quick question about d901 SLI and CPU

i know this motherboard supports SLI, but what i'm wondering about is the old models, the one's that supported, the clevo d901c is able to run desktop quad core cpu's right? also this model supports SLI, my question is would it possible to do 460m SLI 470m SLI on this thing or maybe 5870M crossfire, i believe 285m sli is possible. Also i take it the i7 revision of the d901c, physically the case hasn't changed, so would it be possible to upgrade motherboard ram and cpu to i7 status?

 

No. You can do 9800m gtx SLI as the max config, unless you build your own gtx 280m cards. Its mxm 2.1, 460m 470m and 5870m are not possible.
And the d900f does not support SLI.
You are looking for the newer x7200...

 

i meant d901c... ok though not much headroom

there's no converters mxm 3.0 to 2.1? it's just a slot issue?

 

no converters. more than a slot issue. definitely not possible.

Only thing possibly is if you can do BGA soldering you could put 2 gtx 285m BGAs onto 2 8800m GTX boards with SLI connectors and try to run them in SLI. I will let you know if I get a BGA reflow oven

 

i was going to buy a IR station 4 months ago, haven't gotten round to it yet, besides it's more then just desoldering the chips, voltages come into play so i guess it's no period.

 

what is this

http://forum.notebookreview.com/5349579-post1042.html

somebodys confirming gtx 280m is supported by 901c...

 

The 280m is not supported officially, but you can put in and it will work. However the cards which are in the MXM format supported by D901C do not have the SLI connector, even if you put 2 you can not connected in SLI.

 

yea cause there 2.0 and dont support sli

 

Even if you have an (unlikely) MXM 3.0b to MXM 2.1 adapter and solve all the electrical discrepancies, your motherboard MXM 2.1 sockets are rated PCIe v1.1 and the bandwidth will be PCIe v1.1 limited (half of the MXM 3.0b / PCIe v2.0).

 

Voltage will not come into play at all. Personally I think it is 100% possible and furthermore easy if you do know how to mount BGAs properly.
all g92 boards are pretty much the same. Most of them are 1v including the gtx 280m so it wouldn't be a problem.
Current consumption could be an issue but I doubt it.

Its actually pretty silly that we are talking about BGA soldering, really someone should just try soldering an SLI connector onto 2 cards, that actually wouldn't be very difficult.

 

i was wondering something why you say sli doesn't work, because your starting phsyx would work, you don't necessary need a sli cable to enable sli. i've enabled sli without a cable before on desktop pc's, doing tests i did notice there was some slight performance decrease but not by much maybe 10 fps, sli showed to indeed be working.

but i take it the powersupply won't handle it right or wrong?

 

I do not know what you mean, but without the connector the communication should be very slow, and in practice the application will just divide as much as possible and do transfer data when needed. This transfer is very slow. This "SLI" is just from the driver so you should be able to do it like on the desktop.

From wikipedia:

 

it would not be that slow, I've done and conducted alot of tests for sli on desktop off course, and the board's do run pci-express, as i mentioned there were some fps loss in various games maybe 25% that's it, without a sli bridge

edit: keep in mind 280m mobile cards aren't equivalent to there desktop counterparts, a gtx 280m is = 9800 gt/gtx

 

i think it would be pretty dang slow.
consider that laptops MXM slot is not at all the same as a normal pci-e x16 slot, its like 2x at most i think.

Hmm i forgot we were talking about the 280m SLI for a second, don't get me wrong I'm not discouraging you from trying it.
If its you're going to specifically buy 2 280m to do the experiment, you should get the 3700m instead because of how much cheaper it will be.

You can probably get 2 3700m for 300$ totaly where 1 280m would cost more than that, lol.

 

If you will be trying to use 2 3700M's or 2 280M's better use a 65W CPU so that you don't end up drawing too much power from the motherboard.
These gpu's are all rated 75W but better be safe than sorry.

 

Good luck thgn and keep us inform.

 

I have 2 identical 3700m right now both with space for an SLI connector.

If someone tells me where I can get some connectors that fit, I will try soldering it to both of my cards.
I'd sell them for a good price or test them if anyone has a d900c in my area.

I don't think they would draw too much power unless you overvolted them because the 9800m GTX SLI is supported, correct?

 

there's AMD 3870 and AMD 4870 mxm2.1 cards. (used in AW M17)
I also agree that SLI and crossfire may be capable without cable. Some users installed 2x 3870 on a older AW m9750 without cable and enabled crossfire if I'm not wrong.

 

niffcreature, that has me intrigued, where do you live?

 

I have a 4850 mxm 2.1.
The only Clevo that supports it (or the 3870) is the m570tu AFAIK. Don't think it would be possible with the d900c but who knows

I live in the midwest, how about you?

 

Germany right now, but I'll be coming to Toronto come mid-February. Depending on where you live in the midwest (does Michigan still count to that?) We might be able to set something up. I wouldn't mind making my laptop available to test run the 3700s in sli, so if we can set something up that would be ace.

 

Hmm! I'll be in New Jersey then... not too far off.

but I do have to find the connectors.
edit: also someone should try to do the driver SLI trick first, even with the 8800m GTX and unplugging the SLI cable.

 

If you tell me what driver trick you're speaking off, I'll gladly try it

 

First make the tests with SLI and everything. Then remove the SLi cable and still keep the SLi enable in the driver. Make the tests again. You will get some warnings, but they say it will work. Then post the results so that we can compare.

 

No-one so far?