W860CU/W870CU hunt for PLL that works with setfsb

I've gotten an email from Abo saying that the SLG8SP585V PLL doesn't work with setfsb. I got that PLL from the service manual, but I think we should do one final run on this thing before we close the door on it completely. Could anyone strip to the bare motherboard of either model, and search for any chips for a new PLL? Pics would be great too.

 

FYI: http://forum.notebookreview.com/sager-clevo/497374-pll-8760-w870cu.html

 

Yeah I saw that thread, not too long ago. I also saw that the M17XR2 had the same PLL but further searches on the M17X mobo turned out otherwise. So I'm hoping if someone searches the mobo, we could have that chance too.

 

Good luck.

 

I think the problem is that it doesn't support changing the bclk. I could be wrong though.

 

Wonder if Soviet would have a go at this?

 

I just pored over the spec sheet, there is no way to program the control registers to vary the PLL frequency. The PLL is fixed at 100 or 133MHz there is no incremental adjustment possible. Sorry guys it’s not happening if that is in fact the chip inside the 8690\8760

 

That's what was said about the M17xR2 and M15x. Both now work with setfsb using the Asus G73 PLL (M17x) and the Asus N61JQ PLL (M15x).

Even Abo told me originally that it couldn't be done with these systems.

 

This is the way I look at it:

If the Sager’s in fact uses the Silego part, I stand by my statement that it is a no go. However if there is two spec sheets, a public one and a private one (which most likely would be under a NDA) then it may still be possible for software programmability of the frequency. This is highly doubtful thought.

Why I think this, has to do with even the BIOS that allows over clocking, it only works with the extreme processors with unlocked multipliers. So the over clock probably is manipulating the multiplier and not the CPU clocking like the setfsb appears to do. Eleet is the same, it manipulates the multiplier.

It gets back to someone opening thier machine and checking the part number of the clock to verify what's stuffed on the board. At this time it's not going to be me.

 

I was thinking along the same line because that's how it was with the G73 and M17x. Both systems had OC'ing options in the bios for extreme procs but the M15x does not. I scored 23K Vantage CPU with my M15x thanks to setfsb, evga eleet and throttlestop.

 

Bump. Could anyone post shots of the motherboard? Particularly the south bridge.

Edit: I managed to have a look myself, but nothing interesting on the north bridge.

 

The part you are looking for is really small, it is going to be 5mm x 5mm square or .197” x .197” the reference designator is U7.

 

I managed to look at a small part of the south bridge, found that U7 is indeed the Silego part.

 

so with the confirmation of the silego it seems like a no go with setfsb?

 

Clevo has a history of locking the pll so its more then likely always going to be a no go

 

Yeah getting that feeling too.

 

Lame. 10char

 

Tragic, but this way they force people to go for the extreme editions, business wise a good policy. However, even with an extreme edition using SetFSB would be very helpful.

 

And then they bios lock extreme overclocking...

 

True, but with the that .12 bios and TDP Unlock (and a 180W PSU) it should be possible to push the 920XM to 2,8 ((15+2+4)*133) GHz and let it stay there. I don't think anybody would be able to overclock that CPU any further without drastically improving cooling. But yeah, Alienware really has the advantage if it comes to overclocking, Clevo should work on this.

 

use evga E-leet and you can still OC via multipliers or throttle stop

 

Getting 2.8 Ghz on all cores is no problem, i myself have gotten 3.4-3.5 Ghz on all cores with stock cooling. The cpu was pulling 75-80 watts and the temps were in the 80-85C range. I would only go further than that if i used my air conditioner to cool it.

The 920xm is truly a great processor when given room to stretch its legs.

EDIT: Actually I was only able to get to ~2.6 Ghz on all cores, comfortably. At that speed the cpu was using ~65w and the temp was about 85C. I could go further but don't feel comfortable doing so without cold A/C air blowing in from the bottom.