Gigabyte P35C-DS3R fsb setting ignored

rikky

rikky

rikky

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Hi, I have a version 2 Gigabyte P35C-DS3R motherboard with F10 Bios on it which will not overclock because the FSB remains at default no matter what I set it as. I have changed the memory, Q6600 processor and even the graphics card but on further digging it seems to be a fault with this particular Gigabyte Motherboard.
It will let me change everything: vcore, memory setting and alter the multiplyer but no matter what I set the FSB to even up one increment or underclock it still comes up as being default in cpu-z.

Have done a bit of digging and this chap had the exact same problem I had:
http://forums.anandtech.com/message...ORDFRM=&STARTPAGE=1&FTVAR_FORUMVIEWTMP=Linear

does anybody know if flashing to newer bios will cure this or anything else can be done to solve it ... I had my quad core Q6600 overlocked @3ghz for about a month before this suddenly happened.
 
The DS3R resets the FSB if you have legacy usb support on and a usb drive present at boot. I just had to dissable that option in the bios and its been fine ever since. Could that be your issue?
 
Hi, I have disabled the us legacy setting but still the same problem FSB will not deviate from running at 333mhz no matter what adjustments are made.
 
Still no joy I have updated the drivers but same problem FSB cannot be adjusted - nobody had anything similar with this board.

Would this be accepted for RMA as it does not do what it is advertised to do unless you want to run at stock speed.
 
If its doing it because of a fault rather than a mistake your making ( no implications there) then yes, its not working as advertised. Does it let you change it in the bios but then reset on the post screen after it reboots?
 
Hi, yes I had it overclocked for about a month at 3ghz. I can change the FSB in the bios either overclocking or underclocking it but the FSB shows up as 333mhz in CPU-z.

All other settings that are altered in the bios show up as being changed, ie memory speed and timings, CPU multi and voltage changes but no matter what the FSB always remains at default.

Pc starts up as normal (doesn't reset) with no beeps or anything and once I go back in to the bios all changes including the FSB alterations are as I set them up (ie not default) .... strange one indeed but looking round a few people have had similar problems with this board.
 
have you updated to the lastest cpu-z? (1.46 i think)

Also there is a F12 beta bios out for the board which is mainly aimed at users with E8400/8500 E0 steppings.

Try updating the bios and cpu-z and see what happens
 
I have this problem with my P35C DS3r rev 2.0 board, it is quite common for the Gigabyte boards of this flavour.

What works to resolve it every time...

Remove the mains lead from the PSU and place a jumper on the CMOS pins and leave it like that for around 20 minutes.

Remove the jumper and then plug the lead back in and then go into the BIOS and make and save your settings, it should work.

In the gigabyte forums there are many posts likes this and the answer as always been the same as what I have written.

The only variation that I apply is that I have a overclocked setting saved (I think it is either F11 or F12 when in the main BIOS screen) that I load by pressing either F12 or F11 - I forget which one, when I have entered the BIOS for the first time after removing the CMOS jumper. So what you could do is make all the settings you need to in the BIOS and then save it first (the F11 or F12 key) before you switch the PC off to do the CMOS jumper trick and then re-apply them after, if that makes sense.!
 
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Hi Vimes, yeah kind of guessed that this board had some problems!!!

I have reset the jumpers, removed the battery, removed the psu lead for about 10 minutes and then restarted up the machine and yes success I could alter the FSB no problem ...

I then turned the PC off to connect it back up to my new monitor and speakers etc. only to find it has reset itself back into the state of no change to FSB takes effect ... now obviously I don't want to have to reset jumpers etc. everytime I start my PC up - what do I do to get round this??

I also flashed to the latest bios (F12) and that made no difference whatsoever.
 
Hi Vimes, yeah kind of guessed that this board had some problems!!!

I have reset the jumpers, removed the battery, removed the psu lead for about 10 minutes and then restarted up the machine and yes success I could alter the FSB no problem ...
Click to expand...



Note what I did for the second bit.....

The only variation that I apply is that I have a overclocked setting saved (I think it is either F11 or F12 when in the main BIOS screen) that I load by pressing either F12 or F11 - I forget which one, when I have entered the BIOS for the first time after removing the CMOS jumper. So what you could do is make all the settings you need to in the BIOS and then save it first (the F11 or F12 key) before you switch the PC off to do the CMOS jumper trick and then re-apply them after, if that makes sense.!

Doing the above or doing a setting that is conservative and then letting it cold boot a few times has, for me, sorted the problem out. Remembering that too high an overclock will cause the MB to reset to its default settings.

I suggest doing the italic bit :)
 
Hi Vimes, yeah that part of the equation did dawn on me!!
I downloaded the manual this afternoon and had a good read (as my brother threw the box and manual out once he had built this rig lol) and as you say after clearing the cmos once again I loaded in the overclocked profile that I had set up and everything seems to be working fine for now.

thanks;)
rikky.
 
You had any joy yet Rikky? I'm having the exact same problem problem as you with a 2.1 revision board and am no closer to a solution after a week of messing about.
 
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