow you to cotrol the fan speed?
I see a setting there but have never used it. |
|
| Back to top |
|
|
|
|
| |
Watched Topics
Search
Register
Log in to check your private messages
Profile
Log in
Memberlist
Usergroups