Dothan C0's won't go over 2500mhz...

[Lithan]

I've tried THREE 730's. All three capped at 210 FSB @ any multi on my p4p800se. I replaced every single part of the system at least once. I sold the first cpu that hit this wall and buyer found no FSB cap, but a wall @ 2500mhz (210x12, 227x11, etc). Now I've replaced my p4p800se with a p4c800e-d and I am getting exactly the same. No longer stuck at 210, but still stuck at 2500mhz no matter what multi. My B1's NEVER had any problems breaking 2500mhz (except my 715, which couldnt do over 2520 due to FSB cap). They did 2650-2800mhz. And the cpu Im using now can do 2.5ghz UNDERVOLTED to 1.25vcore. But can't go an inch higher. Anyone have any ideas? I've tried with Hynix, Bh5, UTT and TCCD (using now).

Right now Im running Standard, MEM disabled, 2.5-3-3-8-8-AUTO-AUTO, boot @ 201, Mem set to 400mhz,

Are there any other settings I should be looking at?

[vtx_]

are you using the same ct-479? just a thought, maybe that could be causing a problem

and are you trying to boot with these settings or are you hitting the wall with clockgen, because i cant boot anywhere near what i an achieve on clockgen.. so i just boot 201x10 and clockgen to 250x10

[toledo]

are you using the same ct-479? just a thought, maybe that could be causing a problem



I guess he changed the adapter also , and i think this adapter is a very simple device , there is no reason to believe that is causing problems , at least no in my opinion .

[Lithan]

Nope. Replaced that sucker last week.

100% stable 2500. No post/immediate system lockup with clockgen @ 2510.

Note: The exact place it is stable at Varies ~ 100mhz depending on where ct-479's jumpers are. 533 and off = 2400mhz 400 = 2500mhz.

[Lithan]

Anyone running a 730 that they know came out of a dell laptop at 2.6ghz or more? Im suspecting dell chips might have some kind of lock on them.

[cirthix]

sorry about your new dothans. no, dell doesnt get special dothans, intel makes the same dothan for everyone. c0s walling at 210fsb.. maybe its your mobo or ram. if youre using an ati card, maybe it cant handle the agp speed increase

[Lithan]

Nope, It's the cpu's. I'm 100% sure of it now. Maybe it's bad luck with them. But the coincidence is that all three are Dell 9300 pulls. I'm debating whether I'll buy a retail chip to test my theory or just cut my losses and sell off all these parts.

Im on my fourth Mobo, One p4p800se and 3 p4c800e-d. I already listed all the ram I've tried. I've used two different cards. A pci rage and a 6800gt. Also my pci/agp locks just fine. Finally, on the p4c800's It's not a FSB wall, it's a cpu wall @ 2500mhz.

[railer]

Nope, It's the cpu's. I'm 100% sure of it now. Maybe it's bad luck with them. But the coincidence is that all three are Dell 9300 pulls. I'm debating whether I'll buy a retail chip to test my theory or just cut my losses and sell off all these parts.

Im on my fourth Mobo, One p4p800se and 3 p4c800e-d. I already listed all the ram I've tried. I've used two different cards. A pci rage and a 6800gt. Also my pci/agp locks just fine. Finally, on the p4c800's It's not a FSB wall, it's a cpu wall @ 2500mhz.

Mayby all those dell puls are from same batch/factory thats why such bad luck. My 730 does 2.7 on just reg WC 32c idle/40c load. This is where i got my cpu from http://www.xpcgear.com/pentiumm.html from Malay prod date 04/30/05. I cant gurantee you any clock since its also luck but if you can sell that bad clocking sucka on ebay...........

[caater]

i've had here 2 bad dothans.. one 730 was spi1M stable at 2.4ghz but nothing more, the 740 i tried yesterday was spi1Mstable at 2329mhz, 2333 was already no go.. they're both retail cpus..
740 was week 20 philippines. pack date 6/28/05
maybe at some point intel started to speedbin those cpus more aggressively because of imminent release of 780?

[Lithan]

Mayby all those dell puls are from same batch/factory thats why such bad luck. My 730 does 2.7 on just reg WC 32c idle/40c load. This is where i got my cpu from http://www.xpcgear.com/pentiumm.html from Malay prod date 04/30/05. I cant gurantee you any clock since its also luck but if you can sell that bad clocking sucka on ebay...........


