NVIDIA SLI

[WilHarris]

This thread will be the single discussion thread for the multiple articles we post this week

Part 1 - The motherboards
http://www.bit-tech.net/hardware/200...sli_pt1/1.html

Part 2 - GeForce 6800 Ultra and GeForce 6800 GT
http://www.bit-tech.net/hardware/200...sli_pt2/1.html

Part 3 - GeForce 6800 Std and GeForce 6600 GT
http://www.bit-tech.net/hardware/200...sli_pt3/1.html

Part 4 - CPU Selection
http://www.bit-tech.net/hardware/200...sli_pt4/1.html

Part 5 - Tying Loose Ends
http://www.bit-tech.net/hardware/200...sli_pt5/1.html

[unrealhippie]

nice stuff, ofcourse if you can get a bridge you can mod the Ultra-DR to SLI-DR.

[webchimp]

The layout of the DFI board is awkward if you want to watercool the motherboard chipset, but if anyone's interested there are some solutions:

http://www.dfi-street.com/forum/showthread.php?t=11253

http://www.mips-computer.de/

With the arrival of the new Venice and San Diego cored socket 939 cpu's I am sorely tempted to upgrade my ageing Athlon XP Barton based PC. However, it seems there is always something better just over the horizon. Do I wait for the dual core A64's, what about Socket M2?

Is it me or do the life spans of CPU sockets seem to be getting shorter?

[zr_ox]

Thanks that review was just what I was looking for

Just one question:

"Do you guys have any inside information regarding any attempt by ATI to offer an alternative to SLI?"

okay two questions

"When will the AMD 64X2 Processors start shipping?"

Cheers

[The_Pope]

zr_ox: I'm sure you'd understand if I said that we couldn't comment on any "inside information" that we may or may not have regarding ATI's new stuff. Unless of course it's information that's in the public domain - otherwise the NDA's prevent us from leaking the info beforehand.

AMD X2 chips, if I remember rightly, are "June", but you might want to read around to make sure that's accurate.

As for ATI SLI? Well, I hear they're working on some sort of solution, and you can be sure we'll be putting it through its paces just as soon as we get boards from ATI

[zr_ox]

Thats Great, Thanks "The_Pope"

I better start saving then

[Tim S]

AMD Athlon X2 is due to ship 'in June' - that's all that AMD will tell us at the moment, and there's no specific date set in stone for availability. I doubt they're going to be widely available until next year, though.

ATI's SLI... it's just rumours at the moment, there's no date for launch and no date for availability confirmed anywhere.

webchimp:

yes it's possible that the life cycle of sockets is dropping, and I don't particularly agree to the socket tennis that we're playing at the moment. However, I'd hope that M2 will have enough power to last a little longer than Socket 939.

We're not going to see that available for a while yet though IMO.

[Awoken]

Originally Posted by webchimp

The layout of the DFI board is awkward if you want to watercool the motherboard chipset, but if anyone's interested there are some solutions:

http://www.dfi-street.com/forum/showthread.php?t=11253

http://www.mips-computer.de/

With the arrival of the new Venice and San Diego cored socket 939 cpu's I am sorely tempted to upgrade my ageing Athlon XP Barton based PC. However, it seems there is always something better just over the horizon. Do I wait for the dual core A64's, what about Socket M2?

Is it me or do the life spans of CPU sockets seem to be getting shorter?

Whats the thread on those blocks? Has anyone seen a custom block for the DFI which will accept 1/2" Barbs? I'm still torn over the motherboard choice...on the one hand the DFI provides a lot of power and a heady overclock but on the other it's noisy, the A8N is £95 (£33-35 cheaper than the DFI SLI-D), the A8N has room for chipset watercooling and has more space between the PCI-E slots for watercooling. Its really tough as I love silence and with SLI watercooling seems to be the only way to achieve a nice quiet, powerful machine. Oh well I've still got the summer/autumn to make up my mind

[Tim S]

I don't think the DFI heatsink/fan is all that loud, providing the variable fan is configured correctly in BIOS.

[webchimp]

I believe the MIPS DFI LANPARTY Freezer waterblock has 1/4" thread which should accept 1/2" barbs like these: http://www.watercoolingshop.com/cata...roducts_id=128

However, the site is in German, so I'd contact MIPS first and check that the block will accept a barb with a 1/4" BSPT thread. The block appears to be very shallow, so that it fits under the grapics card in the top PCI-E slot. It may be necessary to file a little off the thread end of the barb so that it doesn't protrude too far through the lid of the block.

Alternatively, a BSPP barb with an "O" ring washer may work better: http://www.watercoolingshop.com/cata...roducts_id=167. If it's necessary to shorten the thread end there's no taper to worry about and no messing about with PTFE tape.

[Tim S]

that block looks pretty sexy, and it'd be a damn good addition to one of these LANPARTY nF4 motherboards.

[kickarse]

Very good review guy! I appreciate the in depth, straight forward information. Just enough information to get you in the know and what you should buy without too much to get your lost on tangent details.

[Da Dego]

As usual, great job, biggles. Well covered, and a nice comparative look.

[Tim S]

Part two is now published for your viewing pleasure

http://www.bit-tech.net/hardware/200...sli_pt2/1.html

[Darkedge]

ARRGH!! your graphs make it a PAIN to see whats going on.. if the game isn't running at identical settings PLEASE have a gap between the graph bars to show this. Don't lump them all together.

at a glance SLI seems pretty pointless but when i go over this article with a fine toothed comb to work out what it actually is trying to say that might, just might change.

[Tim S]

that's why I've spent time highlighting the settings used for each particular video card combination in the text. If you make comparisons between the bold text and look at the graph, it makes sense.

[Awoken]

Great article! Looking forward to part 3.

Has anyone tested nVidias list of games which benefit from SLI? The most recent seem to appear in reviews but nothing else. Has there been any indication as to when the list of SLI supported titles will grow?

[Tim S]

I've also added in a page with a table 'best-playable' settings for each video card combination, just for those who only look at the pictures.

http://www.bit-tech.net/hardware/200...li_pt2/10.html

[Firehed]

How come in SC:CT, the HDR option doesn't show up at all for me? I've got all the same settings except for res, and 6800GTs in SLI (@Ultra).

Come to think of it, could be game version. I have whatever shipped, not the newest patch. Although I didn't think Chaos Theory just "patched in" HDR like FarCry.

/edit - meh, as soon as I post, I see it. Go figure.

[Fly]

Nice work Tim, you are my hero.