As these 2 boards are so similar in overclocking it seemed to make sense to make thread for both of them. Apart from the obvious 4 pci-e slots on the P5W64 then even the bioses are very similar. The P5W64 is slightly better at clocking as its bios has couple of extra memory tweaking options.
P5WDG2:
All bioses including beta's can be found here as well as volt mods and pencil mods:
http://infomb.googlepages.com/home
I have tried the 0408 and 0005 and have found the 0005 much better and far better than any of the other bioses available for stability. a lot of the bioses overvolt but a couple do undervolt so becareful if you go from an overvolting bios to an undervolting bios.
P5W64:
Fair few of the bioses can be found here:
http://www.overclock247.com/day187/
Important: Do not change the VID Cmos Setting and the Microcode Updation and later bioses allow disabling of 1 cpu core.
General settings:
IDE Configuration: Set ide detect time out to minimum for quicker bootup.
In cpu settings disable all of the below and this then generally allows higher cpu clocks (at standard they all disabled except for Virtualisation Technology):
Max cpuid value
Execute Disable Function
Enhanced C1 Control
Virtualisation Technology
Cpu Internal Thermal Control
Intel Speedstep tech
In ram settings disable:
Dram ECC mode (unless using ECC ram)
Dram throttling threshold
Hyper Path 3
If struggling to get ram stable then try changing the below. These are only available in the P5W64 bios and for P5WDG2 the RMS and TRFC have to be changed using memset. Hopefully a bios with more tweaking options will be released in future for the PRWDG2:
Refresh Mode Select (RMS) to 15.6, 7.8 or 3.9us
Refresh Cycle Time (TRFC) to 42
Read delay to 7 or more
Overclocking and volts:
Vcore volts vary a lot between bios setting and actual setting so be careful and go by your temps reported by TAT or coretemp and not by Asus or other board software.
Fsb: 1.4 max. (Generally 1.3v is enough unless your using high fsb)
Mch (Chipset): The chipsets get hot so remove the useless plate from the top of the heatsink and let the fins breath a bit more. Stick a fan blowing over this or use water to cool it. For volts 1.8v+ is needed to run on a divider so test at 1:1 first to check cpu and memory and eliminate the board. For more than 1.8v use a voltmod.
Ich: Set to 1.2v
Volt measuring points:
![](http://img110.imageshack.us/img110/4305/untitledss6.jpg)
P5WDG2:
All bioses including beta's can be found here as well as volt mods and pencil mods:
http://infomb.googlepages.com/home
I have tried the 0408 and 0005 and have found the 0005 much better and far better than any of the other bioses available for stability. a lot of the bioses overvolt but a couple do undervolt so becareful if you go from an overvolting bios to an undervolting bios.
P5W64:
Fair few of the bioses can be found here:
http://www.overclock247.com/day187/
Important: Do not change the VID Cmos Setting and the Microcode Updation and later bioses allow disabling of 1 cpu core.
General settings:
IDE Configuration: Set ide detect time out to minimum for quicker bootup.
In cpu settings disable all of the below and this then generally allows higher cpu clocks (at standard they all disabled except for Virtualisation Technology):
Max cpuid value
Execute Disable Function
Enhanced C1 Control
Virtualisation Technology
Cpu Internal Thermal Control
Intel Speedstep tech
In ram settings disable:
Dram ECC mode (unless using ECC ram)
Dram throttling threshold
Hyper Path 3
If struggling to get ram stable then try changing the below. These are only available in the P5W64 bios and for P5WDG2 the RMS and TRFC have to be changed using memset. Hopefully a bios with more tweaking options will be released in future for the PRWDG2:
Refresh Mode Select (RMS) to 15.6, 7.8 or 3.9us
Refresh Cycle Time (TRFC) to 42
Read delay to 7 or more
Overclocking and volts:
Vcore volts vary a lot between bios setting and actual setting so be careful and go by your temps reported by TAT or coretemp and not by Asus or other board software.
Fsb: 1.4 max. (Generally 1.3v is enough unless your using high fsb)
Mch (Chipset): The chipsets get hot so remove the useless plate from the top of the heatsink and let the fins breath a bit more. Stick a fan blowing over this or use water to cool it. For volts 1.8v+ is needed to run on a divider so test at 1:1 first to check cpu and memory and eliminate the board. For more than 1.8v use a voltmod.
Ich: Set to 1.2v
Volt measuring points:
![](http://img110.imageshack.us/img110/4305/untitledss6.jpg)