That's my theory. Some issue with a single batch where for whatever reason (cache maybe) Merde hits the fan @ 2500mhz exactly. Really far fetched, but I've eliminated the possibility of everything else I can come up with.

[railer]

thats probably right since dell would get a big batch of chips at once. And you probably got all 3 ;) Realy i wouldnt go for 730 if i were you. atleast 750 or 760 if you got the cash. 750 is only $100 more......

[Lithan]

i've had here 2 bad dothans.. one 730 was spi1M stable at 2.4ghz but nothing more, the 740 i tried yesterday was spi1Mstable at 2329mhz, 2333 was already no go.. they're both retail cpus..
740 was week 20 philippines. pack date 6/28/05
maybe at some point intel started to speedbin those cpus more aggressively because of imminent release of 780?


But what's wierd is this chip is AT LEAST as good as my 725 @ stock voltage. Both do ~2500mhz. But the 725 doesn't max until 2800mhz. It's BETTER than my 735 @ stock voltage, and that maxxed at 2750 if I recall right.

[Lithan]

I'll probably be getting a 740 since it's the same price as a 730 practically.

[Lithan]

And of course if that theory is right, now Im scratching my head wondering what kind of error could make three cpu's from the same batch all great at low vcore, yet completely lock up all ~2500mhz. And why does my ct-479 jumper setting change where they max? That last one is really bothering me.

[dqniel]

It's too bad that replacing the CT-479 didn't help you out like we thought it might Lithan :(. I'm stuck at around the same speed as you on my 730. I kind of expected these results though because it's an older chip... from some time in 2004. Maybe I'll sell this on ebay for more than I bought it (say that it's good for overclocking and post some FPS comparisons and people are all over it) and get a 750 :)

I also just bought some OCZ Plat Rev2 1.0 so hopefully my p4p likes TCCD :cool:

What were the dates and manufacture locations on your 3 chips?

[Lithan]

1. Ask whoever JSU sold it to when he was done with it.
2. How do I check?
3. Sorry, not gonna break down my buddies laptop again to look. He got it from dell maybe six months ago.

[caater]

But what's wierd is this chip is AT LEAST as good as my 725 @ stock voltage. Both do ~2500mhz. But the 725 doesn't max until 2800mhz. It's BETTER than my 735 @ stock voltage, and that maxxed at 2750 if I recall right.
well, this bad 730 was ~2.4 ar stock voltage as i recall and more voltage did not help at all.
bad 740 did 2.1 @ stock, 2.15 @ 1.4v, 2.25 @ 1.5v and 2.3 @ 1.6v.

[dqniel]

1. Ask whoever JSU sold it to when he was done with it.
2. How do I check?
3. Sorry, not gonna break down my buddies laptop again to look. He got it from dell maybe six months ago.

I thought it had at least the year on the chip, but maybe i'm imagining things.

by the way, for a good price on a 750 from a reputable seller try http://www.techonweb.com/products/productdetail.aspx?id=B52584&src=PG. pretty good price compared to the near $300 prices i've seen for it at other sites.

[Turbanator]

730 here, does 2520mhz at stock volts and no matter how much more volts i pump in, no more mhz will come out.

My RAM is capable of much more fsb as is the mobo, so it really sucks but after much messing around, I too am sure it's some kind of problem with the 730 chip.

[Turbanator]

PS: My chip was retail, but bought in the UK.

[Kjaks]

Edit: Oh, you allready tried that

[sparkie34]

Sorry you guys are having some trouble. I run 245x11 24/7 with my 730 and it will bench up to 2.8 with a bit more voltage.

I am running

Dothan 730 (CO)
P4P800SE
UTT bh-5
X800XTPE

I purchased my cpu from monarch. Cpu was made sometime in Feburary of this year.

[toledo]

Sorry you guys are having some trouble. I run 245x11 24/7 with my 730 and it will bench up to 2.8 with a bit more voltage.

I am running

Dothan 730 (CO)
P4P800SE
UTT bh-5
X800XTPE

I purchased my cpu from monarch. Cpu was made sometime in Feburary of this year.

How are your UTTs are doing on an Intel platform ? 245/1:1@2-2-2-5 ????


