everything is relative ;)
and everyone has his own exigence :stick:
Printable View
everything is relative ;)
and everyone has his own exigence :stick:
i did the comparison between both before making my final choice...
I don't know the Sanyo Denki...
Some great news not just for me but for the whole OC community that someday might play with Asus MB and Dothan. There is a NEW way and very eazy way of doing P4p800se vcore mod. Any newb with soldering iron can do it. I wont take credit for this one. The credit goes to Russian man that fixis TV and radios for 30 years, I think he was fixing them while they still had lamps as transistors . He never even seen a MB before i think but was able to figure out what some MB vmoders here did not. And it took him less then 5 min by looking at the pcb thru magnifying glass. The older vmod required to solder a wire to #8 pin on the chip. As i stated before it's almost impossible to do without superb soldering skills and good equpment.
It all happen when i drove to the Radio Repair shop. When i asked him to soldre a wire to the pin#8, he sayd ok il try but i cant gurantee you anything. I was like WTFC i dont want to loose my MB.
So he looked at it for 2 min and said that pin#8 has a direct connection to one of the resistor below this chip and there for i dont need to solder a wire to the pin since the voltage resistance can be change directly from this resistor. At first i did not belive him since i knew that alot of Vmoders from XS has been looking for a way to Vmod this board.
So we tested with voltmeeter and it turnd out that there is a direct connection between two. Then he solder the wire to the ressistor , i paid the owner $10 and gave the guy $5 tip just for finding this stuff out. Now at any givin time i can Vcore mod my MB cause it easy to solder a wire to resistor it frkn huge compare to the pin.
Take a look at this pic. Vcore mod done eazy;)
http://www.xtremesystems.org/forums/...id=34876&stc=1
http://www.xtremesystems.org/forums/...id=34877&stc=1
I was just lokking at the Asus Supported Boards List and read this in the Q&A's
3. May I still enjoy the original advanced overclock and others ASUS special features of my MB if the CT-479 is installed?
A: Definitely yes ! That's why we provide CT-479 Upgrade Kit for Intel Pentium M CPU on ASUS MB (Note: the only exception is the CPU voltage, which cannot be adjusted through BIOS because the CPU power comes from the CT-479, not from the motherboard.)
Does this mean that all the vcore changes in the bois are for show?
I'm not sure extra Vcore beyond the 1.6 from the bios will help that much. Seems like these P-Ms benefit more from sub-ambient cooling than voltage after a point.
Had A play with a 2gig 400 bus Dothan, a phase unit and an old P4P800E I had, the wifey now has my P4C800 and 1.6 533 unit ;)
182fsbx16 under phase was the best i could do.
http://www.xtremesystems.org/forums/...id=34893&stc=1
Ram is old OCZ EB at 2.5-2-2-5, vcore was 1.45V vdimm 2.85, 1.6vagp
hi bigtoe, remember you in the past with the p4b533 trick (abxzone)....
Quote:
Originally Posted by railer
As a "newbee" to this forum and to this subject... :)
I am the proud owner of a system based on P4800 SE, Dothan(Sonoma) 730, CT-479.
This thread/guide states VCore -> 1.6 for P4800SE..
My system/Bios.. also SpeedFan/EverestHome reports a VCore of 1.58 (Bios 1008).. I have also tried Bios 1009.004.. which gives the option of setting MP and VCore from 1.500 to 1.600 in 0.010 increments (if I remember correctly).
EIST reports max VCOre of 1.3 (or that about).. so does also CPU-Z... Does this mean that my system/board/BIOS runs at default VCore for my P-M 730 ? Or does the board really overvolt the CPU to 1.58 as "stock"?
Currently my system max'es out at 12x218=2616.. which is more than OK.
But is there any gains in a VCore mod? Is the "usual" pin-mod (in the socket) a way to increase the OC potential for this board/system?
Is the P4P800 SE a good board for CT-479? For me it seems that most "clockers" uses P4C800 (i875) which make me think that perhaps P4P800 SE was not such a good choise as I first thought...
Many questions... any answers? :)
Ok guys. I need some help.
System is
730 Dothan
P4C800-E Deluxe
512mb bh-5
I just recieved this board today. I booted and loaded windows with a P4 2.66 cpu with no problems what so ever. I updated to the beta bios on the first page of this thread and then shut down the pc, cleared cmos, installed the ct-479 and 730, connected the power to the ct-479 and set the jumpers on it to 533fsb. I then turn the system back on and then NOTHING. Won't boot into bios, just black screen. I then reinstalled the 2.66 P4 and went to the asus website and tried another ct-479 friendly bios. Reinstalled the ct-479 and 730 and nothing, same thing.
Can someone please help/advise me on what to try to get this thing going.
Thanks
ok, just a few basics:Quote:
Originally Posted by sparkie34
1) Try to boot with 1x stick ram.
2) Make sure power is connected to ct479
3) Make sure P-M is inserted into socket AND locking screw is turned 180 degrees til it stops!!
