suggest mobo for p4 2.66ghz lga 775 processor

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anand20383

Broken In
thanks for your suggestion topgear. definitely the mobo you have suggested is an awesome mobo but when i checked its website for cpu support list i cant find my cpu i.e; p4-506 2.66 GHZ/1M/533/0?A and when i googled for it , i found in some links that this proc is not supported by that mobo... btw the above mobo Asus P5G41T-M-LX is out of stock in flipkart. so please suggest me another mobo...
 

topgear

Super Moderator
Staff member
^^ Then you don't have a choice other than getting the G41M combo.

^^^ lord havent they hoarded price of 775 boards!!! :(
I remember about a year back most G41 solutions hovering from 2-2.4k, cheapest being the msi and costliest being the asus.

(PS:The P5G41T-M-LX is the one with IDE support and the MLX3 is the one without it ? Right? )

yes ..
 
OP
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anand20383

Broken In
hey guys i have ordered ga-g41m-combo and corsair 4gb 1333mhz RAM from flipkart and as usual they have been delivered within 4 days but the problem now is that when i assembled everything and starting my system there is no response from it ... no beeps nothing but the power led ,hdd led are glowing and the cpu fan running . i have tried every possible combination but no use.so pls tell me what to do to make it work caz i have already spent abt Rs.4500 on the above parts.
 

aloodum

Journeyman
well anand apart from cpu incompatibility the other thing that might be the issue is a dead on arrival mobo...
The only way to troubleshoot the same is to try using a different cpu of a more recent make on the same motherboard.
 

Naxal

Little Kid
hey guys i have ordered ga-g41m-combo and corsair 4gb 1333mhz RAM from flipkart and as usual they have been delivered within 4 days but the problem now is that when i assembled everything and starting my system there is no response from it ... no beeps nothing but the power led ,hdd led are glowing and the cpu fan running . i have tried every possible combination but no use.so pls tell me what to do to make it work caz i have already spent abt Rs.4500 on the above parts.

Please note the processor you are having is P4 2.66 GHz with FSB of 533. Since the G41 chipset you are trying to use works with processor linked frequency for its RAM module hence the chipset is trying to run your RAM @ 533 MHz

I doubt if the DDR-III you are using has a native support to this 533 MHz hence the system is unable to start.

Try with DDR-II, see if that can get the system booted.
 

aloodum

Journeyman
@@ Naxal : ^^ Gud point ...intresting....IIIRC , the board tries to achieve a 1:1 or 1:2 FSB:DRAM ratio .. i guess 1:2 the default stable one.
Now in his case its a 533 Mhz FSB clock, so that means a 133 and 1/4 mhz frequency

So the correct Ram settings would be either 133 1/4 Mhz or 266 1/2 Mhz

If it were ddr2, then say DDR2 533 MHZ (2 X 266 1/2)
Then FSB:DRAm at 1:2 would mean 133 1/4 : 266 1/2

Now in case of DDR3 _1333, means it should run at 266.5 Mhz DDR3_533 and this is not possible! :p

@@ OP : Yes as Naxal suggested do try with a DDR2 stick, preferably a 533 Mhz stick
 

Naxal

Little Kid
@Aloo Bhai,

Check this

Before OC with default Q6600 processor settings

*i48.tinypic.com/144nsi.jpg

After OC by matching Q6600 FSB with RAM FSB

*i49.tinypic.com/6s4ze8.jpg
 

aloodum

Journeyman
^^^ ahh the q600 is 1066Mhz clock, ie 266 Mhz fsb
the default setting scaled back your ddr3 1333 to DDR3 1066 ie 533Mhz
1: 2 is the default setting

whereas on ocing u went 333: 667 chopping off the quarter and half fractions)
Again 1:2 ratio
 

Naxal

Little Kid
Point I tried to make is that, with Chipset G41, I guess processor FSB will have to match the DRAM, in this case of 533 MHz FSB, either the RAM have to have compatibility to run with 533 MHz FSB or one has to OC the processor to match the lowest running FSB of the RAM used.

I doubt with P4, OCing in that manner would be possible. I think the lowest FSB needed for DDR-III is 800 MHz ??
 

topgear

Super Moderator
Staff member
I suspect this a DOA issue ... Op's CPU FSB is 133 Mhz and if the mobo can support 1:4 ( FSB:DRAM ) / 1:3 ratio then the DDr3 ram module should run at ~532 / 399 Mhz which translates into ~1066/~800 Mhz ( effective ) ram speed and DDR3 ram can work those speeds..

