are celerons multiplyers unlocked in bios ?
with a p4p800se ?
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are celerons multiplyers unlocked in bios ?
with a p4p800se ?
What BIOS and mobos are you using? I ask because I "lose" my 1MB cache on my 1.3Ghz on P4C800E and P4P800 (flashed to -E) and P4P800SE mobos, it shows in BIOS on the P4Ps, but nothing shows for L2 on CPU-Z etc. and it is much slower than your scores as a result.
This was me thrashing my slower 1.3. :) But both B1 stepping :(
http://www.meltdown.fsnet.co.uk/pics/Intel/1323.jpg
Cheers,
MM
i have a p4p800-E, bios is 1007.003. For the 1M score, i have a new instal of windows, and close all process, 2225 timing, there a few optimisation.
For cpu z, i have the same probleme with 1.28 version, passt to 1.29 and it's ok :)
I have a question, have you seen a defferance between stock vcore and 1.6? and what type of cooling do you use?
Thanks for that. CPUz comes out too often for me to keep up LOL. But it shaved 2 seconds off the Pi time WITH the cache showing.
Just for comparison then:
Asus P4P800 (flashed to P4P800-E 1007.003)
http://www.meltdown.fsnet.co.uk/pics/Intel/1323-1m.jpg
Now with 1:1 ratio and tight timings 2225.
http://www.meltdown.fsnet.co.uk/pics.../1323-2225.jpg
Volts don't make much difference on these CPUs it seems. Using standard Asus CT-479 heatsink.
Cheers,
MM
Hi,
I have ordered a Celeron M 370J (1.5Ghz, 400FSB, 1Mb Cache L2, c0 stepping) and a P4P800SE + CT-479.
How much can i expect from this configuration with stock cooling?
2.5ghz would be safe bet, however not more than 2.75ghz because of the fsb limit :rolleyes:Quote:
Originally Posted by Mike@Portugal
but once you get it, pls benchmark the hell out of it :)
Has it been proven that the new C0 steppings still have the FSB bug ?Quote:
Originally Posted by caater
well, the problem is not cpu but asus motherboards..Quote:
Originally Posted by Jericho
they are unable lock pci/agp unless you boot at 200-201MHz fsb..
Hmm interesting,
but should'nt that be fixed then IF a lower multiplier can be used , as already pointed out.
But to BIOS< set multiplier to 9x save exit.
Back into BIOS set FSB to 201 save exit.
etc
Just some observations:
My 350J in my i855 board (the AOpen one) will clock to 13 x 180 (2340MHz) at stock volts. With my CT479 and P4P800-VM it will only get to 13 x 166 stable (even creeping up towards 175Mhz makes the PC lock up) at stock volts. 13 x 170 is just about bench stable but not prime stable. It could be my RAM (normal Samsung PC3200) as the P4P800 will only lock the AGP and PCI buses if set to a 133MHz FSB and 166MHz RAM (333 DDR) whereas the AOpen board will lock them at 1:1 (100/100 in this case). So even @ 166MHz the RAM is running @ 208MHz and @ 175Mhz it would be @ 219MHz - and the VDDR settings on the VM board only go up to 2.65V. I'm not convinced it's the RAM though as I have the timings @ 3-4-4-8 (and am disabling the PAT alike acceleration using the 865 tweaker) so it really ought to be able to manage an increase of 10% or so. I suspect the BIOS is selecting tighter timings for the chipset and / or lower volts for it when posted at a lower FSB. It's a shame this can't be rectified (either in the BIOS or via software in Windows).
When I have the time I will try wire / pin modding the board / cpu to up the vcore and select a 200MHz FSB but I'm not confident. IIRC the FSB mod will have to be done to the mobo socket / CT479 pins and the vcore to the CT479 socket / CPU pins.
