Dothan @ CT-479 - howto and fixes.

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11-08-2005, 04:38 AM
JeanY

Hi,

I just post a screen for a friend, F@NOo on HFR ;)
P4C800e-dlx VAGP 1.8V
PM 740 watercooled @1.6V
X800XT@620/600
2x512 Adata BH5 w310
DDR Booster
Hiper type R480

http://img451.imageshack.us/img451/1427/fnoo7xu.th.jpg
11-08-2005, 05:00 AM
hipro5

Quote:

Originally Posted by Stigggeh

does anyone know what rail the ct479 draws its power from ? +5v or +12v ?

It draws most of it's power via 12Volts.....and stabilizes it at 3.3Volts ....
11-08-2005, 05:05 AM
wwwww

Quote:

Originally Posted by Stigggeh

does anyone know what rail the ct479 draws its power from ? +5v or +12v ?

I can't boot with any of them not plugged in so prob all.

Quote:

Originally Posted by hipro5

I ALWAYS bench at over 72MHz AGP........More stability and overclockability............. ;)

Really? I only need to up my AGP/PCI rates with PAT on above 300MHz FSB.
11-08-2005, 12:03 PM
lawrywild

Quote:

Originally Posted by hipro5

I ALWAYS bench at over 72MHz AGP........More stability and overclockability............. ;)

hmm sounds interesting..

might have to try that.. :rolleyes:
11-08-2005, 01:47 PM
ociFalcon

guys mounted WC on CPU today,... now i dont see any improvements
i made it to get 2800 mhz primestable with 1.52-1.56v, but i cant even run pi 1mb @2830mhz, it just freezes. i talked to some other dothan OCers, they always get reboots or errors in pi/prime if CPU isnt stable. my dothan only has to options : stable or not. if 1mb pi is stable, prime will be, too. i just dunno whats up with this cpu . 2700mhz are prime stable with 1.43v.... ://
11-08-2005, 02:02 PM
lawrywild

Quote:

Originally Posted by ociFalcon

guys mounted WC on CPU today,... now i dont see any improvements
i made it to get 2800 mhz primestable with 1.52-1.56v, but i cant even run pi 1mb @2830mhz, it just freezes. i talked to some other dothan OCers, they always get reboots or errors in pi/prime if CPU isnt stable. my dothan only has to options : stable or not. if 1mb pi is stable, prime will be, too. i just dunno whats up with this cpu . 2700mhz are prime stable with 1.43v.... ://

well it's well known that water doesnt make much diff on dothan since its only 27w..

so i doubt itll be better than on air tbh
11-08-2005, 04:43 PM
fordf250

Quote:

Originally Posted by hipro5

You are joking right?.....2880MHz @ 25.6 sec!..... :)

http://www.thelab.gr/images/Hipro5/D...-Pi_25_png.png

2 x 256MB BH-6 full PAT...... :)

Hi Hipro, I have some old BH-6, I will try to go lower, what Vdimm is that at, there are no mods to my mb yet and the ocz booster doesnt work with the 800-e dlx.

I will try the pci freq change also as this ram will run 6-3-3-2 at 255fsb on 2.8V.
11-08-2005, 09:43 PM
hipro5

Quote:

Originally Posted by fordf250

Hi Hipro, I have some old BH-6, I will try to go lower, what Vdimm is that at, there are no mods to my mb yet and the ocz booster doesnt work with the 800-e dlx.

I will try the pci freq change also as this ram will run 6-3-3-2 at 255fsb on 2.8V.

Vdimm was 3.2Volts @ up to 249MHz
You should do at least Vdroop and VAGP mods....... :)
11-09-2005, 01:31 AM
zbogorgon

bbooster works with p4c800-E del
11-09-2005, 01:44 AM
cirthix

ociFalcon, your cpu seems a lot like my old one :). 2730stable at low voltages but 2800 and up arent.

these chips all seem to have a narrow range of semi-stability and abruptly seem to change from stable to not even posting.
11-09-2005, 07:58 AM
TxAg

I am stuck at 2568 with my OEM 730. By lowering the multi, I can get my memory to work at FSB speeds in excess of 275MHz so I know that is not the problem. I have tried my P4C800ed and my P4P800ed so thats not the issue. My Dothan just hit a wall at 214x12. Perfectly stable at 214 but wont post at 215 no matter what voltage I give it. Well all of this is nothing new and has been well documented thus far.

My question is this, should I try for a new processor or is 2568MHz an average clock. Looking at wwwww's database, I seem to be on the low end.

