BFG nForce 680i SLI test...

[zert]

If u got a ECS , keep us updated how it works !

ECS has the same board as eVGA and BFG (and biostar )

[Dumo]

Update...

[Dumo]

Heres testing 8800GTX SLI....PCI-E @130



Poor old Vapo barely keep up @-31C evap @load
All I have to do...wear BFG T shirt and use its 1000W psu, and I'm "brand coordinated" ....B/way all run ok. with a single Zippy850W...

[Bootsy]

I just got up and running last night. I still have no idea what half the stettings in the bios do.

xp64 bit with 4gbs of ram running 1:1, sandra64 bandwith is only efficiency is only 40%.Any help on that?

[dinos22]

can't wait for DFI and ASUS 680i offerings

tweaking these chips (memory controllers) will be as big a deal as AMD in K8 for Oscar and other engineers..........it's also good to know Nvidia is working hard to develop/improve bios files. .........i'll be getting my reference mobo soon and will get stuck into SuperPI benchmarking and report my observation to nvidia......i reckon i'll solely work on SPI performance as that will be key to get these boards past Intel chipset in all benchmarks i feel...... SPI's the way to go boys

[phelan1777]

no two boards or systems will have the same performance even if they both have the exact same parts and exact same timings.

YES! someone else that thinks this as well............

[fhpchris]

tweaking these chips (memory controllers) will be as big a deal as AMD in K8 for Oscar and other engineers..........it's also good to know Nvidia is working hard to develop/improve bios files. .........i'll be getting my reference mobo soon and will get stuck into SuperPI benchmarking and report my observation to nvidia......i reckon i'll solely work on SPI performance as that will be key to get these boards past Intel chipset in all benchmarks i feel...... SPI's the way to go boys

They have a long way to go to beat 975.

[Dumo]

Conclusion......8800 in SLI -> Nforce 680i and for single 8800 -> 975X...

[dinos22]

Conclusion......8800 in SLI -> Nforce 680i and for single 8800 -> 975X...

until RAM performance is sorted out

[gr8golf]

CompUSA has this board for $249 after rebates. Not bad - they also have the e6400 for $209.

[Phil The Greek]

until RAM performance is sorted out

After folowing Kunaak's sugestion,I lowered TRC from 33(default) to 6 and I got pi32M scores very close to 975.Memory running at 1244Mhz @5-4-4-12(2T)

[Blacklash]

Question:

Will the Scythe Infinity and Mine secure properly on the Evga|BFG 680i motherboards or do the caps get in the way?

I am asking to help someone else.

[pentium777]

Question:

Will the Scythe Infinity and Mine secure properly on the Evga|BFG 680i motherboards or do the caps get in the way?

I am asking to help someone else.

http://www.xtremesystems.org/forums/...d.php?t=123329

Post #7 and #8 have pictures of my Scythe Infinity. I had to mod it slightly with dremel for 975 board to ensure it cleared caps, it does also brush up against the chipset HSF but still will mount without damaging or degrading the cooling quality.

Can't help on if the Mine will work though.

[Blacklash]

http://www.xtremesystems.org/forums/...d.php?t=123329

Post #7 and #8 have pictures of my Scythe Infinity. I had to mod it slightly with dremel for 975 board to ensure it cleared caps, it does also brush up against the chipset HSF but still will mount without damaging or degrading the cooling quality.

Can't help on if the Mine will work though.

Thank you. I will pass this information on.

[SLi_dog]

Hey Dumo,
Are you getting wierd FSB memory readouts when using lower than default CPU multipliers?

I've flashed to P20 and am still having the same issue.
The board is topping out at 413FSB which I think is memory related because though the memory is set to 815Mhz in BIOS, it is showing up as 1238Mhz on some readings.




Earlier example below with settings 1630FSB QDR "linked" & "sync" (RAM @815) with 6x CPU multiplier.

[Dumo]

@SLI...I haven't test it with Crystal yet. So far it matched on CPUZ and Ntune/monitor.

[dinos22]

After folowing Kunaak's sugestion,I lowered TRC from 33(default) to 6 and I got pi32M scores very close to 975.Memory running at 1244Mhz @5-4-4-12(2T)

hey phil that's good to know

i'll be tweaking a 680i reference board for SuperPI performance next week with a full report/findings

you have some great RAM there wow
fingers crossed my B1 Step5 CPU works in the damn thing

[SLi_dog]

@SLI...I haven't test it with Crystal yet. So far it matched on CPUZ and Ntune/monitor.

Interesting, for me the FSB matches in nvtune/monitor but not the RAM. nvtune suggests 815Mhz but Nvidia monitor suggests 1238Mhz?

I can't make any changes to FSB in nvtune either, not up or down.

[X.T.R.E.M.E_ICE]

Interesting, for me the FSB matches in nvtune/monitor but not the RAM. nvtune suggests 815Mhz but Nvidia monitor suggests 1238Mhz?

I can't make any changes to FSB in ntune either, not up or down.

Ntune works fine for me most of the time. Ntune exe crashes sometimes when you click exit.

I think ntune is the better program to beleive. you could use the latest version of CPUz as it reports ram settings and speed now.

[Phil The Greek]

hey phil that's good to know

i'll be tweaking a 680i reference board for SuperPI performance next week with a full report/findings

you have some great RAM there wow
fingers crossed my B1 Step5 CPU works in the damn thing

Yes and I also hope that his theory on the fsb speed botlenecking the memory will proove right.Then higher fsb's might give us even better ram bandwith.The 6600 I had,was stoping at ~440fsb on both 975 and 680i chipsets.I hope that the new 6700 I am waiting will prove more fsb friendly.
I am also waiting a Striker Xtreme,so I will be able to compare with EVGA's board on same cpu.Thanks for your good words on my ram.Its Supertalent pc6400C5.I had heard they were good but nt this much.
Looking forward for your spi research on 680i.I also beleave that spi shows the way

[Dumo]

Heres the 2nd. board with..
8800GTX / Team Xtreem 8000C5 OPB ed / Zippy P6850 / Win XP Sp2



Bios settings...

[Dumo]

Results with memtest...

[Dumo]

3Ds...Stock GTX..

[bachus_anonym]

DDR2-1300 done, eh Dumo?

But I have to ask, how much effort did you put into that DualSPi32M run? I hate to say it, but 17:50 is quite sad, even for 680i , unless you had a load of crap running in the background? You should do a lot better than that, even with your current secondary memory timmings - probably a bit above 16:00. Can you do TRRD=3 and TWR=4?

[Dumo]

Yep, Bachus the 32m run just set and go, no tweaks.