Asus P4G8X Deluxe with E7205 in the test: Dual-Channel DDR-SDRAM for Pentium 4

Asus P4G8X Deluxe with E7205 in the test: Dual-Channel DDR-SDRAM for Pentium 4


We couldn't complain about the stability of the P4G8X during the test phase and we didn't have to struggle with any unforeseen crashes, dropouts or the like. The board always did its job as requested and even sharp ram timings were not a problem. In view of the relatively low clock rate of 133MHz, this is not surprising.

There were always questions about the IRQ distribution among the tested motherboards came up, we have now decided to include the INT table in order to clarify possible questions about any instabilities in this regard in advance.

INT table of the P4G8X Deluxe
ABCDEFGH PCI slot 1 - - - - - shared - - PCISlot 2 - - - - - - used - PCI slot 3 - - - - - - - shared PCI slot 4 - - - - used - - - PCI slot 5 - - shared - - - - - AGP Pro slot shared - - - - - - - Onboard USB HC0 shared - - - - - - - Onboard USB HC1 - - - used - - - - Onboard USB HC2 - - shared - - - - - Onboard USB 2.0 - - - - - - - shared Onboard LAN - - shared - - - - - Onboard SATA - - - - - shared - - Onboard 1394 - used - - - - - -

Bios and overclocking

Asus relies on the tried and tested and so you can find the typical options in the bios that leave the user enough freedom to do something himself To create expensive hardware. Only with the front-side bus, Asus leaves a little more leeway than usual and so it can be freely selected from 100 - 400MHz in 1MHz steps. Most of the clock rates will probably be denied to most users because the CPU has reached its limits.

Bios - Advanced
Bios - FSB
Bios - AGPVoltage

In addition, in some overclocking attempts we had to find out that Asus apparently set the bus timing down from 141MHz and that overclocking in this area only pays off to a limited extent. Sometimes less seems to be more here.

In our tests, we were able to increase the front-side bus to a maximum of 195MHz for the front-side bus in single-channel operation and at least 181MHz were still possible in dual-channel operation of the main memory.

Of course, the option to set the AGP/PCI clock should not be missing. Between 66/33 - 104/52MHz the inclined customer can set all clock rates in 1MHz step.

The VCore can be adjusted between 1.5 and 1.975 in the usual 0.025MHz intervals and the DIMM voltage can also be adjusted from 2.5 to 2.6 or 2.6 volts. You can also vary the AGP voltage yourself and have the choice between 1.5; 1.6 and 1.7 volts.

Bios - AGP - 1
Bios - AGP - 2
Bios - VCore
Bios - DDR-Voltage

Of course you can also adjust the RAM timings yourself. In our test, the RAM ran completely stable in 'Turbo Mode' with the timings 2-2-2-5. For DDR333 modules, these timings should also be achieved without any problems, with older DDR266 modules, which are perfect for the P4G8X (and also the E7205 in general) due to the dual-channel operation, problems can arise more easily. Here it mainly depends on the quality of the memory bar and how much you invested back then.

Bios - HT
Bios - Onboard
Bios - Timings

FSB check: The P4G8X is well in the race with its processor speed and holds up In contrast to the other two motherboards from Asus, it is remarkably accurate to the official clock. The 133.36MHz front-side bus gives no reason to complain and the resulting QDR bus of 533.45MHz is absolutely in the green area.

WCPUID P4T533-3066
Processor clock in comparison
Unit: MHz
    • Asus P4PE - i845PE
    • Asus P4T533 - i850E
    • Asus P4G8X - E7205

On the next Next page: Test system