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

WJA96 said:
The Command Rate adjustment did indeed disappear between 1.2 and 1.3, so you'll just have to live with 2T I'm afraid. The RAM options haven't changed, so I'm not sure what's up with yours.
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I was reffering to the lack of divider in BIOS 1.4, flashed to 1.3b and they are present. Still can't get 1:1.2 to work properly though....:(
 
@ WJA96 (or Kenofstephen), what settings did you use to get your dividers working properly on a 200fsb CPU? My, FSB is set to 343, but I seem limited to either 1:1 (which works as it should, giving me 686mhzDDR - underclocked) or 1:1.2 which gives me a whopping (but unstable) 573, or 1146DDR. Seems it's locking it into 1.67 ratio. Ideally I would like a round 3Ghz CPU/1Ghz DDR2, so naturally I tried 1.5 ratio on 333fsb but it wouldn't boot, which suggests that it's probably somewhere close to 1:2! It must be something obvious, no?
 
Cairnsey said:
@ WJA96 (or Kenofstephen), what settings did you use to get your dividers working properly on a 200fsb CPU? My, FSB is set to 343, but I seem limited to either 1:1 (which works as it should, giving me 686mhzDDR - underclocked) or 1:1.2 which gives me a whopping (but unstable) 573, or 1146DDR. Seems it's locking it into 1.67 ratio. Ideally I would like a round 3Ghz CPU/1Ghz DDR2, so naturally I tried 1.5 ratio on 333fsb but it wouldn't boot, which suggests that it's probably somewhere close to 1:2! It must be something obvious, no?
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when I did 1:1.2 I had to make sure my ram got the right amount of Juice or it wouldnt boot!
 
I dont understand what you are after, the dividers are what they are and the only thing that will change what value you have is the FSB that you want to use for your CPU.

After that you will have to pick the dividier that will allow you to run your RAM at that FSB speed.

Increasing the RAM voltage sometimes help you to run your RAM at a speed that they aren't designed to do.
 
According to WJA96 nice table you should get 333x2.4 which is 799.4. I take thats the speed you want to get as its very close to pc6400 memory.

If you boot into Windows and run CPU-z does it say your ram run at 573mhz? Cause I noticed on my board setting the memory to 1:1 at 400fsb get reported as 667 on the post screen but running CPU-z it says I am actually running it at 800.

So hopefully its the same on your machine and its just the bios showing wrong values.
 
no, BIOS & CPU-z show the same thing. I've took some photos:

555vo6.jpg



photo0241crx6.jpg


photo0242cqh9.jpg
 
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well, set the FSB back to 200 using the 1:1.2 divider and my RAM is now at 400, what this motherboard playing at? Can someone please confirm that theirs will run 333FSB/PC6400 from a 800fsb CPU? This is seriously starting to drive me nuts!!
 
Jumping said:
Not sure m8

New bios out 1.4a
http://www.jwele.com/UserFiles/download/JP35V14A.BIN

v1.4a bios for JW-IP35-PRO.

fixed: HDD DMA issue, improves USB HDD compatibility.

AHCI is included.
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Tried it when it was 1.4(no 'A') but there were only 'auto' and '1:1' available. Think they've just re-named it 1.4a, as 1.4b will be available soon. But, I really don't know what's going on with mine. Would like to see what Ken or WJA96 thinks about my problem. I'm guessing the board is faulty, otherwise I'm stumped :(
 
It seems the new 1.4a is the new bios cause 1.4 didn't have AHCI in it so maybe its called 1.4a instead of 1.4b. Maybe Kenofstephen could clarify this for us.

