Dothan overclocking thread

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Originally Posted by charlie

the sheer size of the thread scares me ;)
What's the verdict on the new Aopen 915gMe board??????

C

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from what I read on madshrimps, vegeta's board is already dead and the results he got before it blew weren't good, he suspects no locks and it clocked worse then the i855 aopen.

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Originally Posted by conrad.maranan

Those are 8X AGP, right? Am I correct assuming that there are no PCIe boards for this CPU?

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afaik, asus plans to support the
P4GD1 in the future, maybe there are already beta biosses for it. best check the german asus ftp for latest biosses :)

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Originally Posted by DrJay

I seem to remember people getting better FSB overclocks with the P4Ps than the P4Cs.....
However, super high(270+) FSB probably isn't a concern with a P-M setup.


Jay

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If I recall correctly, in the reviews I've read with the adapter they stranded at about ~220 fsb. they never upped the Vagp wich really helped getting higher fsb. these dothans need higher Vagp at an earlier stage then "regular" (P4) chips do.

if i go dothan, it will have to prove itself better than venice, turion, and san deigo to do so, i'd get the p4p800 se, simply because its much cheaper. it may be missing some useless frills, but if it does 200fsb, its good enough for any dothan (but this IS xs, and we know it will be oc'd more). i just think that we will hit the chips fsb limit much earlier than the motherboards, and the dothans work VERY well with low fsbs anyway. it would be better to spend the 40 dollar difference on something else, maybe a 120mm to 80mm adapter, 120mm fans, and a fan controller or something similar to make it quieter. or on the video card.

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Originally Posted by kristos

afaik, asus plans to support the
P4GD1 in the future, maybe there are already beta biosses for it. best check the german asus ftp for latest biosses :)

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Latest beta BIOS for the P4GD1 is dated April 7th, but I didn't find any notes for the BIOS. It looks like a nice board for the Dothan and it's not much more expensive than the P4P800 SE, just 3% more here in Norway. It got nice features such as Azalia audio and PCI-E. It doesn't support 400 MHz FSB CPU's, but I don't think that it would be a problem for us overclockers and the adaptor can be forced into running 533 MHz FSB.

Are these two processors of the same stepping but just different bus speeds, and how do you tell the difference?

BX80536GE1600F
BXM80536GC1600F

What we need is a bios for the P4p800E, this board has a nice upclock ratio of 500 and 533 with the 800 strap so you could use some TCCD at 250+ very easy for some huge badwidth 2.5-3-3 timings.

You can also flash the bios to the P4C800E as they have the same feature set, get the upclock but the added stability of the 875 chipset.

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Originally Posted by bigtoe

What we need is a bios for the P4p800E, this board has a nice upclock ratio of 500 and 533 with the 800 strap so you could use some TCCD at 250+ very easy for some huge badwidth 2.5-3-3 timings.

You can also flash the bios to the P4C800E as they have the same feature set, get the upclock but the added stability of the 875 chipset.

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I also need bios to my P4p800. Is it really possible to flash p4p800e with bios from p4c800E??? I don`t think so. Does any one try it??

any body tired overclocking pentium m 750, just wondering

Hey folks,

i made up my mind about buyin a new Pentium Mobile Sys but there are some issues i am still a little concerned about.

What would u guys recommend at the moment?

- go for an AOpen i855
- go for an i865P(E)/i875P Mobo + CT479
- go for an AOpen i915 (i guess noone will recommend that option) :D
- forget about the mobile crap and buy an .... whatever

As far as i can tell from what i have read here neither of these options is the perfect "holy grail" solution.
What do u suggest?

the 875 with adapter, though I have no Idea where to find one... :(

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Originally Posted by Fishman

I also need bios to my P4p800. Is it really possible to flash p4p800e with bios from p4c800E??? I don`t think so. Does any one try it??

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Bigtoe knows a thing or two about biosses (understatement :D) so if he says you can flash it, you can flash it :p

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Originally Posted by KingZer0

Hey folks,

i made up my mind about buyin a new Pentium Mobile Sys but there are some issues i am still a little concerned about.

