Source: Tom's Hardware UK – Keywords: Skulltrail, QX9775, D5400XS, Octo-Core
Categories: Hardware
Processor – The QX9775 in Detail
The Skulltrail Core 2 Extreme QX9775 processor is clocked at 3.2 GHz, and each of its two dual-cores contains 6 BM of L2 cache for a total of 12 MB per CPU. It communicates with the 5400 northbridge via a 400 MHz (1600QDR) FSB and, being an Extreme Edition model, features an unlocked multiplier.
| Model | QX9775 | QX9770 | QX9650 | Q6600 |
|---|---|---|---|---|
| Socket | 771 | 775 | 775 | 775 |
| Core | Yorkfield | Yorkfield | Yorkfield | Kentsfiled |
| Clock Speed | 3.20 GHz | 3.20 GHz | 3.00 GHz | 2.40 GHz |
| Multiplier | unlocked | unlocked | unlocked | x9 |
| FSB | 1600QDR | 1600QDR | 1600QDR | 1066QDR |
| L2 Cache: | 12 MB | 12 MB | 12 MB | 8 MB |
| Process: | 45 nm | 45 nm | 45 nm | 65nm |
The only difference between the single-socket desktop variant and its dual-socket version can be found on the back of the CPU package.
Intel’s Skulltrail motherboard, the D5400XS, features the LGA 771 socket used in the workstation and server segment. As a result, it is incompatible with desktop CPUs which use socket 775. The two indentations on the side of the CPU package also prevent the wrong CPU from being inserted. Electrically, the two variants are basically interchangeable, as they use the same front-side bus protocol.
Using socket 771 on the Skulltrail board results in a big advantage for the buyer – it is compatible with any current Xeon processor. According to Intel, all 65 nm (Clovertown) and 45 nm (Harpertown) Xeons are supported.
- Previous page Processors - Intel Core 2 Extreme QX9775
- Next page Processor – Support for 43 Xeon Models
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.