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2008-02-26 09:53:14
prototype
Member
+52|6589
Asus P5N-E SLI nForce® 650i SLI

After I got my system I read somewhere that the 650i boards do not support true SLI since the MOBO only allows 8 streams to be used instead of 16 streams which is needed for true SLI.

My question is what does this mean?

If I put two 8800GT cards in SLI mode on my 650i MOBO they wont run or wont run as well as a single card by itself?

would it still be worth it to even put two cards in SLI if they wont run at full speed like they would on a 680i board?

500 Watt -- NZXT PF-500 Power Supply
Windows XP HOME 32BIT
Intel Core 2 Duo Processor E6550
Asus P5N-E SLI nForce® 650i SLI
2GB Corsair XMS DDR2-800 PC6400 (2x1GB)
EVGA  NVIDIA GeForce 8800GT 512MB
320 GB HD [Serial-ATA-II, 3Gb,16M Cache
20'' Widescreen
2008-02-26 09:57:03
Bertster7
Confused Pothead
+1,101|6860|SE London

That doesn't mean it isn't true SLI.

Newer, faster PCI-E graphics cards use 16 lanes to transfer data. Older PCI-E graphics cards use 8 lanes. The 680i has 2 16x slots and a 8x slot. The 650i has a 16x slot and an 8x slot (though all the slots mentioned on either board have 16x connectors). This means you can run SLI with any compatible PCI-E GPUs, but it won't run as effectively for more modern graphics cards on a 650i.

Would not be worth it. Also, that mobo is a bit rubbish (I've had several of them with serious memory faults - the Gigabyte 650i boards are much better and the P35 is a great chipset too, the 780i would be the best bet for SLI these days, no point in getting a 680i). You'd be much better off with a better one. The Asus Maximus Formula is pretty nice.

Last edited by Bertster7 (2008-02-26 10:00:34)

2008-02-26 10:03:23
prototype
Member
+52|6589
what do you mean by memory faults?

what are some symptoms of this?

so you are saying that I would not see a significant performance increase with a second 8800GT ?
2008-02-26 10:09:29
Bertster7
Confused Pothead
+1,101|6860|SE London

prototype wrote:

what do you mean by memory faults?
I mean memory faults. Unrecognised RAM, crashing, instability running RAM in all 4 slots. You know, memory faults.

prototype wrote:

what are some symptoms of this?
Not being able to boot with RAM at stock speeds and voltages, instability, crashing, failing to POST etc.

prototype wrote:

so you are saying that I would not see a significant performance increase with a second 8800GT ?
Not significant enough to make it even close to being worthwhile.
2008-02-26 10:15:21
prototype
Member
+52|6589
I had those symptons when I first got my PC put together and had to RMA it back to get a new mobo.

works fine now but your giving me flashbacks to the trouble it did cause me.
2008-02-26 10:22:20
GC_PaNzerFIN
Work and study @ Technical Uni
+528|6692|Finland

Bertster7 wrote:

I mean memory faults. Unrecognised RAM, crashing, instability running RAM in all 4 slots. You know, memory faults.

Not being able to boot with RAM at stock speeds and voltages, instability, crashing, failing to POST etc.
You pretty much described my experiences with nforce motherboards.
3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8
2008-02-26 11:01:29
Zimmer
Un Moderador
+1,688|7034|Scotland

Bertster7 wrote:

That doesn't mean it isn't true SLI.

Newer, faster PCI-E graphics cards use 16 lanes to transfer data. Older PCI-E graphics cards use 8 lanes. The 680i has 2 16x slots and a 8x slot. The 650i has a 16x slot and an 8x slot (though all the slots mentioned on either board have 16x connectors). This means you can run SLI with any compatible PCI-E GPUs, but it won't run as effectively for more modern graphics cards on a 650i.

Would not be worth it. Also, that mobo is a bit rubbish (I've had several of them with serious memory faults - the Gigabyte 650i boards are much better and the P35 is a great chipset too, the 780i would be the best bet for SLI these days, no point in getting a 680i). You'd be much better off with a better one. The Asus Maximus Formula is pretty nice.
Bingo. I have that mobo. It has its problems.
2008-02-26 12:52:25
Bertster7
Confused Pothead
+1,101|6860|SE London

GC_PaNzerFIN wrote:

Bertster7 wrote:

I mean memory faults. Unrecognised RAM, crashing, instability running RAM in all 4 slots. You know, memory faults.

Not being able to boot with RAM at stock speeds and voltages, instability, crashing, failing to POST etc.
You pretty much described my experiences with nforce motherboards.
Not all nForce motherboards. Which ones have you had trouble with?
2008-02-26 12:55:04
GC_PaNzerFIN
Work and study @ Technical Uni
+528|6692|Finland

Bertster7 wrote:

GC_PaNzerFIN wrote:

Bertster7 wrote:

I mean memory faults. Unrecognised RAM, crashing, instability running RAM in all 4 slots. You know, memory faults.

Not being able to boot with RAM at stock speeds and voltages, instability, crashing, failing to POST etc.
You pretty much described my experiences with nforce motherboards.
Not all nForce motherboards. Which ones have you had trouble with?
nforce 4 sli, 650i ultra, 650i SLi...
3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8
2008-02-26 13:04:25
Bertster7
Confused Pothead
+1,101|6860|SE London

GC_PaNzerFIN wrote:

Bertster7 wrote:

GC_PaNzerFIN wrote:


You pretty much described my experiences with nforce motherboards.
Not all nForce motherboards. Which ones have you had trouble with?
nforce 4 sli, 650i ultra, 650i SLi...
Which boards? Not which chipsets.
2008-02-26 13:54:06
GC_PaNzerFIN
Work and study @ Technical Uni
+528|6692|Finland

Bertster7 wrote:

GC_PaNzerFIN wrote:

Bertster7 wrote:

Not all nForce motherboards. Which ones have you had trouble with?
nforce 4 sli, 650i ultra, 650i SLi...
Which boards? Not which chipsets.
Asus A8N-SLI Deluxe, eVGA nForce 650i Ultra T1 and Asus P5N32-E SLi Plus.

Last edited by GC_PaNzerFIN (2008-02-26 14:08:38)

3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8

 

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