Source: Tom's Hardware UK – Keywords: Skulltrail, QX9775, D5400XS, Octo-Core
Categories: Hardware
Overclocking – 12.5% to 3.60 GHz
At stock settings, the Core 2 Extreme QX9775 runs at 3.20 GHz. While there is a multiplier option in the BIOS, it applies to both CPUs simultaneously, so that both processors are overclocked. Since choosing different multiplier settings for each of the CPUs is not possible, the success of your overclocking experiments will always depend on the “weakest” CPU. Statistically speaking, the chances of a good overclock are thus lower than for a single-socket system. By raising the multiplier from 8x to 9x, CPU frequency increases to 3.60 GHz.
We did not need to increase the CPU’s core voltage to reach this speed. Both processors effortlessly achieved an overclock of 12.5% to 3.60 GHz at their default voltage of 1.250 V.
Our overclocking attempts were not always successful with our sample Skulltrail board and its beta BIOS. Sometimes it wouldn’t start or would get caught in a POST loop. In some cases, we weren’t even able to boot the system at default settings.
| CPU Frequency | 3.60 GHz (+12.5 %) |
| FSB | 400 MHz (1600QDR) |
| Multiplier | x9 |
| Core Voltage | Default (1.2500 V) |
| Memory Multiplier | 1.66x |
| Memory Frequency | FB-667 (333MHz DDR) |
| Timings | CL 4.0-4-4-12 |
| Memory Mode | Quad-Channel |
- Previous page BIOS – No Memory Frequency Setting
- Next page Overclocking – 25% to 4.00 GHz
but if you have that much money in the first place... they won't shiv a git about their energy costs
page 14 - two copies of same "Power Consumption 100% Load" graph = boob??!!
Spuddyt you're wrong!!
Anyone buying this board will have problems paying off those maxed out credit cards when their power bill comes in!! (Well we are talking enthusiasts right??)
Bob
I bet the lack of memory speed settings is more than just a beta issue... Intel will use it as a means of preventing ludicrous levels of Xeon overclocking and force anyone crazy enough to buy SkullTrail back onto the crack... er, I mean back to EEs, with their unlocked multiplier, relatively poor overclockability and 500% price premium. Per CPU.
I want this board. Put 2x xenons in there for $250 a piece and get a true 8core system for $1000..
Anyone know where we can buy it in the US ?
see the super gamer at extreme tech.