The frequency of ram and cpu FSB can't be the same always ... for eg. - you can use a DDr2 667 Mhz with 800 Mhz CPu FSB easily and 1333 Mhz ram with 800 Mhz cpu fsb but they will either run at their own speeds maintaining a proper CPu FSB ratio or may be OCed ( multi will be dropped to maintain the stock speed ) - so there's can be many mix and match combo of CPU fsb and ram frequency which should work well with DDr3 ram and 1333 Mhz DDr3 ram can be automatically clocked to 444/518/592/666 Mhz or any speed in-between or a little lower say ~400 Mhz..

the point is G41 chipset can work well with 533 Mhz FSB cpus and 1333 Mhz ram ( Clocked down to 1066 Mhz ) but G41 chipset has no native support for 533 Mhz FSB cpus though theoretically it should work but the compatibility depends more on how well the bios is made - this is the reason why some G41 mobos supports 533 Mhz FSB cpus and some don't.

Link : *www.thinkdigit.com/forum/cpu-mothe...gabyte-g41-combo-motherboard.html#post1777998
 

CyberKID

In search for Tech Gyan!
Anyone missing me?
@anand20383: The Gigabyte G41Combo should perfectly work with your processor. Here, I and Naxal have got G41 based mobos in the recent past and have successfully got the things working. I posted up a thread a while ago, I suppose it'll help you out clearing your doubts Revival of thedead (P4 system). There's no problem with the chipset's compatibility with the P4 you have. I too have one (P4-516) running happily with the MSI G41M-P26-suggested by dashing.sujay. Below is my system config for your reference and it's working perfectly. RAM's mostly, are capable of adapting the frequencies the motherboard forces them to run at. I have Kingston 1333MHz DDR3 sticks running in my PC, so, there's no issue with that. I suggest first check your RAM stick.
 

Naxal

Little Kid
@CyberKID

What is the FSB you are running for your 533 MHz P4 ?? and what is the DDR-III FSB with present OC 3.5 GHz ?

It would helpful for me you can please post an image of your BIOS config image of OC settings for your processor and RAM.

Thanks.
 

CyberKID

In search for Tech Gyan!
My processor is rated at 533 MHz. Will post detailed BIOS settings/DRAM:FSB ratio in the evening. Will try posting pics of the bios screen for your reference.
 

CyberKID

In search for Tech Gyan!
I hope @anand20383 doesn't mind us interfering in his thread.
*i.imgur.com/cc0SQ.jpg

So, I hope the thing's getting clear with the screenshot of my PC's bios

CPU-Z Data for my PC
*valid.canardpc.com/cache/banner/2568341.png
 

Naxal

Little Kid
@CyberKID

Thanks for taking the pain.

If i am not mistaking then your DDR-III 1333 MHz RAMs are actually running with frequency 640 MHz, same as your processor, which is now running 640MHz FSB, OCed from 533 MHz..

So neither RAM (which is default 1333 MHz) nor processor (which is default 533 MHz) is running with their default given native operational FSB.

One more request, what happens if you set your processor FSB to default value ?

That is that "Adjust processor FSB MHz" field from 160 to 133 (that is your default value).

Will the system boot ?

@Topgear

Please comment !!
 

topgear

Super Moderator
Staff member
if he sets CPU FSB to 133 Mhz he needs to set FSB/DRAM ratio to 1:1.60 ( any lower ratio may not work ) which should give him ~424 ( ~212 Mhz ) speed and the lowest possible speed of DDr3 ram module is 200 Mhz ie 400 Mhz effective ..
 

Naxal

Little Kid
if he sets CPU FSB to 133 Mhz he needs to set FSB/DRAM ratio to 1:1.60 ( any lower ratio may not work ) which should give him ~424 ( ~212 Mhz ) speed and the lowest possible speed of DDr3 ram module is 200 Mhz ie 400 Mhz effective ..

So the lowest FSB possible for DDR-III is 400 MHz ?

In that sense, 533 MHz FSB based processor should not need any touch of any settings as RAMs would be at 533 MHz.
 

CyberKID

In search for Tech Gyan!
Whenever I set the bios defaults, it doesn't need me to do any other tweaking, that's why, IMO, the motherboard has Auto settings for DRAM/FSB ratio, as it automatically sets the best possible DRAM/FSB ratio. Also, I do not overclock by tweaking other settings like processor voltages, DRAM/FSB ratios, etc., I just increase the processor frequency to a desired level and leave other settings intact as the system automatically does it for me. Anyways, I'm posting a screenshot of the bios with default settings.

*i.imgur.com/Dxd6A.jpg
 
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