Oh and for those that have asked the Celeron Ms are multiplier locked and VID locked (i.e. they lack EIST functionality) on the chip. Which is why my hopes for the 350J were so high (lower multiplier, C0 stepping)
are you unable to change voltage with p4p800-vm?
you should try to boot up @ 201fsb and bump voltage a little bit.
AFAIK the only way to change voltage to higher than default is via a pin / wire mod. There's a voltage setting in the BIOS that does nothing (not even decrease it) on the 350J and seems to half work (decreases only) for my (Banias) Pentium M... In windows with the Pentium M I can also use any of the various tools to change the VID or multiplier to lower values but none of this works for the Celeron M as it lacks the EIST function.Quote:
Originally Posted by caater
Have just noticed there's a new BIOS (1017) out for my board though so I will try that tonight and see what it can do. Will also try bumping the voltage but I am thinking that the only way to get anything good out of it will be to trick the board to post at a higher FSB.
I have had a busy night tonight - to cut a long story short I have tried:
Flashing my P4P800-VM with both a P4P800 bios and a P4P800-SE bios. Both worked well enough to post but both also crashed after choosing "save settings and exit". Luckily both still posted and booted with default values so I could flash the board back to the VM BIOS.
Wire modding for extra vcore. Have used both 1.425 and 1.61 but neither made any difference.
Wire modding for a higher FSB. Posts fine @ 166 ("reserved" in the BSEL table) no good @ 200 (even with higher voltage). Didn't realise wire modding to a VCC pin can cause damage but it has somewhere - even with the wire removed the chip is always posting @ 166 now (could be chip or CT479 but suspect I've blown something on the mobo)
When posting @ 166 and a higher vcore I still can't get any higher than the low 170s - so either the chip really doesn't like high FSBs (though it should be fine being a C0 part) or the mobo doesn't. This is even @ 166:166 (1:1 FSB / RAM ratio) so I don't think it's the RAM either. So it must be either the CPU or the mobo. Have reasons to suspect both.
Thanks for the update.Quote:
Originally Posted by malfunction!
Keep us posted on any progress with the celeron-m C0.
I too was under the impression that the old FSB limitation was due to the B1 stepping, and therfore the C0 should have fixed this. :confused:
Dont' know if someone saw my post about Celeron M 1.5Ghz (c0 stepping) + CT479 + P4P800SE so i ill post it here again.
The system is not stable beyond 160FSB no matter what vcore (1.6v max) or memory settings :mad:
Any sugestions?
With the cpu at (160x15) and memory at 200Mhz (4:5) with 2.5-3-3-5 (best i can do) i have achived this
Bought an Asus A9550GE to help the party, clocked it at 450/250
SuperPI: 36,313s
3DMark 2001SE: 12893 3d marks http://service.futuremark.com/compare?2k1=8633417
3DMark 03: 3736 3d marks (forgot to publish it)
3DMark 05: 1763 marks http://service.futuremark.com/compare?3dm05=985162
http://img51.imageshack.us/img51/380...b1601au.th.jpg http://img42.imageshack.us/img42/477...01se8cq.th.jpg http://img215.imageshack.us/img215/1...34609jj.th.jpg
Nice to know I'm not the only one having problems (nice for me, not for you obviously)... Maybe yours is just a bad overclocker compared to some of the Pentium Ms? How far can you go on default volts? Still 2.4GHz?Quote:
Originally Posted by Mike@Portugal
@ malfunction & Mike@Portugal ! : I was thinking a bit, why there could be the problem with C-M not going at higher Fsb. Here are my thoughts:
- MoBo: problem with PCI/Agp divider/lock (bios) on Asus boards (or chipset can not handle it @ mobile chipset-no CT adapter boards), so problem with SATA-instability; possible solution : for test using IDE HD & PCI graphic card with disabling Sata in bios, which is too sensitive to higher PCI clock & running ram in_synch.
- default Vcore of CM3x0 is lower (from datasheet!) than on P-Ms & MoBo doesn´t apply higher set Vcore right @ boot but later after Cpu recognition, so no boot at too high Fsb or instabilities in Win later.
