Thanks a ton Johnny!Quote:
Originally Posted by Johnny Bravo
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Thanks a ton Johnny!Quote:
Originally Posted by Johnny Bravo
Time for thread revival guys :D
Celeron M 350 (13X100 = 1.3Ghz)
Asus CT-479 / Vcca mod
Asus P4GPL-X / all mods
2x512MB Corsair PC3500 BH-5
X550, etc etc
Vcore= 1.63V
Vcca= 3.29V
Vpci= 1.805V
Vdimm= 2.9V
Celeron 1.3Ghz @ 2.92Ghz = 125% overclock on stock cooling :D
:toast:
very nice
whoa, lets see some super pi times! thats awsome!Quote:
Originally Posted by Micutzu
i clocked my 1.5ghz celly m to 2.15(wont go any higher on my laptop) currently 2nd as far as my celly goes.
Bravo :clap: , but till now is been found, that Vcca is not safe to be kept over 3V [double the value & double the max current recommended there] !! long term. Now since IMHO you made world record with C_M, it is time to lower that voltage not to kill something!. But make a SuperPI result before that !! :) to see us the 1M result!Quote:
Originally Posted by Micutzu
What are than OC results & SuperPI 1M @ 3V Vcca? This is ordinary/older Dothan C-M_350 isn´t it? B1 step. is older one (C0 newer rev.350J), not sure, I forgot ...
After lowering OC, test it with THIS : already prepaired 16kb test & tell us till where (clock!) it can handle it
:clap: again ! :) [if is not just a April Fools Day joke ..:woot: ]
Thanks guys, indeed 3.3V Vcca is a little extreme, but afterall it's a $40 CPU :). Actually i was thinking of extra mods for the adapter to allow more than 3.3V for Vcca after i'll switch to a little better cooling.
The Celly is indeed B1 (older) stepping and seems to Prime just fine at 2.6Ghz / 1.42V Vcore / 2.95V Vcca. I've tried a SPi 1M at 2.8Ghz, it's in the 31's on a really dirty OS with no tweaks ... remember this is P4GPL-X and it's at least 1s slower than the P4C800's out there at the same clocks.
That's impressive for a B1 stepping. I wonder how a C0 Celeron would do?
http://www.xbitlabs.com/web/display/20060418124251.html
I think it is time to check for its datasheet to see if there would be any chance to modify CT479 adapter for those C-Ms (core Solo-same pinout like Duo). We need to compare Dothan 2 Yonah pins differences since I believe the differences are not greater than at times of P3 to Tualatin mods era; IMHO Yonah should work on same Dothan Bios-es; just minor core differences with core production shrinking I believe ... start "brainstorming" :) ...
If this was possible.. Celeron M 4n0 .. "modded" to run on CT-479.. I guess this would aslo apply for Yonah.
As a budget system capable of "extreme" benches it sure would be nice if it was possible to run thos new Celeron M's on Asys CT-479 compatible board (I have "a few" btw).. :)
There is NO WAY to let 479 be compatible to 480, they are so different, don't even think about it man :eek:
Sort of off topic here, but what is the max "safe" voltage for Vcore on Dothans? I have mine running 2940MHz (12x245) @ 1.775volts, VCCA @ 1.8v, Vdimm 2.65v, AGP VDDQ 1.8v. SPI 1M 26.420secs
I'm not getting much droop since I've done the Vdroop + the combined Vdroop+Vcore mod, about 16mv according to onboard, DMM about 1mv.
Running P4C800-EDlx on 1024beta bios. Hipro5 mods on adaptor. Chip is watercooled so I'm not worried about temps, Load is at 33C.
I believe max.1,65 for air; maybe 1,75 max for water ... :)Quote:
Originally Posted by Maviryk
Probably true; but ... we should check & compare datasheets anyway first; there could be a slight chance to do some mods (rewireing some pins etc. to maybe make it work anyway like at Tualatin mod times)Quote:
Originally Posted by FunkyRider
Hmm... I'm so close to 3GHz though!
Might be time for me to find a 5K Ohm resistor to adjust VCCA higher than 1.82 to see if that helps.
My temps haven't gone past 33C yet, but it is not summer. In summer I think maybe 36C max temp.
I think it's time for me to reclaim my crown again...:D
It's not a celeron, it's a PM750 btw.
I need to figure out where to get a 5k ohm 25 turn trimmer locally, the only ones I can find are 10k ohm.
Oktavius << 36,704 sec << Celeron M 380 1600 @ 2600Mhz 16x163 @ default - Value Ram 2-3-3-6 << screen
my best C-M350 @ asus stock cooler
ct-479 mod 2,6Vcca / 4,3Vchip
http://img428.imageshack.us/img428/4148/snag00117vd.jpg
Very impressive ! What mobo were you using and what was the ambient temp ?