Lithan , where did you buy your cpus ? They are all from the same place ?

[zightx]

My Dothan 730 "sucks" too, 2410mhz(241x10) is max with 1.4v (real), no difference between 400 and 533. :(

Gonna test some cpu burn-in if it helps, soon.

See system in sign.

[sparkie34]

How are your UTTs are doing on an Intel platform ? 245/1:1@2-2-2-5 ????


Lithan , where did you buy your cpus ? They are all from the same place ?


Running the 5:4 divider. :)

[dqniel]

Sorry you guys are having some trouble. I run 245x11 24/7 with my 730 and it will bench up to 2.8 with a bit more voltage.

I am running

Dothan 730 (CO)
P4P800SE
UTT bh-5
X800XTPE

I purchased my cpu from monarch. Cpu was made sometime in Feburary of this year.

well aren't you lucky ;). i think i'll try to get a 750 from monarch if the price is right. good service from that company too.

[Jericho]

I have had 2x 740's, both went right to 2600mhz out of the box.

Surely it can't be the CPU's

[Highland3r]

Burn in and vdroop helped this chip out :)
She's gone from 252*10 (or another equiv speed) to 262*10 winrar-able and it'll sit in windows at 265 now.... Before was instant lockup.... Needs a little voltage boost to 1.45 to help stabilise things (run 1.4125 normally for 2.5)

[Lithan]

All three came out of Dell 9300's. Two I traded for on notebook forums (asked them where they got them). Third is a friends chip I borrowed to test.

I'll try giving it a Monster burnin (100x6@1.6vcore) for a couple days and see if I gain anything at all.

[ibby]

Does burning chips really help ?

[Lithan]

Helped me with the two or three xp's I bothered doing it with
40-120mhz gain if I recall. I've not really kept any chips long enough to worry about doing it since then. Also, since I don't watercool anymore, I can't be putting 2+vcore into chips, (Burnt in my xp's at 2.05, except my dlt3c which wouldnt post above 1.95). 1.8-1.9v maybe on A64's... but I'm too lazy to bother with a vmod just to burnin a dothan, so 1.6v (1.525v actual) for them.

[TL1000S]

Nice initiative this thread "Lithan" :)
I think that the case with "stuck" 730's at 210x12 pretty much is "in sync" with OC-experience with ie. "winnie's" and "venice's"...
What many people tend to be "fooled" about... is those "lucky bastards" that "brags" in all the OC-communites about their awesome clocks..
This *is not* the norm.. we have to face that fact..
As I see it.. most 730's will max out at aout 2500Mhz... (just like mine)..
I cannot afford to buy/shop for many CPU's.. like some really "OC-nuts" does (at least those I know here in Norway)..
I have some other bills to pay/and "a few" other things in life to focus on.. :)
Still.. I think my Dothan performs really well/awesome at 210x12@24x7..

[toledo]

Does burning chips really help ?

I’ve heard that also. Does not sound reasonable for me but I am curious about.

[Turbanator]

Still.. I think my Dothan performs really well/awesome at 210x12@24x7..
yea, I agree, I run 210x12 24/7 and I'm more than happy... but if in this thread we find a solution to push these chips another 100mhz I'll be even happier ;)

[Gautam]

Sorry about your troubles. I've had four Dothans so far, and incidentally, the best one so far happens to be from an i9300...does 250x11 pretty easily on the stock cooler. Probably could pull 50MHz more with a better mount. Three of my procs crossed 2.5 on the stock cooler with ease. The worst one could run PI at a flat 2500 IIRC. It was the only 740 I had, and the most expensive out of the bunch, in spite of its crappiness. These processors are just way too fickle to try and draw any trends. I've seen plenty of 750's turn out worse than a couple of my 730's...Dell pulls, non-Dell pulls, whatever.

[masterofpuppets]

Hmm is the vdroop mod really neccesary? I thought the CT-479 pulled vcore from a small molex?

[Gautam]

Board droops by .05v regardless of load, so it helps a tad yeah.

[Lithan]

I was removing the heatspreader from the processor to sell it and killed it. Very slight scratch on it. Never seen anything so shallow kill a proc before. Definately not through a layer. Worthless %&$&^()*#$*^.

