Dothan @ CT-479 - howto and fixes.

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12-11-2005, 09:45 PM
lowfat

for the easy u-wire vcore mod. Do you stick the wire in the CT-479 or on the motherboard itself?
pic found here http://www.xtremesystems.org/forums/...id=31255&stc=1
12-12-2005, 04:35 AM
bhoward

On the CT-479
12-12-2005, 05:15 AM
lowfat

Quote:

Originally Posted by bhoward

On the CT-479

k thanks.
12-12-2005, 09:18 PM
wwwww

Haven't got a dothan rig atm (other than my laptop) but just got a new cooler for my p4gd1+730 rig that's comin'.

http://img209.imageshack.us/img209/2...ecooler0tj.jpg

Basically a Thermalright Xeon cooler with the mounting stuff of the stock cooler. Seems like it'll fit perfectly as long as you move the external power connector. P4GD1 should arrive tommorow or the next day. Will test if it fits then, don't see why it wouldn't though. And will test performance as well :)
12-17-2005, 03:35 PM
justthinking

Got my 2nd P-M 740 (retail box) and it won't boot at 200x13 even w/ 1.5v,
however it boots at 200x12 w/o any problem w/ voltage all the way down to 1.4v...

My other P-M 740 is an oem unit and it runs rock solid at 200x13 w/ 1.475v bios setting.

So frustrated, this new p-m 740 even has a later batch code, yet it just won't boot at 200x13 or even 199x13...
12-17-2005, 03:38 PM
skane

there are newer dothans that just hit a wall at some frequency, mine for example does 2.48 without problems at 2.4v in bios, but it just wont do 2.5. it all depends on the luck of the draw, and im afraid you got unlucky.
12-17-2005, 05:34 PM
justthinking

I am testing stability now running at 200x12@1.4v using 3dmark2001se looping infinte...hopefully it will at least run stable at 2.4GHz...

BTW, the batch code is 7514B114 and pack date is 04/28/2005
12-17-2005, 11:33 PM
olfen

same problem here with my 740. Runs fine 13x198 with stockcooler, changed to a better one this weekend the temps went down 10-15c under load I can now bench up to 2.7ghz but I can't get it stable for more than a couple of hours in prime @13x200
12-18-2005, 11:53 PM
justthinking

This retail 740 is stable at 200x12 w/ default voltage, but it seems to hit a wall regardless of setting or voltage at around 2.46GHz.

I could boot up w/ o any problem at 189x13 or 205x12, however, if I increase the speed to 190x13 or 206x12, the system will freeze a few seconds after boot up.

Increase FSB by even just 1MHz to 190x13 or 206x12, the system simply refuse to boot up. Increase voltage to 1.5v still same result.

I just remembered that other P-M 730 tested earlier this month shows similar result, it could run 200x12 at 1.375v stable but I can't get it to stabilize at 250x10. Both chips are made in Philippines w/ date code around 14th week of 2005.
12-19-2005, 02:14 AM
olfen

I have a problem here, my max stable oc didn't increase one single mhz when changing from stockcooler to an thermalright sp97, the temps dropped 10-15c and max bench increased but I cant get i stable @200x13 no matter what voltage I set. I'm running an p4gplx, anyone with an solution?
12-19-2005, 03:27 AM
Neova

Increase your VAGP and see if that helps. You may need to do a VAGP mod.
12-19-2005, 04:05 AM
lawrywild

Quote:

Originally Posted by Neova

Increase your VAGP and see if that helps. You may need to do a VAGP mod.

that won't help overall overclocks, it "MIGHT" help getting to a higher fsb tho..
12-19-2005, 01:04 PM
TxAg

I have seen a number of people on these boards talking about getting their 2nd and 3rd CT-479 adapters. Are some adapters faster than others? If some 730's can hit 2.9GHz and others can't do 2.4GHz, would they same hold true for the adapters?

I ask because I have tried 3 CPU's; a 730, 740 and 750. Oddly, they all have about the same max OC regardless of multi or FSB settings. Something seems to be holding them back. I read Hipro's guide to modding the CT-479 but that seems to help FSB speeds more than max OC.

So, to those of you with multiple adapters, will a CPU clock higher on one than another?
12-19-2005, 11:47 PM
hipro5

Quote:

Originally Posted by TxAg

I have seen a number of people on these boards talking about getting their 2nd and 3rd CT-479 adapters. Are some adapters faster than others? If some 730's can hit 2.9GHz and others can't do 2.4GHz, would they same hold true for the adapters?

I ask because I have tried 3 CPU's; a 730, 740 and 750. Oddly, they all have about the same max OC regardless of multi or FSB settings. Something seems to be holding them back. I read Hipro's guide to modding the CT-479 but that seems to help FSB speeds more than max OC.

So, to those of you with multiple adapters, will a CPU clock higher on one than another?

