Intel Xeon X5365
Runs in an LGA 775 board only with the adapter sticker, the socket tabs removed and BIOS support for its core. How the mod works.
Intel Xeon X5365: 4-core, 3.0 GHz, Clovertown, LGA 771, 1333 MT/s FSB, 8 MB (2 x 4 MB) L2, 150 W TDP.
Clovertown at its fastest: 3.0 GHz from a 1333 MT/s bus and a 9x multiplier. The heat rating is disputed. ARK gives 150 W, Wikipedia lists 150 W and 120 W for the B3 SLAC3 and G0 SLAED steppings, and CPU-World's SLAC3 page shows 120 W; the table keeps ARK's 150 W. Launch differs too: ARK says Q3 2007, Wikipedia March 12, 2007, and the table uses Intel's quarter. Neither sSpec appears in Intel's spec update, so the CPUIDs 6F7 and 6FB come from the stepping table. Tcase is 63 °C. Plan the cooler and the board's power delivery for the full 150 W.
| Family | Xeon |
|---|---|
| Codename | Clovertown |
| Socket | LGA 771 |
| Cores / threads | 4 / 4 |
| Base clock | 3 GHz |
| Front-side bus | 1333 MT/s (333 MHz base clock) |
| Multiplier | 9x |
| L2 cache | 8 MB (2 x 4 MB) |
| TDP | 150 W |
| Process | 65 nm |
| Launch | Q3 2007 |
| Dual-socket capable | Yes |
| VT-x | Yes |
| SSE4.1 | No |
| Enhanced SpeedStep | Yes |
| Max case temperature | 63 °C |
| Voltage range (VID) | 1 V to 1.5 V |
Steppings and microcode IDs
| Stepping | CPUID | sSpec |
|---|---|---|
| B3 | 6F7 | SLAC3 |
| G0 | 6FB | SLAED |
A BIOS needs a microcode update matching the CPUID (and, for Xeons, the LGA 771 platform ID). See LGA 771 Xeon microcode and how to read your stepping.
Mod notes
Closest LGA 775 desktop chip: Core 2 Extreme QX6850 (3 GHz, 1333 MT/s, 8 MB (2 x 4 MB)). A board that lists it is the best sign it can run the Xeon X5365.
On top of the usual Kentsfield-capable board, this one needs power delivery strong enough for a 150 W part. The steps are the adapter sticker, the two socket tabs cut away, and microcode for CPUIDs 6F7 and 6FB with the LGA 771 platform ID. Weak regulators can overheat under that load, and the tab cut is permanent, so settle on the board first.
Check a specific board with the LGA 771 to 775 compatibility checker.