[caater]

Hmm is the vdroop mod really neccesary? I thought the CT-479 pulled vcore from a small molex?
ct-479 supplies power to cpu io circuits and such.. not vcore.
tho modding ct-479 night also help with overclockability..

[vtx_]

my 730 is stable at 2600.. havent tried any higher than that yet.. i like to run it at 2.5 because i get better performance at 250x10 than 260x10 (much worse timings) and it takes more vcore, about 1.45 compared to 1.3875

[Lithan]

Yeah, Maybe I should have put My in front of the title.

Just sold off about 90% of the stuff I had to sell and ordered a 740 Retail. Hopefully it will get here by next monday (next day off when it could possibly get here), but knowing my luck it will arrive tuesday. This is Dothan's last chance. If I hit any wall with this thing, I'm selling all my dothan junk and going for a nice cheap Nforce + Venice 3000+.


Let's see...


$120
$60
$60
$35
$40
$130
$25
$90
$200
$55
$80
$210


Anyone want to say I didn't give it a fair chance?

[Lat]

my 730 pulled from a dell too has an absolutely solid wall at 2350...
:cussing:

[Lithan]

Every chip that fails to pass testing for their higher end chips Intel probably throws in a box labeled "Dell 730's".

[BrnmccO1]

Yikes! And here I am thinking I could pull the 730 out of my Dell 9300, and maybe one of you might want it! But yeah, I mean it's a 1.6 Ghz chip, and most people have gotten 2500 Mhz out of it. That's still a huge overclock, nearly 1000Mhz, I'd like to see a Winnie, or Venice do that!

[skane]

mine also hits a solid wall at 2.5. 2.48 is rock stable, but 2.5 freezes immedialty after setting it with clockgen.
its a retail 740 purchased in germany.

[Inquiz]

My Dothan 730 that was also a dell pull is topping out at 2.5ghz. I need to find out what Stepping it is. I want to phase, but if it wont hit over 2.5 what is the point to phasing the chip?

[Kamerat]

It's sad to hear about theese bad clockers. Any other than owners of 730's and 740's that has experienced a ~2500MHz limit? I wan't a new Pentium M, but not one who clock less than my current.

I bought my 730 back in May. It isn't a very good clocker, but it doesn't have a limit at 2,5GHz, looks like this is a case for newer 730's and 740's. It scales up to 2,79GHz with aircooling and 1,85V, running it daily at 2,75GHz and 1,77V. I'm using an old SLK900 with a Papst 92mm fan as cooling. My poor CPU is also chipped a bit after experimenting with Mach II.

[wwwww]

My Dothan 730 that was also a dell pull is topping out at 2.5ghz. I need to find out what Stepping it is. I want to phase, but if it wont hit over 2.5 what is the point to phasing the chip?

C0

my C0 Retail 740 topped at 2550 and my C0 750 from a Dell topped at 2750

[rayDreamer]

I have a Sonoma 740 and anything over 200x13 it reboots when loading windows. Tried a bit more vcore but no luck..but I have a crappy psu atm..waiting for a Hiper 520W and hoping to get better results then.
My packdate is 08/04/05

[Touche Turtle]

very interesting. I have 2x 730 CPUs and whilst they both top out at around 2.7-2.75GHz (using eist&clockgen). 1.52v (actual) with the standard heatsink. Interestingly, one will boot at 250x10 with no problem whilst the other flatly refuses to post. It seems that despite having similar frequency ceilings, one of the CPUs is more tolerant of the cold-boot problem than the other.

[Jojo1971]

i guess i was lucky, i bought a "CO" 730 (pulled from a laptop)from OC forum for $125. it is prime stable at 2.6 ghz (12 x 217fsb)... its sweet spot is 217 fsb/ 1.525 vcore (bios) /5:4 divider... at full load, the vcore drops to 1.5.... using <1.45 or >1.55 vcore will result to crash right away...

im using p4c800 deluxe with the latest beta bios v.1021.005... it has settings for the multiplier BUT they dont actually work.. so im stuck with the x12 multiplier...

[16floz470ml]

i guess i was lucky, i bought a "CO" 730 (pulled from a laptop)from OC forum for $125. it is prime stable at 2.6 ghz (12 x 217fsb)... its sweet spot is 217 fsb/ 1.525 vcore (bios) /5:4 divider... at full load, the vcore drops to 1.5.... using <1.45 or >1.55 vcore will result to crash right away...

im using p4c800 deluxe with the latest beta bios v.1021.005... it has settings for the multiplier BUT they dont actually work.. so im stuck with the x12 multiplier...