What would u guys recommend at the moment?

- go for an AOpen i855
- go for an i865P(E)/i875P Mobo + CT479
- go for an AOpen i915 (i guess noone will recommend that option) :D
- forget about the mobile crap and buy an .... whatever

As far as i can tell from what i have read here neither of these options is the perfect "holy grail" solution.
What do u suggest?

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eather go for an i875P Mobo + CT479
or forget about the mobile crap and buy and by a DFI NF4 / MSI NF4 & an A64 3700+ San Diego (and PCIe card :))

I was looking around newegg and found this thing http://www2.newegg.com/Product/Produ...2E16819111165R

I think thats a good price since a pentium M cpu used to cost around 300bux not too long ago. Hope this helps you guys.

Oh btw I am wondering if I get the adapter will it work with my mobo?

I have an asus p4p800-deluxe mobo and I wana kno0w if the adaptor will work with this mobo.

Thanks and have a gr8 day.

Yeah it's not a bad price, or you could be a cheapscape and opt for a Celeron M, the model 350 and 360 aren't so bad. I picked up a 340 for 40 bucks used and honestly it works great!

First of all thanks ;)
But there are some stories roaming about the CT479 some people say the overclockability can be different from one CT479 to another.
In fact i have my doubts cause if u go that CT479 way u are forced to use the boxed cpu-cooler which isnt a perfect shot ;)
On the other hand wouldnt it be better to choose the AOpen i855.
The FeatureSet of an i865PE/i875P is almost identical compared to the i855 except for dualchannel but u dont need the expensive adapter.
Does the P-M benefit from the DualChannel Feature really that much?

^To add to the arguement, w/ P4C800-e deluxe and ct-479, overclocking is extremely limited w/ stock cooler. The stock cooler of the ct-479, altho it is 3x bigger than the one that comes with DFI 855, absolutely sucks. Stock vcore, clock speed and cooler on DFI 855 resulted in ~20C idle/50C load. Stock everything on P4C/ct-479 results in 35C idle/59C load. :( Also, 855 chipset is designed to support P-M's specifically, while ct-479 is an adapter in all senses of the word. While I don't know if it holds true for the supported P4P mobo's, the P4C does not offer multiplier or vcore adjustment through BIOS. I have modded my ct-479, removing the FSB jumpers and wiring the FDD connector off-board, so that hopefully some better cooling can be uses, but even cooling (such as a standard s478 water block) will also have to be ghetto-rigged, as the ct-479 extends over the standard s478 cooling mounting holes. Zip ties or some other methd for securing a cooling block are the only option.

From my testing so far, the CPU seems to overclock about the same on the adapter, with stock vcore, as it did on the 855 at stock. The additional feature sets of the 875 chipset don't seem to add any performance (...and of course, let's not forget the finding's of some, that 3d performance is actually reduced by the adapter). At 18 x133 mhz FSB, 3:4, both platforms produce 34s superpi.

Just some food for thought. :)

I am confidfent I can modify a water block to fit over the ct479 adapter with no problems. The only thing im interested in is multiplier and vcore adjustments so If I do make the mobile chip leap I can posibly see 2.6-3ghz on the chip and posibly a 250+ fsb. Thats the main thing im interested in. But if thats not the case I may as well stick to my p4 3.0C @ 3.6 or upgrade to a pressy as I water cool anyways and my cpu realy does not benefit from the extra cooling to give it a better oc as I suspect I have hit a wall at 3.6ghz.

Well, I'm seeing guys in the Superpi WR thread with adjusted multis. One has a P4P and one has a P4C. I personally have tried adjusting multi through CrystalCPUID, but regardless of what it's set to, overclocking via clockgen seems to produce the same results (leading me to believe software multi adjustment is not "real")....

how high do you think a 1.6ghz 533fsb chip will hit compared to a 1.7ghz 400fsb chip? Which would you pick for everyday? For bench runs (gonna c-clamp a modded prommie to it for benches)?

