(05-26-2014, 01:52 AM)Overclockedtoster Wrote: [ -> ]You can kill the board if you pinmod the wrong pins in such a way that pins attached to parts that can't handle 1.3v get 1.3v (I've killed boards in weirder ways, LVDS connectors are NOT hot pluggable on laptops.) The chipset will lock the multi to idle clocks, but if you are running at the higher FSB and it boots, then we know something somewhat important: It can run 667 Mhz FSB, it needs the microcode though (we know this because to the clockgen, there is no difference between a chip BSEL'd to 166 from 133 vs one that has that BSEL set at the factory, thus it turns your 533 chip into a 667 chip that you know is compatible, giving you a definitive test if it can boot 667 without a a FSLx mod and the relevant memory SPD tweaks.) You can use thin wire in the socket since it is a PGA chip, only LGA needs the conductive pen or blob of solder.
http://www.overclockers.com/forums/attachment.php?attachmentid=68067&stc=1&d=1221789942
There is the BSEL chart.
http://img805.imageshack.us/img805/9052/98548186.jpg
http://forum.notebookreview.com/hardware-components-aftermarket-upgrades/605383-fsb-downclock-mod-intel-gl960-gl40-useful-info-pll-modders.html
There is a pinout (The one shown is for a 266->200 BSEL mod, but the BSEL pins are labeled.)
I'll try to keep my response short, since I tend to be verbose:
These are my sister's and niece's laptops. They are virtually identical Compaq's. I had such an easy time upgrading the CPUs in my laptop (and backup laptop) that I didn't know about the micro codes in BIOS. For example, I upgrade the CPU on my Sony from T1350 (FSB 533, single core) to T7200 (FSB 667, dual core) without any problems. I had done my research on the motherboard (knowing that it could handle T7200), updated the BIOS and apparently was just lucky that Sony had included it in the codes.
Your skill set is a couple of clicks above mine; so, I have to read a lot to catch up with what you're telling me. For example, I'll have to read up on your comment about LVDS hot plugging. You do realize these are laptops?
One thing I noted that may or may not be very important is what happened when I tried to install the T7200. Well, let me back up. When I learned that I couldn't easily install the T7200, I went ahead and bought the T2350, because I understood it was included in the BIOS update. Unfortunately, I has misread and it was T2150, I think. Anyway, when I put these CPU's in the laptop and turned it on, I could hear the laptop booting (but blank screen). And, the reason I'm sure that it was really booting was because, when I put the Celeron back in, I got the Windows notice that told me Windows hadn't started properly, etc....the one with "start windows normally, safe mode, etc.". Wouldn't that indicate that it was indeed booting with the T7200?
I also see that someone provided a BIOS on this post as a possibility, but I fear using it without knowing how it was modded.
Since your skill set is above mine, I need to look at all the info you gave me and make sure I thoroughly understand. While this is an old laptop and I could probably find a cheap replacement on eBay, I'd rather not fry the board.
Thanks for all your help thus far.
Oh yeah.....I also read multiple posts about people having problems with this set of Compaq laptops with this chipset and installing the CPU's that are actually listed in their seemingly secret specs. Something about CMOS and it not clearing completely. The CMOS battery is VERY difficult to access so I thought about a short experiment of using a program I found on UBCD that clears all CMOS settings, letting the laptop set for a half an hour (without laptop battery and unplugged) and then, try installing the CPU.....while I'm reading up on the stuff you posted.