I own 4 adapters........None of them has taken my CPU's higher no matter what.......It's about the CPU(well almost) on how to react.......But I've tested a 730, 740, and 3 x 770 CPUs and the worst of them was at 2750MHz..........How come and you cannot go higher?......Don't feed them above 1.55 - 1.5885VCore.......Some (rare) pieces of them, do listen above that but 95% do nothing above 1.575VCore.......They also makes things worse over 1.575VCore.....
12-20-2005, 02:53 AM
lawrywild

Quote:

Originally Posted by TxAg

I have seen a number of people on these boards talking about getting their 2nd and 3rd CT-479 adapters. Are some adapters faster than others? If some 730's can hit 2.9GHz and others can't do 2.4GHz, would they same hold true for the adapters?

I ask because I have tried 3 CPU's; a 730, 740 and 750. Oddly, they all have about the same max OC regardless of multi or FSB settings. Something seems to be holding them back. I read Hipro's guide to modding the CT-479 but that seems to help FSB speeds more than max OC.

So, to those of you with multiple adapters, will a CPU clock higher on one than another?

same here mate, my 730 and 750 were doing exactly the same, thought it was ct-479 limiting me, did the mods, didn't help..

i got a 760 in the post just this minute, gonna stick it in later and give it a whirl :)

edit: holy moly, my day has just got sooo much better, what a sweeet (early) xmas present..

I just booting into windows @ 200x14 (haven't even tried higher yet) and windows is running stable, and f@h is running nice and smooth :D

YES! come back to me 3dmark01 world record!!!!

edit2: 2880 @ 1.575v looks very stable to me so far :D
12-20-2005, 07:04 AM
tozas1979

Quote:

Originally Posted by Banzai

Yes it will get you closer to eternal enlightenment.

Ryan

lol thank you!
12-20-2005, 07:07 AM
tozas1979

Quote:

Originally Posted by justthinking

How fast are you running your P4? (FSB and Multipier)
I think you will see biggest performance boost if you simply get a new hdd.
Get a 7200RPM HDD w/ 8mb cache and you should get 10% - 15% performance increase.

my P4 is running at 14*229
mems at 1:1

Maybe i´ll do that and buy a new HDD.
thanks!
12-20-2005, 10:17 AM
Gautam

Quote:

Originally Posted by hipro5

I own 4 adapters........None of them has taken my CPU's higher no matter what.......It's about the CPU(well almost) on how to react.......But I've tested a 730, 740, and 3 x 770 CPUs and the worst of them was at 2750MHz..........How come and you cannot go higher?......Don't feed them above 1.55 - 1.5885VCore.......Some (rare) pieces of them, do listen above that but 95% do nothing above 1.575VCore.......They also makes things worse over 1.575VCore.....

I'm guessing you've never even tried a mobo without a vdroop mod, but would you say its worth the time or not? Already scratching the vcore mod off my list.
12-20-2005, 10:25 AM
hipro5

Quote:

Originally Posted by Gautam

I'm guessing you've never even tried a mobo without a vdroop mod, but would you say its worth the time or not? Already scratching the vcore mod off my list.

Vdroop worths every penny....:D
12-20-2005, 12:22 PM
TxAg

Quote:

Originally Posted by hipro5

Vdroop worths every penny....:D

But, not nessecary on the 915 motherboards, correct?
12-20-2005, 12:41 PM
cirthix

Quote:

Originally Posted by TxAg

But, not nessecary on the 915 motherboards, correct?

my P4GD1 idles at 1.625v and droops to 1.61v under load (1.5375v set in bios), so i dont think a vdroop mod is necessary.
12-20-2005, 12:49 PM
hipro5

Quote:

Originally Posted by cirthix

my P4GD1 idles at 1.625v and droops to 1.61v under load (1.5375v set in bios), so i dont think a vdroop mod is necessary.

So much way off?....I'll check it out as soon as I get mine.....
12-20-2005, 01:08 PM
yotomeczek

Guys - question >> is it possible that because of CT-479 mod (all) I can't chandge Vcore from bios ?? Mobo is P4GPL-X ??

So far : (not great clocker - CT cooler max 2550MHz :/)

cooling :p:
http://img353.imageshack.us/img353/7349/wc7ax.jpg

My best 1M
http://img486.imageshack.us/img486/7595/1m26sy3kn.jpg

Poor super PI16M (why so poor ??)
http://img486.imageshack.us/img486/9681/16m12my1wk.jpg

My best 2001 http://service.futuremark.com/compare?2k1=8830510

AM3 (CPU 2,74GHz X800GTo @ XT 650/575)
http://img486.imageshack.us/img486/5...650575y5cw.jpg
12-20-2005, 08:41 PM
16floz470ml

I have your board and cpu. I can overclock just a little more than you with air cooling. Water cooling is useless for you. You will have to be in the -C to get any more of an oc. You seem to have way too much voltage also. I set the bios to 1.5 and asus probe reads 1.6. I am not sure which is correct.
12-21-2005, 03:56 AM
TL1000S

Have P4GPL-X + 740M and a P5GDC-Pro.. i915PL and i915P rescpectively..
It seems that these boards/chipsets overvolts quite a bit..
If you set VCore to a value.. "actual" value usually is 0.05 to 0.075 more read from AsusProbe (or any other utility "probin" Bios sensors).
Must agree with previous "speaker".. It is of little use to increase VCore (actual) over 1.55/1.60 unless we're "talking" sub-zero cooling.. :)

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