** The Official ASUS P5N-E SLI & Ultra 650i Thread **

silversurfer said:
27mb/s for reading and writing to the same drive at once is ok
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Why so slow from the same drive? So what speed would it be reading and writing from one drive to another?
 
If its copying to another drive then thats half the workload (per drive), so I'd expect twice the speed, depends which of the two drives is slowest.

Thats why raid is good, theres always more then 1 drive and controller involved so hopefully you get twice the speed.


I'm presuming raid doesnt work on the ide controllers for this board just sata. Dont make me actually connect a fdd to this thing
 
Ah right.

Also about the SB on this mobo, does it really need cooling? Apparently it burns to the touch and if your doing overclocking it needs some cooling.
 
willhub said:
Ah right.

Also about the SB on this mobo, does it really need cooling? Apparently it burns to the touch and if your doing overclocking it needs some cooling.
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I don't believe it is necessary - but putting a low heatsink on it is cheap and may be an idea for peace of mind. I'm going to do this myself. Anything too tall blocks the 2nd PCI slot and you can't run SLI, if that is a concern.
 
I just noticed you were transferring a shed load of files, the OS is probably loading 1 in to ram then saving to the other partition, then doing the next file. This will make the drive heads flip between partitions as many times as you have files and be slow.
a single file will be much quicker as it will load in a big chunk before saving to the other partition.

having a full and/or fragged drive won't help either, but I suspect that isn't the problem as you're getting 27MB/s, which is actually 54MB/s because the drive is moving the data twice.

if the drive has an average seek time of 8ms, your 40,000 files will take 2*40000*8ms just moving the heads (10 minutes) to locate file positions. assuming the filesystem information on the drive is on average 4ms away, you end up with another 5 minutes used updating the filesystem
 
Can someone clarify to me if we can actually use SLi to its full capabilities on the Asus P5N-E Sli? Or would I need to get a 680i board for that? Somepeople have said you can't run dual 8800GTX's in this board cos one PCI-E is 8x the other 16x, but others have said it will work fine?

It may have been answered on here already, but im not going thru 41 pages :)
 
keogh said:
Can someone clarify to me if we can actually use SLi to its full capabilities on the Asus P5N-E Sli? Or would I need to get a 680i board for that? Somepeople have said you can't run dual 8800GTX's in this board cos one PCI-E is 8x the other 16x, but others have said it will work fine?

It may have been answered on here already, but im not going thru 41 pages :)
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From what ive read, the 2 x 8 slots dont hold the Sli back hardly at all, i think there is a slight drop in spead but its not noticable.
 
pegasus1 said:
From what ive read, the 2 x 8 slots dont hold the Sli back hardly at all, i think there is a slight drop in spead but its not noticable.
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Really? Is anyone running sli who can prove this? I got a Dell 3007WFP-HC now, so running games at 2560x1600 could be a bit stressful to say the least on a single GTX.

If I do buy this I plan on upgrading to a quad and 4gb at the same time aswell... if sli on this board is no good then I will get the BFG 680i board in the same order. But if I can get away without buying another board then that will save a few quid!
 
I found a few comparissons between 2x PCI-Ex8 and PCI-Ex16 boards in SLI, but don't think I can post them here because there are some competitor links on the sites.

They basically say that with 2x 8800GTX's there is very little difference between 8x and 16x SLI. Modern graphics cards are only just pushing the 8x boundries.
 
keogh said:
Really? Is anyone running sli who can prove this? I got a Dell 3007WFP-HC now, so running games at 2560x1600 could be a bit stressful to say the least on a single GTX.

If I do buy this I plan on upgrading to a quad and 4gb at the same time aswell... if sli on this board is no good then I will get the BFG 680i board in the same order. But if I can get away without buying another board then that will save a few quid!
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I'l have a google around, i cant remember where i read it, might have been on Toms Hardware Guide.
 
We had heard rumors that the 8800 GTX cards would thrive on the dual x16 capable 680i chipset but in looking at the results in our two test games it appears there is very little difference in the scores between the two nForce 600i boards. We did not have any issues running our 8800 GTX SLI setup on the dual x8 capable 650i board and only in the synthetic 3DMark benchmarks did we see any true separation between the two setups. Those results favored the 680i over the 650i by 8% in 3DMark06, 6% in 3DMark05, and in 3DMark 2001 the 650i actually finished about 4% ahead of the 680i. At this time, the current games we have tested will perform almost equally on either board in 8800 GTX SLI operation at 1600x1200. We also tested at 1920x1200 resolutions with the same results between the two chipsets. We still need to complete testing at 2560x1600 with the 650i chipset but considering the very small increase in performance in SLI mode with our test setup, we highly recommend the purchase of a single 8800 GTX for today's games and to forgo 8800 GTX SLI operation at this time.
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From an AnandTech artice
 
Am I missing something ?
On the OCUK site, for the following card

Asus GeForce 8800 GTS HTDP 320MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail
http://www.overclockers.co.uk/showproduct.php?prodid=GX-106-AS&groupid=701&catid=56&subcat=927

It says
"Note: These cards require PCI-E x16 slots, they will not function in a x8 slot so for SLI you need dual x16 mainboard."

So this implies that two 8800GTS will not run AT ALL in this board ???

I'm not about to do it anyway, just curious
 
The GTS and the GTX will run fine in 2x8 slots, however, unless you are using IDE drives the 2nd card will not fit as it interferes with the SATA ports
 
Dappy said:
Latest BIOS has been released: 0703

P5N-E SLI BIOS 0703
1. Enhance compatibility of certain memroy module.
2. Support new CPUs, please refer to our website at:
http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=P5N-E SLI
3. Add support for SLP 2.0.
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I saw one post which suggested that for one person, this had solved the 4 x 1GB memory hole between 720 - 840 approx, and he booted at 800. Not sure I want to put it to the test... if you hit the "hole", it means opening up the case, removing a stick of ram, changing BIOS settings, and then re-fitting the 4th stick. A bit of a hassle.
 
I tried the 0703 BIOS just now, complete rubbish (on my system). With the memory compatibility improvements I was hoping it might let me run at 1T, so I gave it a whirl. However it wouldn't even post with my normal settings (1428 FSB, memory at 803/4-3-4-12 2T) and locked up with the memory at 715.

Gone back to 0608 now - had to flash from a USB key as the windows app wouldn't let me use an older version to update :rolleyes:
 
Does this mobo not like E6600's at X7 multiplyer and 1900Mhz FSB (475 or something), as I set the Multiplyer of the CPU to 7x, then the FSB to 1900, 950Mhz ram, 2.2V, 4-4-4-12, and the PC would not boot, and when it did boot, my CPU Freq was at 1.86Ghz :confused:, so I thought, hmm maybe it is the ram, so put it back to the stable 800Mhz 4-4-4-12, 2.2V settings and still nothing, works fine at 3.2Ghz, 1600FSB and 800Mhz ram.

I think it booted at 1904Mhz, but after that would not boot again.
 
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