Ask the moderators via PM ;)Quote:
Originally Posted by wytiwx
I think DFI isn't worth the efforts. It's possible but might require too much BIOS modding. Their Award BIOS doesn't like unsupported CPUs.
Keny,
Where does POST stop?Quote:
how to get a prescott to run on a tpower i45
I will get back to you with the post code when I get the board back out and running up. Probably a day or two before I get time toes with it.Quote:
Originally Posted by Antinomy
Finally got time to mess with this and the post goes nowhere, it stays on FF and doesn't move through the codes at all
If you want prescott on Biostar I45, I think VID mod first.Quote:
Originally Posted by Keny
Celeron D can post on DFI LP UT ICFX3200-T2R, but failed to OC FSB 800. With FSB mod, get no problem.
Mod way: FSB 800 mod
Mobo: DFI LP UT ICFX3200-T2R
Cooling: air
Ambient temp: 21C
http://www.miivion.com/data/attachme...m71izur3xl.png
Valid URL: http://valid.canardpc.com/show_oc.php?id=2728973
Is the VID mod on prescott the same as the VID mod on the celeron D, like below?Quote:
Originally Posted by wytiwx
http://i247.photobucket.com/albums/g...psab18b835.jpg
before VID mod, you get to know your prescott VID (VRD 10 or 9).Quote:
Originally Posted by Keny
How do i do that ?Quote:
Originally Posted by wytiwx
A easy way is to post on a Gigabyte P965 or P35 mobo, you can see VID in Vcore setting page. Or you have to measure voltage of 8 pins below after post on I45 (edited from ceemic's photo):Quote:
Originally Posted by Keny
http://www.miivion.com/data/attachme...69madnereh.jpg
I can run the Prescott on a old 775 board and get the vcore from CPUz if that's any easier, or does it need to be measured from them pins, I presume I just measure each pin to GND
Edit: I don't have a P35
I'll move it to the Mods section if you want.Quote:
Originally Posted by wytiwx
Love this thread to bits!
-PB
Vcore from CPU-Z is not so accurate, for example VID 1.2500V and 1.2625V can be showed as the same 1.235V.Quote:
Originally Posted by Keny
Now the way is to measure these 8 pins voltage to GND. About 0.3V means "0", about 1.2V means "1".
Yes, my friend. Thanks for helping :)Quote:
Originally Posted by Don_Dan
Ok measured them out and the results are below, thanks for the help on this BTW.Quote:
Originally Posted by wytiwx
http://i247.photobucket.com/albums/g...ps96671a09.jpg
As your test result, VID [7:0] should be 01110011, Vcore in VRD 10.1 should be 1.3750V, but in VRD 11 this VID code is weird.Quote:
Originally Posted by Keny
What is your Prescott CPU? Is Vcore on old 775 mobo ~1.35V ?
On the old board (some generic msi thing) this pentium 4 540 and the stock vcore is 1.22, it goes up to 1.3* under load, damn p.o.s board fluctuates all over constantly but it settles @ 1.22 on idle
Just to confirm, as per the pin# in the diagram i'm getting 11001110 on the i45
http://i247.photobucket.com/albums/g...ps8eb75159.jpg
Do you think the same vid mod that you done on the cele will work on this p4?
P4 540's VID works with VRD 10.1, the same as Celeron D, so I think it should work if VID code is correct.Quote:
Originally Posted by Keny
Worked perfect:clap:Quote:
Originally Posted by wytiwx
http://i247.photobucket.com/albums/g...ps44bc2e28.jpg
I would thank, but i dont know how to do it on this forum :/
Congrats. :DQuote:
Originally Posted by Keny
I don't know how to thank someone, too. :p:
CPU: Celeron D 347 (batch 3709A270, FSB 800 mod)
Mobo: DFI LP UT ICFX3200-T2R (Vcore mod)
Cooling: LN2
Valid Vcore: 2.00V
Why did I do FSB mod? Because CPU failed to get 800 FSB on air without mod.
Why did I do mobo Vcore mod? Because Vcore 1.90V limit (including Vdroop) without mod.
http://www.miivion.com/data/attachme...hgzg2phzp2.jpg
http://www.miivion.com/data/attachme...1dihsghhhr.jpg
http://www.miivion.com/data/attachme...swrlwl7oh7.png
Valid URL: http://valid.canardpc.com/show_oc.php?id=2732437
Nice results there.
Is there a mod to get the CPU multiplier unlocked as I have got no adjustments at all on my CPU ratio after doing the vid pin mod on the p4 540, it overclocks ok but its limiting as the CPU ratio can't be lowered once the clock reaches a too high speed for the ram devider to cope with
As you can see its greyed out with some sort of error message
http://i247.photobucket.com/albums/g...ps22eab06a.jpg
Quote:
Originally Posted by Keny
I45 mobo can't change P4 CPU ratio natively, it has no matter with VID mod.
By my testing, Gigabyte P965/P35 mobo can change P4 CPU ratio, ASUS P965/P35/P45/X48 can't do that.
Ok thanks, no biggie, its just nice to be able to adjust it for spi runs etc, where ram efficiency is key. Glad I don't need a different board to run these old cpu's as I only have this one 775 board that's any good at overclocking.