- C-M has disabled IntelSpeedStep changing frequencies/Fsb/multi/Vcore (other older type powersaving methods work normally-HLT/softColing); possible solution: Vid pins wire trick on CT adapter to rise default Vcore (tricking the adapter & MoBo), IMHO Vcore wire trick on MoBo or under the adapter will not work, should be done on cpu or on adapter socket upper if done ...
- C-M IMHO has (not like P-M dothans) locked multiplier, so no changes in Bios are effective regarding this so as proofed OC is done only by rising Fsb as usual. Could be that Vcore for C-M is locked too using that CT adapter & no bios Vcore change is effective on chip really, because the adapter has its own Vcore regulator. Possible solution: if the Vid pin wire trick does not work, maybe modding the adapters Vcore regulator would be the only alternative to get immediatelly default Vcore higher & possibility to boot & be stable @ 200Fsb/2,6GHz for CM350J (or bypassing adapter on-board Vcore regulator somehow for Vcc voltage getting it from MoBo instead or so) ...
--
Regards, http://www.spajky.vze.com :)
so no more solutions for celeron m?
Mine boots at 160FSB perfectly and it's stable... i can even put it in 170FSB inside windows throught clockgen but it doesn't boot at 170FSB
Here is SuperPI at 170FSB 2-3-3-5 (stable for superPI 1M at least)
http://img239.imageshack.us/img239/2...ifsb1705oo.jpg
Bit of a random thought dump to keep the thread going:
I'm working away from home at the moment but when I get the chance I will have a play around with my other chips in both my CT-479 + P4P800-VM and my AOpen i855 board - hopefully I will be able to find out what the limiting factor is. I have a Banias Pentium, Dothan Celeron and 3 Banias Celerons to play with. In the i855 board even the Banias Pentium M can clock at 180MHz FSB (10 x 180, RAM @ 1:1) so I'm not convinced my Dothan Celeron (especially as it's a C0 core) is the cause of the FSB problem - in the CT-479 the Banias Pentium can only clock to 166MHz. I don't have any "uber" RAM but I do have both Samsung PC3200 and Crucial / Micron PC3200.... The i855 machine is using the Crucial whereas the CT479 machine is using the Samsung so *maybe* that's why the i855 can clock higher (though the P4P can at least use looser timings than 2.5-3-3-6 which is as high as the latencies can go on the i855 IIRC). I finally found some wire (copper thread type from a power cord) that I can easily wire wrap pins with so I can try a few options... (I was using alu thread from data cables before and it just wasn't working for me)
My posts @ Dothan overclocking thread, first one with some not quite accurate statements, but others IMHO Ok! Resolving certain problems! Mods!
http://www.xtremesystems.org/forums/...007#post934007
http://www.xtremesystems.org/forums/...273#post944273
http://www.xtremesystems.org/forums/...197#post945197
http://www.xtremesystems.org/forums/...595#post945595
http://www.xtremesystems.org/forums/...319#post947319
Quite a lot of stuff to read carefully, I know ... :)
& here is another idea also! (about non-Asus boards)
http://www.xtremesystems.org/forums/...920#post946920
--
Regards, Spajky, :) passed months ago -
3rd_Ann.: "Tualatin OC-ed/BX-Slot1/inaudible setup!"
Has anyone tried the new bios ( http://www.xtremesystems.org/forums/...ghlight=ct-479 ) with Celeron M + P4P800SE ?
i think it got mentioned that the bios suport only adds newer cpus
PS.: has anybody studied my modding proposals on those links I gave in my previous post or even tried some? (or everybody else is already on Holidays away ...)
Tried the u wire mod, also tried to up the voltage at bios. Still can not pass 185 fsb. Using zalman 7000B-Cu so definetely not temperature problem (less than 40 C).
Any other workaround ?
Quote:
Originally Posted by Spajky