ASUS P5W DH - Problems + Fixes Thread

[mikepaul]

Corrupted rar files are in my experience symptoms of the on-board network not liking the overclock. Here I can overclock my q6600 to fsb 350 but lage rar files over the local network are unusable. Around 340 things are much better. I tried everything I could think of raising all kind of voltages, but never found anything that improved matters.

Well, that's bad since all I did was set things to a stock (for a 45nm) 333 FSB. That's better than 290, but hardly an official OC.

Maybe there are reasons the BIOS isn't helping run the 1.02G boards with 45nm CPUs at stock...

[bodka]

Just wondering something:

Anyone know if the C1 stepping of QX9650 is supported (like the C0 steppping is?) Or the QX9770...

C1 stepping for QX9650 is supported. I got that for Asus tech support.
Qx9770 is not supported.

[tomcug]

I need some help now. Today I did some benchmarks at 425MHz with memory voltage at 2.2V. Tomorrow I want to do some testing at 450MHz. But I need to set memory voltage to 2.4V for this setting to work. That's why I'm asking if there's any way to lower this voltage and keep the board stable? Thanks in advance.

[asham]

Hi!

I get a 404 page not found error message when I try to load up the F.A.Q at asus.com. Perhaps you peeps can help me instead?

Does this board support booting from USB? I have a USB pen-drive but I can't get the computer to boot from it. The latest BIOS is installed (2801)!

Thank you for your help.

[lawrywild]

Try changing the usb emulation options to floppy, hdd etc.

[PaVi90]

Hi all,
I have just installed a G.Skill dual channel kit on my p5w dh deluxe. Every module is 2GB, so the kit offers a total capacity of 4GB.
But there are some troubles:
- with only a module, all works fine: with vdimm and timings default (2.1V and 5-5-5-15) no problem; windows vista 32bit boots normally;
- with the two modules (in dual channel, into black slots) windows try to boot but after a few moments a very fast BSOD screen appears during boot. Also increasing the vdimm to 2.2V the problem doesn't disappear.

I have also tried to enable the memory remap feature: so the motherboard recognizes 4GB (instead of 3,2) at boot but with this setting BSOD with Vista. Also disabling the memory remap feature, there is the same problem: with two modules vista doesn't perform the boot but a bsod appears.

How can I solve the problem?

Thanks in advance!!

[bodka]

Hi all,
I have just installed a G.Skill dual channel kit on my p5w dh deluxe. Every module is 2GB, so the kit offers a total capacity of 4GB.
But there are some troubles:
- with only a module, all works fine: with vdimm and timings default (2.1V and 5-5-5-15) no problem; windows vista 32bit boots normally;
- with the two modules (in dual channel, into black slots) windows try to boot but after a few moments a very fast BSOD screen appears during boot. Also increasing the vdimm to 2.2V the problem doesn't disappear.

I have also tried to enable the memory remap feature: so the motherboard recognizes 4GB (instead of 3,2) at boot but with this setting BSOD with Vista. Also disabling the memory remap feature, there is the same problem: with two modules vista doesn't perform the boot but a bsod appears.

How can I solve the problem?

Thanks in advance!!

What is FSB : DRAM? What FSB ? Are u overclocking?
U can try changing ur RAM ratios.
Did u try both modules separately?

Check your RAM with Vista's Memtest utility at bootup.

By anychance if u have WinXP, is that working OK?

[tomcug]

PaVi90, you need to tell me what is your current BIOS setting. I bet that you need to increase your MCH voltage.

[PaVi90]

What is FSB : DRAM? What FSB ? Are u overclocking?
U can try changing ur RAM ratios.
Did u try both modules separately?

Check your RAM with Vista's Memtest utility at bootup.

By anychance if u have WinXP, is that working OK?

PaVi90, you need to tell me what is your current BIOS setting. I bet that you need to increase your MCH voltage.

BIOS is 2602; all voltagex except vcore and vdimm are auto; pci and pci-express are fixed to 33mhz and 100mhz.
The BUS frequency is around 320 MHz (original 266, due to E6700). However at this bus frequency no problem with the cpu: it is very very stable.
I have also tried to change the slot, one module per time,... but nothing done...

Thanks a lot for your replies!!

[tomcug]

BIOS is 2602; all voltagex except vcore and vdimm are auto; pci and pci-express are fixed to 33mhz and 100mhz.
The BUS frequency is around 320 MHz (original 266, due to E6700). However at this bus frequency no problem with the cpu: it is very very stable.
I have also tried to change the slot, one module per time,... but nothing done...

Thanks a lot for your replies!!

Okay, so you need to use those settings:
DRAM Frequency: DDR2-800MHz
Memory Voltage: 2.20V
MCH Chipset Voltage: 1.65V
ICH Chipset Voltage: 1.05V

I think that with those settings you should be stable for sure. Don't forget to set right timings (5-5-5-15-5) too. It would be also good to know what is your CPU.

[PaVi90]

Okay, so you need to use those settings:
DRAM Frequency: DDR2-800MHz
Memory Voltage: 2.20V
MCH Chipset Voltage: 1.65V
ICH Chipset Voltage: 1.05V

I think that with those settings you should be stable for sure. Don't forget to set right timings (5-5-5-15-5) too. It would be also good to know what is your CPU.