4) Clr CMOS...
5) Move ram to different slots
6) Video card completely inserted?
Hmmm.... I doubt if it's a bad 730!!
C
Ok, I went down the list and still no boot. I ordered another ct-479 because I don't think the 730 is bad either. Thanks for helping charlie.
This is the cpu I bought.
http://www.mwave.com/mwave/viewspec....iteria=BA21378
:shrug:
Sparkie34:
The problem may also be a incompatible/"defect" mainboard.
Had similar problems with my first P4P800 SE (bought as "demo" from a Webshop). Would boot with a "ordinary" CPU (Willamette) but did not always boot/function stable with CT-479 and M-730.
Ordered a new P4P800 SE (returned the old/refunded) which works flawlessly.
i feel your pain sparkie34....this is my history:
1) as i had laying around my old and trusty p4c800-e deluxe i tried about two months ago with one m750 with ct-479....first day with asus stock heatsink all went great....then i prepared insulation to mount next day custom phase change...and then nothing.....system starts but no signal on screen.... :confused: i unmounted phase change to check for condensation (nothing at all...) or cracked core (again nothing....appeared to be in perfect condition...)...put in some spare 478 processors to test motherboard.....and all was running perfect....put m750+ct479 in and nothing...so it seemed i somewhat broke ct-479 or m750... :(
2) i borrowed a p4p800se from a friend and flashed it to support dothan and tried my "dead combo" just for curiosity and again it didn't work....so to another step....
3) i bought another asus ct479 adapter to check if m750 was dead or not....tried it on my board and on friend's board and nothing...dead m750 it seemed.... :(
4) i got two weeks ago one m770 so i could finally enjoy the dothan....tried it on my second and almost new ct-479 with stock asus heatsink...and.... :eek: it didn't work too....!!!!...tried it with my old ct-479 and it didn't work neither....tried both adapters on my friend's p4p800se and didn't work....so i went "what the **** mode on".... :mad: two boards...two adapters....two dothans and i still don't know what the hell is happening....lololol 478 goes perfect...479 just went well the first day...since then is a no go with any combination....well maybe my m770 was bad from the beginning but it is weird....and whatever is happening i couldn't have worst luck.... :confused:
anyway i'm going to test dothan yes or yes.... ;)
*note: of course i tried flashing bios (with /n /pbnc switches) a A LOT of times....floppy drive never worked so hard.... :D
My history so far.
1. Buy a 715... find out the b1's can't go much over 160-180fsb
2. Trade/Buy a 730... It gets stuck at 210fsb
3. Buy a 735 to trade for another 730 or a 740 It's pretty cool. Good to about 2660 on stock CT479 cooler with 1.49vcore But FSB is ass so I go ahead with the trade...
4. 730 which should arrive in a week or so... hopefully will do 300x10 on air @ 1.5vcore with my 7000alcu 1:1 with my tccd ;) Hey don't burst my bubble.
guys, my combo hasn't arrive but i'm already scarred about having big troubles with it :confused:
what is the best combo these days?
Dothan with asus p4C800 and asus convertor
or
Dothan with asus p4gd1 ?
greetz
p4c800 will be faster clock per clock but with p4gd1 you have the possibility of using pci-express if you want a new graphics card....
thx!
and what is better a banias 400fsb cpu or a dothan 533 cpu?
Quote:
Originally Posted by evil_raver
That's not what I wanted to hear. :( I have another ct-479 on the way along with another board. This time around I'll try the p4p800se. We'll see what happens. Thanks for the input guys.
I think that the odds are pretty good for you. I have 4 CT-479's, 6 Dothans and 6 variants of P4P800's and every one has booted without issues.Quote:
Originally Posted by sparkie34
Quote:
Originally Posted by koensa
Dothan Stomps all over Banias and doesn't stop to ask its name.
The general look of things here is Majority of ppl have hardly any setup problems, so you should be o.k
Quote:
Originally Posted by c0V3Ro
don't worry mates....;) as they said most of the people don't have any problem with them...i myself didn't have a single problem the first day running it until i somewhat killed my 750 when mounting the phase change... :slap:Quote:
Originally Posted by sparkie34
i think it's me that just got very bad luck with my 770 that came bad from the beginning....i'm going to try a cheap 730 very soon so i hope i can see what happened.... :p: the third will be the good one....and then the fourth will be even better with 780....:D
@koensa: dothan will be a lot better than banias.... and 400fsb dothan vs 533fsb dothan....533fsb ones will let you rise your fsb a lot more.... :)
good luck with your dothan-powered machines...!!!! :toast:
that is the only one that works, then there were a beta 1023 bios, but they have bot changed anything from beta time, just renamed a file, inside it is still that good 1023 beta. so you are only with this bios... 7x does not works and gets you 6x, 8x does not boot at all - so it DOES NOT work. then other are fine and the Vcore is fine, just undervolting constantly at about 0.05V