After doing the research I really wanted to go with the Coollaboratorys Liquid Ultra, Apparently it's the best there is. But I don't think I can use it here due to the incompatibility of the Aluminum. My next best choice was exactly as you suggested. I figure 2.2Ghz is going to be the point at which I have to actually start to play with the vCore, which i'll probably set to 1.4v to achieve. From what I've heard 7447A overclockers can get up to 1.5v without having actual overheating problems. So I figure I would be pretty much fine with a Repaste with some high performance thermal paste, in addition to this lower TDP chip. Realistically I think I should be able to get to 2.5Ghz. That's probably going to be my Dream goal from here on out. From my calculations not only would that put me in the top spot for the "Fastest Powerbook ever," but also, the fastest G4 single core chip ever. I'm estimating around a 1400 Geekbench score @ 2.5Ghz.May I suggest to you, asaggynoodle, that you consider using Noctua NT-H1 thermal interface instead of AS5? I've found that NT-H1 is comparably priced and better at conducting heat, to the point where it's now my standard TIM for pretty much everything. That may give you just a little extra headroom for overclocking, I think!
It also depends on how it dries out over time. I use the cheap stuff from RadioShack or direct from China via ebay. Last tube is something called HY510 Thermal Grease Thermal conductivity: 1.93W/m-k Thermal Resistance: <.225 C-in^2/W
Sorry it's been a while since the last update, I screwed up the last motherboard and had to wait for a new one from Australia.. (Go figure).
Nah, we're going to keep throwing into your face the fact that Apple *did* make a prototype dual G4 which hypothetically might have been just the teeniest bit faster forever.
I've come to the conclusion apple intentionally crippled the PowerPC mobile options there at the end. You have to figure the Intel/Apple negotiations had to have been at least a year or two. That would have given plenty of time for Apple to come up with a road map to incorporate x86 into their lineup. By late 2005 there was no competitive reason not to have either a Dual G4, or some kind of "G5" solution. *Puts Tinfoil hat on* What I'm trying to say, is that I PERSONALLY believe that Apple had intentionally handicapped the mobile options so that the performance comparisons between the last G4 PowerBook, and the first MacBook with x86 looked much larger than they had actually been. I mean, from a marketing standpoint that is probably the best thing you could have ever done. That would boost sales as everyone wants "40% FASTER!" performance from the year before.
The reason I'm a bit skeptical about the particular eyewitness account is they claimed to have had a G5 prototype that was a completely buttoned-up machine that looked "basically like a regular powerbook but thicker", not an obviously prototype thing with acrylic case parts, etc. Not to say it's impossible that they got as far as making fully-skinned machines, I'm sure Apple has the resources at their disposal to mill out some one-off aluminum enclosures, but... I dunno. The eyewitness in question is mostly reliable but has been known to fluff the truth now and again.
I dunno. Intel's "Pentium M" chip was a real game-changer and Apple seems to have been caught really off-guard by it. The first Pentium M machines (which also included USB 2) came out about 6 months before the USB 2.0-equipped Aluminum Powerbooks, and I remember being shocked at just how well they performed compared to the 867mhz Titanium I had at the time. If you look up Geekbench results you can see just how badly the Pentium M *crushed* the G4 on a *clock-for-clock* basis. A January 2003 vintage Dell D600 with a 1.3ghz Banias Pentium M manages a score of 879; that's better than a 1.5ghz Powerbook a year and a half newer, and it manages it with a comparable power draw. While Apple certainly *could* have compensated by slapping in another G4 and going dual the resulting system would suffer accordingly in terms of weight, heat, battery life, etc.