Ehm... I need 1066MHz: now I have installed a 800MHz kit, so it's ok. But today I have had a new ddr2 kit, running at stock speed of 1066mhz, so I want to try to run this kit at its native speed.
Of course at 800mhz they are stable

P.S.: cpu is E6700

[mikepaul]

OK, I'm giving 1.45V a test. Anyone know why CPU-Z shows an even LOWER voltage than the AUTO setting was giving?...

[tomcug]

OK, I'm giving 1.45V a test. Anyone know why CPU-Z shows an even LOWER voltage than the AUTO setting was giving?...

Mikepaul, CPU-Z shows you real voltage, so in your case AUTO setting is giving you about 1 V under load. This CPU can't be stable.

[tomcug]

Ehm... I need 1066MHz: now I have installed a 800MHz kit, so it's ok. But today I have had a new ddr2 kit, running at stock speed of 1066mhz, so I want to try to run this kit at its native speed.
Of course at 800mhz they are stable

P.S.: cpu is E6700

As I wrote before, you need to set MCH Voltage at 1.65V and at this frequency Memory Voltage to even 2.3V. What is more, enabling SPD Timings will make them more stable for sure.

[bodka]

BIOS is 2602; all voltagex except vcore and vdimm are auto; pci and pci-express are fixed to 33mhz and 100mhz.
The BUS frequency is around 320 MHz (original 266, due to E6700). However at this bus frequency no problem with the cpu: it is very very stable.
I have also tried to change the slot, one module per time,... but nothing done...

Thanks a lot for your replies!!

Try different RAM ratios and those which are closet to your required speed.
1:1 , 4:5 works usually as they are in 1066 strap. None of 800 strap ratios work for my QX9650. I think 1066Mhz on your RAM belongs to 800 FSB strap. This I feel wont be stable as it overclocks your NB too much.

Best bet is to use something slightly less that 1000Mhz in 1066 strap and use CL4 latency on your RAM.
Also VMCH needs to be at 1.65 in my case.

[PaVi90]

ok; vMHC to 1.65V. Do you suggest any other voltage setting (FSB, ICH,...)?

Thanks in advance

[bodka]

ok; vMHC to 1.65V. Do you suggest any other voltage setting (FSB, ICH,...)?

Thanks in advance

VFSB must not go beyond 1.3 for 45nm as it may destroy the CPU.

ICH voltage can be auto. or 1.05

Also enable SPD initially and try.

[PaVi90]

Nothing done: I have tried everything but without success

[tomcug]

PaVi90, you want to set FSB Frequency to 320MHz and DRAM Frequency to 1066MHz. It's impossible because you have to use 3:5 ram ratio for that. And this ram ratio forces 800MHz strap. This is the reason why your board is unstable at that setting.

[PaVi90]

PaVi90, you want to set FSB Frequency to 320MHz and DRAM Frequency to 1066MHz. It's impossible because you have to use 3:5 ram ratio for that. And this ram ratio forces 800MHz strap. This is the reason why your board is unstable at that setting.

ok, but if I want to obtain 1066MHz on RAM what can I do? I don't want to underclock the CPU (the BUS)...

[tomcug]

ok, but if I want to obtain 1066MHz on RAM what can I do? I don't want to underclock the CPU (the BUS)...

I just checked your settings and in my case it wasn't stable too. The only thing you can do is to set DRAM Frequency to 960MHz with CL4. This will give you for sure higher performance than 1066MHz CL5.

[PaVi90]

I just checked your settings and in my case it wasn't stable too. The only thing you can do is to set DRAM Frequency to 960MHz with CL4. This will give you for sure higher performance than 1066MHz CL5.

OK, I will try. However I needed full stock frequency due to some test to perform.

[tomcug]

OK, I will try. However I needed full stock frequency due to some test to perform.

If you really want 1066MHz, then you have to overclock FSB Frequency to 355MHz. This in combination with ram ratio that gave you 960MHz with 320MHz FSB Frequency will give you 1066MHz. And you'll be still using 1066MHz strap.

[PaVi90]

If you really want 1066MHz, then you have to overclock FSB Frequency to 355MHz. This in combination with ram ratio that gave you 960MHz with 320MHz FSB Frequency will give you 1066MHz. And you'll be still using 1066MHz strap.

And do you think that the mobo will work fine? For now, every time I have tried with this 1066kit windows vista didn't boot anymore (error in boot files), so I have restored two or three times all the system...

And do you think it will be possible to overclock a 1066 memory kit, for example reaching 1100 / 1150 MHz?

[mikepaul]

Mikepaul, CPU-Z shows you real voltage, so in your case AUTO setting is giving you about 1 V under load. This CPU can't be stable.

It took until today for something to go wrong, when I tried playing a video in WMP11 with other stuff. It rebooted, so I cut the voltage back to AUTO but set the FSB to 295 just to see if that still stayed stable-enough.

I have an old list of my BIOS settings so I could adjust things other than vCore, but I'm not sure WHY I'd need to adjust the other voltages if everything is happy until I boost the FSB...



Notice how the vCore is again higher at AUTO?...