LGA775 Pentium 4 Installation Primer:

Installing the new LGA775 CPU is actually as easy as it gets. This system uses the Lan Grid Array technology thus allowing a true drop in socket design. Here is a step bye step guide on just how easy it is! First thing to do is release the latch and open the cover.

The CPU is keyed via gold mark on corner of chip. This key points to pin-1 on the LGA and therefore should be installed with its key in position as illustrated below.

Secondly, put the cpu in its LGA socket and thats it! No snapping in place or pressure is needed.

Once the CPU is socketed, just close the clasp and thats it. This clasp retains the CPU which will eliminate the processor being pulled out if its socket when removing the heat sinks.

Now that the CPU and clasp is shut we can now lock the LGA775 CPU into place. Just snap the lever into its locking position. Done!

This design was to combat the troubles with socket 478. The most dominate problem that faced the 478 was the fact that one could completely pull off the 478 package when removing the HSF from the CPU. This is not a good thing considering the the cpu is locked and then basically stripped from its socket and retention mechanism. So good-bye yanked CPU's!

*Note* The LGA775 socket is prone to damage. DO NOT touch the pins inside the socket after removing the protective cover for any reason at anytime.

Installing The HSF:

This design is quite simple as well, all thats required is the fact you line up the 4 studs of the HSF to the mounting holes on the motherboard and firmly press the studs into place.

You will hear a audible click sound when the studs lock to the motherboard. Significant pressure has to be applied so be careful of board flexing. Position each stud so that the groove faces the heat sink then push down firmly until it clicks into place.

Onboard Cooling Support:

This board supports up to five 12v fans. The CPU fan power is a 4-pin dongle as it has a speed control built in. The other four fan power dongles can be located as shown below:

This board can save on lots of tangle wires because it eliminates the need for external power sources to control your cooling system. I tend to believe DFI wanted to make sure you have plenty of UV-Fan power sources. Also if you notice the position of those power source's are all around the heat critical component area's. This will aid in installing 3rd party active coolers on the north and south bridge's if one chooses to do so.

The extra fan connectors is a good thing and the engineers are really thinking ahead of time with allowing end-users the choice of power locations as this design offers. This is important to me and I do not like having to fish power cables and wires all over the interior of our rigs.

• LANParty 925X-T2 Manual ( lp 925x-t2 81500419.pdf )
• LANParty 925X-T2 Product Homepage
• Intel® Application Accelerator 4.1.0.6325
• Intel® Chipset Identification Utility 6.0.1.1008