*****OFFICIAL OcUK/JW IP35 Pro THREAD*****

Yeah 1:1 was what I first thought, but everytime I try it wont get past the post screen and I have to power it off and then it resets the bios.

Not sure if I need to give my ram some more juice or what. Problem is once it fails I just can't be bothered sitting testing and finding out whats causing the problem :)

Got one other question on the memory config page where you can set the memory to 800mhz or 667 what exactly does that do? Since the rest of the memory fsb settings are done on the frequency page. I'm not sure if this question been answered else where in this thread or not if it has excuse my poor reading skills.
 
Jumping said:
Yeah 1:1 was what I first thought, but everytime I try it wont get past the post screen and I have to power it off and then it resets the bios.
Click to expand...

On 1:1

266MHz CPU = 533MHz RAM (PC4200!)
333MHz CPU = 667MHz RAM (PC5300)
400MHz CPU = 800MHz RAM (PC6400)

Every extra 1MHz on FSB = 2MHz on the RAM

On 1:2

266MHz CPU = 1066MHz RAM (PC8500)
333MHz CPU = 1333MHz RAM (PC10600)
400MHz CPU = 1600MHz RAM (DDR3 anybody?)

Every extra 1MHz on FSB = 4MHz on the RAM

On 1:1.2

266MHz CPU = 667MHz RAM (PC5300)
333MHz CPU = 800MHz RAM (PC6400)
400MHz CPU = 1000MHz RAM (PC8000)

Every extra 1MHz on FSB = 2.4MHz on the RAM

On 1:1.5

266MHz CPU = 800MHz RAM (PC6400)
333MHz CPU = 1000MHz RAM (PC8000)
400MHz CPU = 1200MHz RAM (PC9600)

Every extra 1MHz on FSB = 3MHz on the RAM

Jumping said:
Not sure if I need to give my ram some more juice or what. Problem is once it fails I just can't be bothered sitting testing and finding out whats causing the problem :)
Click to expand...

Effort = Results unfortunately.;)

Jumping said:
Got one other question on the memory config page where you can set the memory to 800mhz or 667 what exactly does that do? Since the rest of the memory fsb settings are done on the frequency page.
Click to expand...

It's the bootstrap setting. For CPU FSB upto 400MHz, use the 667MHz bootstrap. For CPU FSB's over 400MHz, use the 800MHz bootstrap.
 
DAMN nice post WJA might print and frame that table :D, what can I say spending all day at work fixing stupid IT issues makes Jumping a lazy boy at home :)

So 1:1 should be the ideal setting for my pc6400 RAM, and I guess I should use the 800mhz bootstrap for 400mhz fsb, I have it set to 800mhz on my default 333fsb setting and it seems to work ok.

No wonder my poor puter didn't post when I used 1:2 thinking it was the other way round .

Again thanks for that explanation for the dividers on this mobo.

To go OT I remember when I was young my mum and dad had an Orange Saab v4 which managed to overheat when we was driving through a Safari park in the lion enclosure, thankfully after letting it cool down a bit we could drive out :D
 
Do you think it would be a good idea to rename the dividers to integers? like 4:5 instead of 1:1.2? just for parity with a lot of other boards I've used. Or am I wrong and 1.1.2 is better?
 
spicypixel said:
Do you think it would be a good idea to rename the dividers to integers? like 4:5 instead of 1:1.2? just for parity with a lot of other boards I've used. Or am I wrong and 1.1.2 is better?
Click to expand...

I think this is common to most Intel chipset boards these days. Certainly ASUS and Gigabyte P35 and X38 boards are like that.
 
Thanks Kenofstephen, will give it a spin later on.

Just got it post at 9x400 thanks to WJA nice chart my memory seems happy :D
 
Yeap I noticed AHCI disapeared, guess I'll have to flash again when b is out then :)

I was hunting every where in the bios for AHCI :D
 
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