Tualatins and Lin-Lin 370 adapter: Will it adapt from PPGA..

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Archived from groups: alt.comp.hardware.overclocking (More info?)

I've been digging thru archives and on the net but never found this
lin-lin question definitively answered.... Has anybody tried this
combo? PPGA -> FCPGA using a Lin-LIn 370 adapter?

(lin lins are commonly on ebay or at compgeeks etc...)
fyi: http://www.jordanautomations.com/lin-lin-adapter.html

Background...
I've got an ABit ZM6 mobo which is a PPGA socket. It natively runs the
early mendocino cels (and OCs many) and w/ the latest flashing the
very early cB0 stepped coppermines (FCPGA?). Doesn't seem happy OCing
the cB0 coppermines however.

To overclock my 566 cB0 cel (@850) - I installed a Lin-Lin and sure
enough it would overclock.

Following the progression of A to B to C..
PPGA -> FCPGA -> FCPGA2

The lin lin 'claims' to adapt: PPGA -> FCPGA *OR* FCPGA->FCPGA2
But doesn't say any anything about PPGA -> FCPGA2

What about going all the way from PPGA -> FCPGA on PPGA board like
what I have?

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

FYI... what I'm talking about...

http://www.compgeeks.com/details.asp?invtid=S370TUA&cat=CPU

 

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Archived from groups: alt.comp.hardware.overclocking (More info?)

~misfit~ wrote:

> pgtr wrote:
>
>>I've been digging thru archives and on the net but never found this
>>lin-lin question definitively answered.... Has anybody tried this
>>combo? PPGA -> FCPGA using a Lin-LIn 370 adapter?
>>
>>(lin lins are commonly on ebay or at compgeeks etc...)
>>fyi: http://www.jordanautomations.com/lin-lin-adapter.html
>>
>>Background...
>>I've got an ABit ZM6 mobo which is a PPGA socket. It natively runs the
>>early mendocino cels (and OCs many) and w/ the latest flashing the
>>very early cB0 stepped coppermines (FCPGA?). Doesn't seem happy OCing
>>the cB0 coppermines however.
>>
>>To overclock my 566 cB0 cel (@850) - I installed a Lin-Lin and sure
>>enough it would overclock.
>>
>>Following the progression of A to B to C..
>>PPGA -> FCPGA -> FCPGA2
>>
>>The lin lin 'claims' to adapt: PPGA -> FCPGA *OR* FCPGA->FCPGA2
>>But doesn't say any anything about PPGA -> FCPGA2
>>
>>What about going all the way from PPGA -> FCPGA on PPGA board like
>>what I have?
>
>
> I doubt it. The mobo has to support coppermines (FCPGA) already. The early
> coppermines (some cB0 steppings) were made pin-compatible with the earlier
> PPGA sockets. Later FCPGA were not compatible with PPGA-only boards and you
> needed a new board.
>
> To support a Tualatin the board's voltage regulators need to be able to
> provide a reasonably high current 1.5v supply to the CPU. PPGA boards
> weren't designed with this in mind. Also the BIOS needs to support the newer
> 'microcode' instructions for the later CPUs.
>
> Your board and CPU were already pin-compatible, I don't know why the lin lin
> made it more stable. I'm not familiar with this product but find it strange
> that the same product can do both convertions. Maybe it can go from A-C but
> simply doesn't recommend it as 'A' boards were designed for vcore of 2.0v
> but could be made to work at 1.70v ('B' specs) without too much of a
> problem. 'B' boards were designed to work at 1.70v and could do 1.5v ('C'
> spec). However expecting a voltage regulator syetm that was designed to put
> out maybe 18W at 2.0v (A) to handle around 45W at 1.5v (C)

A PPGA Celeron 533 is just under 30 watts and a 1.2 gig tualatin is 30-32
watts, depending on the stepping. There's not a heck of a lot of difference
in power; it's the lower Vcore, which translates into higher current at the
same power, that creates most of the regulator heat issue. (or having to
run a higher than normal Vcore, which increases current draw)

> without smoking
> is a bit much. The voltage regulators that feed the CPU vcore just aren't
> specc'ed for it.
>
> I'm running C's in boards designed for B's and have to have a fan blowing
> onto the voltage regulating FETs or they get hot enough to mark the skin. I
> had one melt it's own solder and basically slide out of position once.
> That's only B to C, not A to C.
>
> Make sense?
> --
> ~misfit~
>
>