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

WJA96 said:
To get over 400FSB I need the 1.539V setting on the Northbridge. To get over 450 FSB I need the 1.793V setting, at which point the air cooled NB heatsink is warm enough to cook on. You might need to add an extra click or two of voltage to go over 400FSB - and unlinked does seem to work better in that region. Once over 400FSB you seem to need to be careful of the QSFB figure - try not to end in a 0. I don't know why, it just doesn't like QFSB's ending in 0 :confused:
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Hm, just tried 1877 QFSB (3.28GHz) with 1.539v on the northbridge and Orthos has been running 30 mins now without issue! Temps are steady as a rock at 52c. :D
 
WJA96 said:
The one thing you haven't mentioned is whether you are running linked or unlinked and if you are running linked, what is your RAM:FSB ratio set to? And is your RAM completely set to AUTO or have you set it up in Chipset?
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:/

Forgot that sorry mate. It is running unlinked. I have manually whacked in a figure of 800MHZ. All of my ram timings are auto too.

I have the 146 pounds Geil ram that is here

It doesnt seem to want to be stable or boot much past 2.8 GHZ. I am not certain if it is either:

My PSU isnt good enough (only 400 watt, PLUS 20 pins... roll on RMA the corsair tbh)

Stock CPU cooling

Me being silly and having the wrong settings?

Bad clocking cpu/mobo (hopefully NOT this one :( )

Any suggestions?
 
Dark_Angel said:
My PSU isnt good enough (only 400 watt, PLUS 20 pins... roll on RMA the corsair tbh)
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It's unlikely unless you've got loads of hard drives and/or loads of graphics cards

Dark_Angel said:
Stock CPU cooling
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Again, I don't know if you noticed, but OC_A64 did 3.6GHz or somehing daft on stock cooling, but it's not ideal.

Dark_Angel said:
Me being silly and having the wrong settings?
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Silly? No, more than likely you're not aware of a gotcha yet!

Dark_Angel said:
Bad clocking cpu/mobo (hopefully NOT this one :( )
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The CPU's are definitely doing better than 3GHz and the boards are definitely much beter than 2.8GHz

Dark_Angel said:
Any suggestions?
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Try it on linked
reduce the multiplier to 8x
Set the CPU on AUTO+100mV
Set your RAM to 2.15V
Set the NB to 1.39V

Buildup slowly from 266MHz (1066QFSB) in jumps of about 50 QFSB and after every adjustment, let it run Orthos blend for 25-30 minutes. We really need to ascertain whether the RAM is carping out, or the CPU.
 
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I will try that in a few moments (after I eat and My PC finishes doing a few bits)

But, I notice my ram is always about the 400FSB mark (800 DDR2) because I constantly have it manually set to 800 MHZ.

Lastly you said set "set your ram on auto 100mv, and then put it on 2.15" I cant do that, there is only one ram voltge option I think...

Not wishing to sound rude or anything like that you understand, I just a bit of a noob to Conroe clocking, so wished to clarify a few things :)
 
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Dark_Angel said:
I will try that in a few moments (after I eat and My PC finishes doing a few bits)

But, I notice my ram is always about the 400FSB mark (800 DDR2) because I constantly have it manually set to 800 MHZ.

Lastly you said set "set your ram on auto 100mv, and then put it on 2.15" I cant do that, there is only one ram voltge option I think...

Not wishing to sound rude or anything like that you understand, I just a bit of a noob to Conroe clocking, so wished to clarify a few things :)
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No, you're not the one who should be apologising for not trying to sound rude, I was wrong and I can only apologise for that.

The first one should have said CPU on AUTO+100mV, then RAM at 2.15V.

Every single CPU, pair of RAM sticks and motherboard is different. Some of it is in the manufacturing, some in the application of the AS5 and the heatsink on the CPU. You may think you have superb airflow in your case, but it just by-passes somewhere maybe? You need to feel your way into it.

The two possibilities are (1) lock the RAM and unlink the CPU but that's not working very well for you at the moment, so try linking them and see if you can get it a bit higher with a reduced multiplier.

I'm also going to suggest that you memcheck the RAM as the GeIL is doing some weird things at the moment - some peopel are reporting that it doesn't like 2.1V, some are reporting that it won't run at it's rated speeds. A lot of it is being RMA'd at the moment.
 
I mentioned before that I had heard somewhere that the black slots were better.

Now I am managing ok in the Yellow slots but if you look here on the asus forums and here on the ocz support forums, it is mentioned.

I will have a look tonight to see if this is any better for me but it's maybe woth a shot for you.
 
Well, after a while of experimenting, I have come up with some strange results.

First up. with a multi of 8, and the ram in sync mode, I once again can't get much past 1250MHZ.

If I nudge the voltage up to the NB, then that helps a little to get in to windows.

I am thinking that it is heat on the north bridge/CPU OR that the voltages just aren't enough and it would be better if I had the 520W PSU. I am thinking of getting the PSU out of the box, and trying it. The only problem with the PSU is the noise, so it will be fine to try overclocking with it I imagine.

It is really strange though :/

As for the RAM, I thought that they had to be in the alternating slots?

Like for example

Yellow Black Yellow Black
RAM....RAM...blank..blank

I didnt think you could run it in black/black or whatever, because it wouldnt be in dual channel?
 
Dark_Angel said:
Well, after a while of experimenting, I have come up with some strange results.

First up. with a multi of 8, and the ram in sync mode, I once again can't get much past 1250MHZ.

If I nudge the voltage up to the NB, then that helps a little to get in to windows.

I am thinking that it is heat on the north bridge/CPU OR that the voltages just aren't enough and it would be better if I had the 520W PSU. I am thinking of getting the PSU out of the box, and trying it. The only problem with the PSU is the noise, so it will be fine to try overclocking with it I imagine.

It is really strange though :/

As for the RAM, I thought that they had to be in the alternating slots?

Like for example

Yellow Black Yellow Black
RAM....RAM...blank..blank

I didnt think you could run it in black/black or whatever, because it wouldnt be in dual channel?
Click to expand...

no it's yellow+yellow or black+black for 2 sticks.
 
For dual channel (from what I read in the manual),

"Supports one pair of modules inserted into either the blue (should state yellow) slots or the black slots as one pair of Dual-channel memory configuration."

In other words, you should be putting your 2 sticks on ram in either the yellow or black slots, not one in each.

I have mine in the yellow slots running 400FSB 1:1; some people say they are having better luck using the black slots.

I'd try both if I were you.

JP
 
HI.

Just build a new rig bought most parts from OcUK, fantastic service :D

Im having an odd problem with this motherboard though...

Basically when I click on the "shutdown" button, the one that puts the PC into suspend mode, the PC begins to go into to suspend. The screen goes black and then a few seconds after it seems to totally crash in a bad way. There is a continuous beep from the system speaker and the power led flashes. I need to completely unplug PC before I can boot again. Then it starts as if it is comming out of suspend rather than a normal boot.

I have flashed to the latest bios, 0401? And everything seems to be ok, apart from this.

Any ideas?

Thanks :)
 
Finally got round to doing a proper Orthos run on my setup, cba doing a 12h as I don't sleep that long. :p I'll do a 12h run when I work a 12h shift next. :)

 
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