Thanks

Finally finished playing with this rig and returned to the owner =)...I miss this silent pc now, I think I am having withdrawal *lol*.

This DFI 852 motherboard has no voltage settings for the chipset, ram, or CPU (well, it does have, except, it only offers the max "stock" CPU voltage so it's useless for OC). This motherboard doesn't support AGP on Windows 2003 server OS as well, so I used WinXP. With Win2k3, you can only run the AGP in 1x speed and detected as "PCI" yay.

The marking on the CPU is below:
RH80536 730
Q509A170 SL86G
1.6/2M/533
INTEL(M)(C)'04

- Highest FSB on unmodded, stock cooling: 208FSB (http://valid.x86-secret.com/show_oc.php?id=11909)
- Top 5, ranked #4 at PCMark2004 at Pentium M category: http://service.futuremark.com/compare?pcm04=2923273
- Top 15, ranked #11 at 3DMark2001 at CPU clocked between 2.000Ghz to 2.400Ghz and same video card: http://service.futuremark.com/compare?2k1=8540816
- Top 5, ranked #1 at 3DMark2003 at CPU clocked between 2.000Ghz to 2.400Ghz, same video card and WHQL driver (too bad, I forgot to use a FutureMark approved driver): - http://service.futuremark.com/compare?2k3=3913730
- Top 5, ranked #1 at 3DMark2005 at CPU clocked between 2.000Ghz to 2.400Ghz, same video card and FutureMark approved and WHQL drivers: http://service.futuremark.com/compare?3dm05=791277
- Reach Top 10, ranked #6 at Aquamark03 at CPU clocked between 2.000Ghz to 2.400Ghz, same video card (has the highest CPU score on the Top 10): http://arc.aquamark3.com/arc/arc_view.php?run=489145297

To anyone using CT-479 + ASUS mobo.

Can anyone confirm whether pin modding or wire tricking (such as connecting VID4-VSS) to modify Vcore works on this combo ?

Thank's

I thought there was a bios available now that includes vcore adjustments.

it is only for P4P800se. Not for P4C800-E deluxe. I am using the P4C.

Well, it seems I'm in luck then :D . I just got a 1mb Dothan core Celeron and ct-479 to go on a p4p800se I've had for a while. Hopefully, I'll get a chance to play around with it this week-end...

http://www.aopen.nl/products/mb/i915GMm-HFS.htm A new killer card from Aopen? Wonder how this will perform.

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Originally Posted by NiCKE^

http://www.aopen.nl/products/mb/i915GMm-HFS.htm A new killer card from Aopen? Wonder how this will perform.

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There was mention above, in Kristos' post about this board: "from what I read on madshrimps, vegeta's board is already dead and the results he got before it blew weren't good, he suspects no locks and it clocked worse then the i855 aopen." ;)

lktuio, I just responded to your PM, but for the forum's knowledge, the u-wire mod does work similarly to a normal s479. On DFI 855, u-wire mod produces ~1.6v. On ct-479 u-wire mod produces ~1.52v. We're seeing TAM and NewBeetle setting superpi records at 1.6v+, so there must be other ways of modding, but until they release their secrets, the u-wire mod is somewhat effective on the adapter. :clap:

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Originally Posted by NoAffinity

There was mention above, in Kristos' post about this board: "from what I read on madshrimps, vegeta's board is already dead and the results he got before it blew weren't good, he suspects no locks and it clocked worse then the i855 aopen." ;)

lktuio, I just responded to your PM, but for the forum's knowledge, the u-wire mod does work similarly to a normal s479. On DFI 855, u-wire mod produces ~1.6v. On ct-479 u-wire mod produces ~1.52v. We're seeing TAM and NewBeetle setting superpi records at 1.6v+, so there must be other ways of modding, but until they release their secrets, the u-wire mod is somewhat effective on the adapter. :clap:

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Can't you adjust the Vcore in bios?