Celoron M(dothan)-

[Spajky]

Any other workaround ?

Since "existing Boot&FSB Problem" is present with Celeron_M, I got another idea to trick the MoBo (w/o bios code hex hacking!) & here it is; didn´t think it about it before!

The problem is present, because at first moments/seconds of boot, the default boot Vcore of this CPU is only around 1,2V /Vcc,BOOT one!/ [see links I previously gave] & is multplier locked & even "Vid wire pin trick" or Vcore rising (in Bios Cmos settings) does nothing at those moments [kicks-in later what is set/rised in Bios] & default FSB is only 100Fsb/400qp.
So what to do? Tricking MoBo to think right @ boot that has inserted in socket a 133Fsb Cpu instead a a 100Fsb one !!! MAYBE this COULD WORK if the Cpu is not a bad example/OC-er & CM350 will boot right @ 1,73GHz! Try !!!

There are two ways:

- one doing it on the P4 socket [wire trick as for Vid definition way] (or under the MoBo soldering same) by forcing MoBo to think that has inserted 133Fsb Cpu by using BSEL (bus_select, BCLK) pins combination (H means insulating pin, L means connecting it to nearest Vss (GND) pin! Table for P4:

pin AD5 pin AD6 Vss (Gnd) closest pins: AD4; AC5,7; AE7
Bsel(1) Bsel(0) Fsb_MHz
L L 100
L H 133
H L 200 (this you do not need!)


- the other maybe easiest way is doing the "same kind of mod" on CM/PM socket on Asus_CT-479 adapter by only grounding/shorting a Bsel(0) - C16 pin (forcing it on L!) to some nearest Vss pin: B16; C15; D15,17

So CM will boot with 1,2Vcore & 133Fsb & than Bios Cmos settings kick_in (rised Vcore & Fsb over defaults, so taking care about PCI/AGP clocks & problems with peripherrals, with good cooling should go to 200Fsb & maybe more. With preventing peripherrals problems if the Cpu can not go so high, there could be some other problem to resolve:

- modding the adapter: rising VccA [measuring it first, PLL supply voltage, max.120mA - see those my previouly linked posts for PM-dothan discussion] to 1,8V instead of 1,5V, since C_M supports both voltages. This (overvolting) would help internal Cpu generated_clocks to work better/at higher clocks, same as does overvolting pure core!

This last may be needed, because I found 2 datasheets for P_M, older ones states VccA 1,8V, newer one 1,5V & Asus IMHO took for all CPUs lower one not thinking much about extreme OC-ing!

Damn, if I would be so good in money earnings like I am with modding ideas, I´d be a millionaire .. ...