So if I do buy a new CPU, should I go for the 740 or 730? They both seem to be about $200. My inital instinct is to go for the 740 but wwwww's database seems to show them clocking lower than the 730's. My P4C800 allows you to change the multi in the BIOS so booting at >200 shouldn't be an issue. What do you guys think?
11-09-2005, 08:40 AM
TL1000S

I have posted about this before, but it won't hurt to repeat..
It seems that many new "Dothan-fans" experience the same disappointing results..
I tried with a 740M which did no better than my 730M..
But are stable at 213x12.. or any other combo (FSBxMP) below 2600Mhz.
1 - one - Hz (FSB) over that and it shuts down during benchmarks.
Many of us seem to take the happy users posting about 2800++ Mhz Dothan ("on stock air!") as the norm..
Also check "Lithan's" many frustrated posts.. and log of fairly expencive purchases (CPU's) in his "quest" for a high clocking Dothan.. :)
I "gave up" after to tries.. but I'm still more than satisfied with the performance of my DOthan's..
11-11-2005, 04:30 AM
cirthix

TL1000S, that's why i buy my cpus used hehe :P
11-11-2005, 06:23 AM
bnice7

Quote:

Originally Posted by Banzai

Flashed to 1022.003 and still no vCore change avaliable and still defaulting to ~1.1v in BIOS.

I'm starting to wonder if my Banias chip or the CT479 is borked ?

Will try some other mods later on. But atm, it's running at 600Mhz {6*100} with no problems.

Ryan

I had a similar problem -- Check your power connectors. My CT-479 had a lose power connection cable and it pushed in one of the four contacts of the connector going to the power supply, so only 3 of the 4 wires were making contact.
11-11-2005, 06:27 AM
Banzai

You mean the 4 wire floppy connector ?

Ryan
11-11-2005, 07:02 AM
bcn

yeah, he means floppy :D
11-11-2005, 02:52 PM
nightanole

Am i doing something wrong here? I gota p4c800-e delux and a 740. Bios is 1024. CPu voltage is 1.6v. It seems that i can only do 166 x13 for 2.158ghz. Im not stable at 2.2 so i cant post half the time at 200x11. I can do 200 x10 but for some reason my corsair xms ram doesnt like to run at stock timings even at 2.85v. Do i gota enable or disable something to get what everyone else in the world is getting? ive tryed standard and turbo setting, with no hope other then turbo works when my pc3200 ram is running at 166 bus 1:1.
11-11-2005, 03:07 PM
bcn

relax memory timings, get the voltage lower, for 2158Mhz you should not need 1.6V
what is your graphic card? if it is ATI, then you should boot at 201FSB and more cause if less, then agp/pci lock does not work.

try with any p4 with 800bus and see if it is nstable, it might be your mobo, i had one of these mobos, that could not do its nominal 200FSB - i had to by the other and the issue solved with the same components. try memory in other pc if you can to be sure mem is OK, and according to the simptoms I would strongly bet it is mobo problem. try booting at 210x9 for example with relaxed timings and see what happens. cheers.
11-11-2005, 08:44 PM
wwwww

wwwww cooling:

http://img377.imageshack.us/img377/1295/xp6ud.jpg

Athlon XP stock cooler held down by a 60mm fan with the zalman mounts.

38C idle
52C load
at 2.75Ghz 1.6V

in 32C ambients

Quote:

Originally Posted by nightanole

Am i doing something wrong here? I gota p4c800-e delux and a 740. Bios is 1024. CPu voltage is 1.6v. It seems that i can only do 166 x13 for 2.158ghz. Im not stable at 2.2 so i cant post half the time at 200x11. I can do 200 x10 but for some reason my corsair xms ram doesnt like to run at stock timings even at 2.85v. Do i gota enable or disable something to get what everyone else in the world is getting? ive tryed standard and turbo setting, with no hope other then turbo works when my pc3200 ram is running at 166 bus 1:1.

When booting to 200FSB, set Memory Acceleration to Auto, when 201FSB, set to Enabled. Also set your Vcore to 1.45V, 1.6V is too high.
11-11-2005, 10:17 PM
Banzai

Tried reseating the floppy connector to no evail {sp?!}. Still only giving me ~1.1vCore. I might remove the whole board and :banana::banana::banana::banana: from the case when I get a chance next week and have a look for cut traces and reaseat everything.

Ryan
11-12-2005, 12:18 AM
wwwww

Quote:

Originally Posted by Banzai

Tried reseating the floppy connector to no evail {sp?!}. Still only giving me ~1.1vCore. I might remove the whole board and :banana::banana::banana::banana: from the case when I get a chance next week and have a look for cut traces and reaseat everything.

Ryan

Unless you're reporting this problem on OCAU as well, this problem isn't localized.
11-12-2005, 08:47 PM
Banzai

Quote:

Originally Posted by wwwww

Unless you're reporting this problem on OCAU as well, this problem isn't localized.

Eh ?

Ryan
11-13-2005, 04:40 AM
Mayk-Freak

Where are the V-Core measuring point at the Asus P4GD1 and Asus P4GPL-X?
11-13-2005, 04:58 AM
wwwww

Quote:

Originally Posted by Banzai

Eh ?

Ryan

As in there's someone on OCAU who has the exact same prob, chip boots only to 1.1V and had to boot at 600MHz for stability (hehe i can do stock speeds at 1.1V :P)
11-13-2005, 05:28 AM
Banzai

Banzai = Uberbanzai ?

It's me haha. No one replied to my thread on OCAU.

Going to pull everything out on Tuesday and give a going over. Then if that fails, buy a new CT479.

Ryan

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