P4C800e-dlx and temps?
no idea, I don´t trust the Winbond-chip ...
but stock cooling hmmm I think about ~55°C
C_B is that win2000 or XP? That time you've got is very good, faster than me at lower clocks :D care to chat a little on tweaks?
that´s WinXP
in my gallery u find more good benches :D
http://www.forumdeluxx.de/gallery/sh...&what=&name=&=
okay my tweaks?
hmmm disable all USB Network Sound options
a new winXP installation with Windows default Grafics driver,
defragment your partition
goto Performace Options -> Advanced
vis.effects for best performance
CPU-scheduler to programs
Mem to systemcache
pagefile=0
reboot with diagnostic start (msconfig) to shut down some services ...
set SuperPi to realtime mode
done :cool:
Apart from the "disable all USB Network Sound options" I've got them covered, can't wait to get my P4C800 sorted out again for such events :D we should have a little mini comp for ourselves here, do it for the pride :toast: what say ye gentlemen ?
OK, i'm in with my poor P4GPL-X :).
Now i have here for testing Celeron M 370 1,5ghz @2400mhz @1,4v
I will try moore :rolleyes:
Breaking up the dirty thirty with my humble celly.
Mobo is P4P800SE. P4GPL-X sucks indeed.
BTW, processor hits a wall at FSB 186 in P4GPL-X. Moved to a P4P800SE, same vcca, same vcore, boots with no problem at FSB 200. Pretty strange since my P4GPL-X ran flawlessly a P-M 750@2.8GHz. The processor is not the problem, the mobo is not the problem, where the *^^&*^ can the real problem be?
Solved the mystery with the so-called celeron-m fsb capping. Looks like there is a P4GPL-X/P4GD1 BIOS problem (I suspect Assus intentionally crippling the bioses to a certain fsb as they have done with P4S800D-E "i875 killer" and Asrock 939dual-sata2). Using clockgen, I got the same results as on P4P800SE. Otherwise, system refuses to start when going over FSB 186 no matter what.
lol so "assus" (lmao) cripples the bios for celery's only? cuz pentium m's dn't have fsb issues did they?
Quote:
Originally Posted by caligula
errr no, the limit is ont he chip as folk have used various boards (not just Asus) and encountered the same problem. Anyhow, with a bit of VCCA you can easily get past 200MHz...
http://img61.imageshack.us/img61/729/3354ghz9oq.jpg
i need a bios for the p4p800 se board for my rig i'm trying to build, would someone be nice enough to link or upload it? plz plz plz?????
what is vcca? for the north bridge?
Usually the manufacterers Website is a good place to get Bios versions..Quote:
Originally Posted by i found nemo
Regarding mthe "VCCA-mod" it should be found here in the thread.. and elsewhere... (Not recommended for the lesser experienced.. and better reserved for "frying" Celeron M chips).. :D
i_found_nemo, frankly said, you should find another thread to have fun in.
The vcca mod is applied to the CT479 adapter and is described in the respective ct479 mods sticky thread - look for the post made by Hipro5.
johnny, the chip does not react to vcca, starting from 1.7V all the way to 3.2V.
I can tell you what happens: exactly at FSB 187, the board refuses to start. The chip can prime flawlessly at FSB 186, 2V VCCA, increasing the vcore or vcca (vdd is at 1.8V) doesn't help a damn. Using clockgen, I got past FSB 195 quite easily. Since the bios does not allow me to increase fsb but clockgen does - and mobo can handle it, guess who might be the problem.
Im on 2545 mhz. End is at 175 fsb no post whatever i do. :cool:
Little bump to this old thread :rolleyes:
24/7 clocks for my new low-budget rig:
Celeron M 360J (C0) @2342MHz (14x167) 1,35v, inbox cooled
Asus P4GPL-X + Asus CT-479
512MB Winbond BH6 167Mhz 2-2-2-4-2 (single channel :( )
SuperPi 1M - 39,812s
Not bad at all for 25$/20€ CPU :woot:
FSB stuck @~170 for this one. :slapass:
EDIT:
Got 2x256 Corsair BH5´s:banana:
Celeron M 360J (C0) @2342MHz (14x167) 1,35v, inbox cooled
Asus P4GPL-X + Asus CT-479
2x256MB Winbond BH5 167Mhz 2-2-2-4-2
SuperPi 1M - 37,500s
EDIT2:
Got new Cel M 350J
Max FSB ~185 :up:
Paid ~10€ for it
Intel Celeron M 350J (C0) 1300MHz @2405MHz (13x185) 1,28v
Asus P4GPL-X + Asus CT-479
2x256MB Winbond BH5 185MHz 2-2-2-4-2
SuperPi 1M - 35,625s