Found a FAQ post on the J&W web page about Frequency and ratio's

About P35-PRO & P35S frequency ratio issue
There have relations with CPU about all Intel frequency ratio, the frequency ratio match CPU model, you may choose detail frequency ratio while using detail CPU model; in fact, it’s CPU frequency and DDR CLK frequency ratio, detail below info. 1. There may choose memory frequency DDR2 667 and DDR800 when using FSB200 CPU(due to P35 can’t support DDR2 533 memory) ,frequency ratio is 200/333=1:1.5 and 200/400=1:2; 2. There may choose memory frequency DDR2 667 and DDR2 800 when using FSB266 CPU, frequency ratio is 266/333=1:1.2 and 266/400=1:1.5; 3. There may choose memory frequency DDR2 667 and DDR2 800 when using FSB333 CPU, frequency ratio is 333/333=1:1 and 333/400=1:1.2 There have four kind ratio inure about frequency ratio according to market CPU model; below , 1:1, 1:1.2 ,1:1.5 , 1:2 We have not made memory frequency overclock on the p35 mainboard due to consider user overclock key is CPU frequency, so made down memory frequency by hardware, by the way, all frequency ratio can be take effect when CPU FSB be fixup;
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However reading that I still can't understand your issue...maybe I need to read that faq once more.
 
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Jumping said:
It seems the new 1.4a is the new bios cause 1.4 didn't have AHCI in it so maybe its called 1.4a instead of 1.4b. Maybe Kenofstephen could clarify this for us.

Found a FAQ post on the J&W web page about Frequency and ratio's



However reading that I still can't understand your issue...maybe I need to read that faq once more.
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That's hard to understand:confused:
 
Yeah I have read it a few times and I still can't work exactly what its suppose to mean. However I don't think it explains your issue.

I understand that English isn't the first language for most of the J&W employees (nor is it mine as I'm from Sweden) but some of the FAQ's answers are very hard to understand. Beside that J&W been great and seems to actually listen to people Kenofstephen been a great help in this forum.

Hopefully he will come round and shed some light on your issue Cairnsey.
 
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It's actually pretty straightforward.

What it says is that if you are using a slow CPU (200-266MHz FSB) then you should use the 667MHz bootstrap option on the DRAM Timings page, and for faster CPUs 266-400MHZ FSB use the 800MHz bootstrap option. The rest of it just tries to explain why - the range of multipliers only goes from 1:1 (actually 1:2) to 1:2 (actually 1:4) and that isn't a broad enough range to cover all CPUs with all RAM, so they have provided two bootstrap settings.

I would go back to the V1.3b BIOS if V1.4 is giving you odd results.
 
Well I'm having no success with 1.4a bios after I entered *** bios my hard drives just disapears.

Also one of my nic's has disapeared from Windows even tho both are enabled in the bios.

Im currently back on 1.4 but thats cause I only had it on my usb boot stick so I had to downgrade from 1.4a to it, I'm probably going to flash back to 1.3b which seems to be the best one for me any way.
 
I never even noticed you had an e2160 cpu Cairnsey :o thanks for clarifyign the issue kenofstephen.

Has anyone else tried the 1.4a bios? As I said earlie I jsut cannot get it to work properly, as soon as you been in the bios my sata drives just disapears from the bios I never had that problem with the 1.3b and AHCI enabled.

If I can be bothered today I will most likely go back to 1.3b as I liked AHCI and I haven't noticed any benefits from 1.4 bios.

Just interested to hear if any one else has had a similar experience with 1.4a.
 
kenofstephen said:
simple, because you are overclocking from 200FSB way upto 333FSB.
not a native 333FSB CPU.
anyway, great overclocking for your E2160, congrats.
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Why would that affect the 1:1.2 divider and make it = 1.66? Sorry, I'm confused. Why won't it simply multiply 333 by 1.2 to give 400mhz? Also when I'm at default FSB of 200, and set 1:1.2, the theory is that I should get 240mhz RAM, well in both BIOS and CPU-z it's showing up as 334mhz on a 3:5 ratio. (5/3 = 1.66). I'm really at a loss here!

As I'm in need of another CPU for a second system, I may just have to justify buying either a e8400 or a QG0 if you're sure this will make my dividers work again but I'm skeptical and don't want to waste any more money......
 
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