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Install Quad Q9450 on a A775 socket with FSB 1066Mhz ?

Forum CPU & Components : CPUs - Install Quad Q9450 on a A775 socket with FSB 1066Mhz ?

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freefalling   09-22-2009 at 11:04:27 AM

Hi,

I have an old Pc with an ASUS P5B Deluxe ([url=http://usa.asus.com/product.aspx?P_ID=bswT66IBSb2rEWNa][/url]) motherboard.

Is it possiable to install the Quad Q9450 on it? will it use the 1066FSB speed?

If u are wondering, I want to keep this PC since it has a RAID5 array a strong GPU & 8GB of memory, so an upgrade to a Quad Q9450 will give me a decent second workstation/render slave.


Thanks
Eran

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jimishtar   09-22-2009 at 11:21:02 AM
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it sais it will run 9450, but u must have at least "1231" version of the bios.
just flush the newest bios version for your board, and u should not have any problems.

------------------------------ "Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway" —Tanenbaum,(1996) Computer Networks.
 Reply to jimishtar
freefalling   09-22-2009 at 11:25:21 AM
- 0 +

It also says "Compatible with all FSB1333/1066/800/533MHz CPUs except Quad Core" in the front marketing page of the board ??
any ideas ?


Thanks
Eran

Reply to freefalling
outlw6669   09-22-2009 at 11:30:19 AM
- 0 +

Welcome to the forums!

As already stated, the Q9450 is supported as long as you have BIOS version 1231 or higher.
Make sure you are updated to the latest BIOS and you will be fine.

------------------------------ If the automobile had followed the same development cycle as the computer, a Rolls-Royce today would cost $100, get a million miles to the gallon, and explode once a year, killing everyone inside.
PSA
 Reply to outlw6669
ainarssems   09-22-2009 at 02:09:02 PM
- 0 +

That motherboard is P965 chipset based and officially only supports FSB up to 1066. Beta bios 1231 is supposed to support 1333 FSB CPU's but it does not say if it will automatically overclock m/b to run at 1333 FSB or if it will run at 1066 FSB with reduced cpu speed which would be 2.127GHz for Q9450. Also if it overclocks it to 1333 FSB there is no guaranty that it will work on 100% of cases. You should clarify with ASUS support. Or play it safe and get Q6600 or Q6700.

Reply to ainarssems
outlw6669   09-22-2009 at 02:43:56 PM
- 0 +

From the ASUS P5B Deluxe FAQ:

Quote :

Problem:
I have just purchased an ASUS P965 chipsets based motherboard with FSB1333 support, and found the system may refuse to boot when particular DIMM modules have been installed.

Are there any special requirements for FSB1333 support on these motherboards?

Answer:
As FSB1333 support on P965 chipsets based motherboards are done via overclocking techniques, the memory support requirements may be rather critical as compare with conditions when working with its natively supported FSB frequencies.

ASUS has hence implemented a series of BIOS updates to improve its memory compatibility under FSB1333. Please kindly update your BIOS to the following or later versions to allow better memory compatibility under FSB1333 mode:



P5B / P5B Telsky: 1604
http://dlsvr01.asus.com/pub/ASUS/m [...] B-1604.zip

P5B Deluxe / P5B Deluxe Wifi-AP: 1215
http://dlsvr01.asus.com/pub/ASUS/m [...] BD1215.zip

P5B Premium: 0705
http://dlsvr01.asus.com/pub/ASUS/m [...] BPR705.zip

P5B-E: 1601
http://dlsvr01.asus.com/pub/ASUS/m [...] BE1601.zip

P5B-E Plus: 0616
http://dlsvr01.asus.com/pub/ASUS/m [...] BEP616.zip

P5B-Plus / P5B-Plus VISTA Edition: 0804
http://dlsvr01.asus.com/pub/ASUS/m [...] BPL804.zip

Commando: 1404
http://dlsvr01.asus.com/pub/ASUS/m [...] do1404.zip



Quote :

Problem:
My motherboard has been listed on ASUS CPU support list as being able to support FSB1333 processors.
However, after checking Intel website, the north bridge chipset only suppose to support up to FSB1066.
Does this mean there is going to be some limitation to its FSB1333 support?

Answer:
Yes, as the FSB1333 support was implmented based on overclocking north bridge chipset from FSB1066 mode,
while chipset does not support asynchronous frequency adjustment between FSB and RAM,
the supported memory specification will differ as compare with its natively supported FSB settings, in order to keep the same FSB/RAM frequency ratio.
For P965 chipsets, under FSB1333 mode, memory can only operate under the following frequencies:
Originally DDR2-533 will become 533MHz*1333/1066 = 667MHz
Originally DDR2-667 will become 667MHz*1333/1066 = 833MHz
Originally DDR2-800 will become 800MHz*1333/1066 = 1000MHz

As for 975X chipsets:
Originally DDR2-533 will become 533MHz*1333/1066 = 667MHz
Originally DDR2-667 will become 667MHz*1333/1066 = 833MHz

Hence only when operate under 1333/667 mode, will the system operate under a FSB 1333 configuration without CPU and memory overclock or underclock.
It is adviceable to adjust memory timing and its supply voltage manually if desired memory frequency cannot be achieved.



As the P965 chipset is highly overclockable (400Mhz+ easily), there should be no issues running the E9450 at FSB 1333.

Message quoted 1 times
------------------------------ If the automobile had followed the same development cycle as the computer, a Rolls-Royce today would cost $100, get a million miles to the gallon, and explode once a year, killing everyone inside.
PSA
 Reply to outlw6669
capcaunu   09-22-2009 at 08:46:34 PM
- 0 +

freefalling, I would not 100% recommend that upgrade. Unless you're using very cpu intensive applications (3d rendering, audio/video rendering) you really DO NOT NEED A QUAD CORE.

If you do, buy a new mainboard from intel. Chances are your mb will start with the quad core but won't use it 100%. Plus, if you don't need it, don't buy it.

Reply to capcaunu
Bronze CPUs badge jsc   09-22-2009 at 10:34:54 PM
- 0 +

outlw6669 wrote :


As the P965 chipset is highly overclockable (400Mhz+ easily), there should be no issues running the E9450 at FSB 1333.


The nVidia 680i chipset was "highly overclockable", but it didn't support the Q9450. There are more factors involved than just the ability of the chipset to run at a certain frequency.

Message quoted 1 times
Reply to jsc
outlw6669   09-23-2009 at 10:28:51 AM
- 0 +

jsc wrote :

The nVidia 680i chipset was "highly overclockable", but it didn't support the Q9450. There are more factors involved than just the ability of the chipset to run at a certain frequency.


:lol: :lol: :lol: 680i highly overclockable :pt1cable:

The reference to the overclockability of the P965 was in response to ainarssems' concerns that it would not be able to run past the officially supported FSB 1066 (266Mhz).
Unlike a nVidia 680i based system, support for the Q9450 is already there as of BIOS version 1231.

@ capcaunu,

Op has stated this machine will be used as a workstation and for rendering.
A quad core CPU will most likely be able to stretch its legs nicely here.

Also, as the motherboard supports it, it will be able to utilise it 100%.
No real need to upgrade the motherboard yet unless other factors require it.

------------------------------ If the automobile had followed the same development cycle as the computer, a Rolls-Royce today would cost $100, get a million miles to the gallon, and explode once a year, killing everyone inside.
PSA
 Reply to outlw6669
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