** The Official ASUS P5N-E SLI & Ultra 650i Thread **
- Thread starter torrentthief
- Start date
i didn't read the whole thread but this motherboard has issues with some basic DDr2 memory on auto settings that prevent dual channel or more than one stick from working without hangs when booting into windows.
To solve this set up your memory using manual settings in the m/b bios:
TCL; 5
TRCD; 5
TRP; 5
TRAS; 12
COMMAND PER CLOCK; 2
TRC; 23
SLI READY: Disabled
MEMORY VOLTAGE: 1.9v
For overclocking or performance memory try with the fsb/mem divider set to sync or 1:1
TCL; 4
TRCD; 4
TRP; 4
TRAS; 12
COMMAND PER CLOCK; 2
TRC; 22
(tRFC should be tRC + 2.)
MEMORY VOLTAGE: 2.1v
Further info for experimentation can be found here:
http://www.dslreports.com/faq/9222
To solve this set up your memory using manual settings in the m/b bios:
TCL; 5
TRCD; 5
TRP; 5
TRAS; 12
COMMAND PER CLOCK; 2
TRC; 23
SLI READY: Disabled
MEMORY VOLTAGE: 1.9v
For overclocking or performance memory try with the fsb/mem divider set to sync or 1:1
TCL; 4
TRCD; 4
TRP; 4
TRAS; 12
COMMAND PER CLOCK; 2
TRC; 22
(tRFC should be tRC + 2.)
MEMORY VOLTAGE: 2.1v
Further info for experimentation can be found here:
http://www.dslreports.com/faq/9222
Usually the best is the latest 1101 from asus web site, if you are stable & happy with an older one stick with it.
Got one of these recently with a intel 2160 dual core, both for £50+vat & its 3200 stable with reasonable temps on air with an artic pro7 - took me a couple of hours finding the best settings in the bios as it was doing all kinda weird hangs & crashes with budget elixir memory set to auto.
Current core voltage is 1.4, memory 1.9 & n/b needed a bit more.
New 1201 BIOS out:
Version12012008/08/22 update
DescriptionP5N-E SLI BIOS version 1201
1. Fix sometimes it will show incorrect frequency of FSB 1066MHz CPU during POST.
2. Remove CPU Multiplier option for ratio locked CPU.
3. Fix incorrect L2 cache info. Of certain CPU in the BIOS setup.
4. Support new CPUs, please refer to our website at: http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=P5N-E SLI
1. Fix sometimes it will show incorrect frequency of FSB 1066MHz CPU during POST.
2. Remove CPU Multiplier option for ratio locked CPU.
3. Fix incorrect L2 cache info. Of certain CPU in the BIOS setup.
4. Support new CPUs, please refer to our website at: http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=P5N-E SLI
Quick question - I'm moving my board to another machine, but I think I've misplaced the Q-Connector thing. Really useful piece of plastic.... I don't have the board in front of me right now - But without it, can I still connect the case leads for power, reset etc directly to the pins on the motherboard ? I hope so...
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There was once a time when there was no such Q-Connector.
Yup, just stick the leads directly onto the mobo pins. Job done!
This MOBO needs a fair bit of NB volts if you plan on a high FSB OC, ive got 1.7v on mine but its WCooled.
Just a note regarding 45nm Quad compatabilty on the P5N-E. Despite the manufacturer not officially supporting them, they do work.
Q9450 FULLY WORKING and recognised correctly on my P5N-E running either 1101 or 1201 bios
There are lots of fsb holes where the processor will not post, but I have successfully tested at the following settings.
Stock 1333fsb x8 = 2.67GHz
OC 1500fsb x8 = 3GHz
OC 1550fsb x8 = 3.1GHz
OC 1667fsb x8 = 3.33GHz
I can also get into Vista at 3.46GHz (1730fsb) but it is not stable. Northbridge requires 1.7v for 3.33GHz and over so it gets HOT.
So, try a quad in you old P5N-E (or 650i mobo) before buying a new motherboard.
Q9450 FULLY WORKING and recognised correctly on my P5N-E running either 1101 or 1201 bios
There are lots of fsb holes where the processor will not post, but I have successfully tested at the following settings.
Stock 1333fsb x8 = 2.67GHz
OC 1500fsb x8 = 3GHz
OC 1550fsb x8 = 3.1GHz
OC 1667fsb x8 = 3.33GHz
I can also get into Vista at 3.46GHz (1730fsb) but it is not stable. Northbridge requires 1.7v for 3.33GHz and over so it gets HOT.
So, try a quad in you old P5N-E (or 650i mobo) before buying a new motherboard.
this may seem like a stupid question but is this thread about the p5n32-e sli plus also? or is there a board called the p5n-e ive looked on the asus website but when i search it comes back with a site under maintance message but it searches my mobo fine :S
EDIT:
Think ive answered my question now as im sure the p5n32-e sli plus has a different southbridge chip to the north bridge where as this seams to have the same can someone conferm this?
thanks Greg
EDIT:
Think ive answered my question now as im sure the p5n32-e sli plus has a different southbridge chip to the north bridge where as this seams to have the same can someone conferm this?
thanks Greg
Just a question here - what setting did you use for LDT Frequency?
I find that if I overclock to an FSB of 1400+ I have to set this to 3x, as even 4x it becomes unstable in windows general use such as hard drive seeks and when I use the graphics card in a game for example, and 5x it doesnt even load windows.
Dont know what this does but I have a feeling its bottlenecking my system's overall bandwidth. Is it true that the LDT frequency should be equal to 1000 and that its that value multiplied by the bus speed?
I have never attempted changing the LDT setting. It is at default (5x). You may just be hitting some of the many fsb black holes this board has.1650fsb is a frequency that has worked well on every 45 and 65nm chip I have tried in my board. Perhaps lower your multi and try that.
Tip: when playing with oc settings remove the bios battery. If the board locks you just have to remove all power to perform a reset rather than fiddle with jumpers. Once you obtain your desired settings, put the battery back.
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Here are my final Q9450 BIOS settings. I turned speeds down slightly to 1642fsb to allow the NB to run at just 1.393v. Otherwise it gets insanely hot.
Boot Screen shows Q9450 @ 3.28GHz
Here you get to see my HDD's
Voltages
Frequency Settings
CPU Config (enabling C1E allows the CPU to run at 2.5GHz and reduced voltages when idle)
Chipset config
Memory Timings
Boot Screen shows Q9450 @ 3.28GHz
Here you get to see my HDD's
Voltages
Frequency Settings
CPU Config (enabling C1E allows the CPU to run at 2.5GHz and reduced voltages when idle)
Chipset config
Memory Timings
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you will only run 8 PCIe lanes per slot with two gfx cards on a 650i chipset based boards, probably not an ideal setup for two 9800gx2's. running two 9800gx2's is pretty ott and running them on a 650i board is pretty compromising.
What about just one will that be ok. If I buy it im just going to get 1 9800GX2, thought later on I could add another one.