How does that make you lucky? If I only get 217 I will be pissed.

[Jojo1971]

How does that make you lucky? If I only get 217 I will be pissed.

217 fsb is due to my mobo's limitation ...i cant use any other multiplier but x12...

max prime stable of the processor is 2.6..isn't that good enough for an aircooled 730? shouldnt i feel happy and lucky about that?

isnt the thread about processor not mobo? hello? :slap:

[jrw]

OMG Lithan,

I send out all the warmth and comfort I can muster. You definately put up a fight there.

What will be your next project?

[MacClipper]

im using p4c800 deluxe with the latest beta bios v.1021.005... it has settings for the multiplier BUT they dont actually work.. so im stuck with the x12 multiplier...

Sorry for dragging this out of the cobwebs but from your sig, I see that you are still using the same mobo. I just got my Dothan rig cheap - the same mobo (non-E) and 1021.005 beta BIOS, have no problem changing the multiplier (so far except 8 which won't POST).

http://img251.imageshack.us/my.php?image=pm740275014v254463hjb3.jpg

Did Asus ever get around to releasing a final BIOS for this P4C800 non-E Dlx board?

[Quicksilverta]

Im running at 2.65 24/7 with my P4GPL-X with a ct-479 and 730 out of dell 9300. Not sure what to tell you. But I don't think it has anything to do with dell.

[Lithan]

Wow, memories... Anyone who cares... my tenacity eventually paid off with possibly the best clocking dothan ever. (a 740 I think was the model number). I was 100% stable at 2.933 on silent air in a nearly 100*F room. The WR I saw at the time was 32m stable @ slightly over 3ghz with a loud fan and a car a/c unit blowing onto the mobo. But I didn't have the time to pursue the WR and sold the chip for a slight premium as my A64 rig wouldn't bring as much $$$ back, and if I recall, the dothan rig wasnt too friendly with my ram so benching wouldnt have been anything special.

It was a nice rig honestly, but I moved to pci-e around the same time and wasnt willing/able to jump through the hoops required to import that PCI-E dothan-capable mobo.

JRW, to answer your question (a little late). I upgraded to a top of the line (at the time) Graphics, and nf4 board. Tried a few Single core opterons and eventually settled on building a silent rig of a 146 @ 2675 @ 1.3vcore with standard clocked 7800gtx and 2gigs generic pc3200 @ pc3700 3-3-3. With the exception of a few tweaks recently, that rig was mostly unchanged until now. I've got a conroe setup inbound at the moment.

Around the time of this thread I was very spendhappy... buying and selling cpus as fast as I could play with them. Probably burnt through a couple thousand dollars in youthful foolishness, overclocking for the sheer entertainment value of it. Wont be able to do that again anytime soon. And to be fair, the dothan was probably my biggest success, though in honesty I always worried how stable it would actually be in practice... something about the ct-479 just seemed untrustworthy to me.


Quicksilverta, I've seen a few reports of decent clocking dell chips, but in my and several other's experience: retail chips clocked heads and tails above dell pulls. Personally I owned 3 or 4 dell chips and 1 retail one.

[hey]

i have the same problem,, i was using celeron m 1.5 for a while it does 2.48 prime stabil but more than 10mhz it freeze up ,,than i bought pentium m 1.7/400 dothan now it is prime stabil at 2.56 but no more than 10mhz it again freeze ..my board is p4p800se ,,i also moded ct-479 but nothing changed,,also nothşingh changes for 400 of 533 buses..:(

[Miwo]

I went through 3 Dothan Chips, all clocking in around the same speeds

all chips were cooled by a 7700AlCu
Retail 740 - 2.6 GHz
Retail 730 - 2.56GHz
Dell Pull 730 - 2.65GHz

All in all, I really did like my Dothan system, but for the same reasons as Lithan (PCI-E / Import / Ebay P4GPL-X or P4GD1), I sold back my Dothan system and was an early adopter of Yonah. Been pretty happy with it, though I may upgrade to Conroe very soon. I want to see how the RD600 does as well as the recent commotion with Xeon chips.