List of LGA 771 & 775 CPUs + Current Prices

MODs

35 Comments

On this page, we've combined all of Intel's quad core LGA 771 and LGA 775 CPUs into 1 table (sorted by speed). This should make it easier to compare prices and specifications if you're considering the LGA 771 to 775 MOD.

  • Intel Core 2 Quad
  • Intel Core 2 Extreme
  • LGA 771 Xeon
  • LGA 775 Xeon

List of Quad Core LGA 771 & 775 CPUs

Prices are automatically updated throughout the day.

CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
  • Xeon X5492
$49 3.40 GHz
8.5x
2 x 6 MB 1600 150 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBD)
View Sellers
  • Xeon X5470
$36 3.33 GHz
10.0x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBF)
View Sellers
~ 3.20 GHz
  • Xeon X5460
$13 3.17 GHz
9.5x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBA)
C0 (SLANP)
View Sellers
  • Xeon X5482
$26 3.20 GHz
8.0x
2 x 6 MB 1600 120 W
150 W
45nm
  • Harpertown
  • LGA 771
E0 (SLBBG)
C0 (SLANZ)
View Sellers
  • Core 2 Extreme QX9775
$110 3.20 GHz
8.0x
2 x 6 MB 1600 150 W45nm
  • Yorkfield XE
  • LGA 771
C0 (SLANY)
View Sellers
  • Core 2 Extreme QX9770
$140 3.20 GHz
8.0x
2 x 6 MB 1600 136 W45nm
  • Yorkfield XE
  • LGA 775
C1 (SLAWM)
C0 (SLAN2)
View Sellers
  • Xeon X3380
$160 3.17 GHz
9.5x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLGPG)
View Sellers
~ 3.00 GHz
  • Xeon X5472
$11 3.00 GHz
7.5x
2 x 6 MB 1600 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBB)
C0 (SLASA)
View Sellers
  • Xeon X5450
$12 3.00 GHz
9.0x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBE)
C0 (SLASB)
View Sellers
  • Xeon E5450
$15 3.00 GHz
9.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBM)
C0 (SLANQ)
View Sellers
  • Xeon E5472
$15 3.00 GHz
7.5x
2 x 6 MB 1600 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBH)
C0 (SLANR)
View Sellers
  • Xeon X5365
$25 3.00 GHz
9.0x
2 x 4 MB 1333 150 W65nm
  • Clovertown
  • LGA 771
G0 (SLAED)
B3 (SLAC3)
View Sellers
  • Core 2 Extreme QX6850
$43 3.00 GHz
9.0x
2 x 4 MB 1333 130 W65nm
  • Kentsfield XE
  • LGA 775
G0 (SLAFN)
View Sellers
  • Core 2 Extreme QX6800
$50 2.93 GHz
11.0x
2 x 4 MB 1066 130 W65nm
  • Kentsfield XE
  • LGA 775
G0 (SLACP)
B3 (SL9UK)
View Sellers
  • Core 2 Quad Q9650
$54 3.00 GHz
9.0x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLB8W)
View Sellers
  • Xeon X3370
$57 3.00 GHz
9.0x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLB8Z)
View Sellers
  • Core 2 Extreme QX9650
$77 3.00 GHz
9.0x
2 x 6 MB 1333 130 W45nm
  • Yorkfield XE
  • LGA 775
C1 (SLAWN)
C0 (SLAN3)
View Sellers
CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
~ 2.83 GHz
  • Xeon E5462
$8 2.80 GHz
7.0x
2 x 6 MB 1600 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBN)
C0 (SLANT)
View Sellers
  • Xeon E5440
$9 2.83 GHz
8.5x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBJ)
C0 (SLANS)
View Sellers
  • Xeon X3363
$20 2.83 GHz
8.5x
2 x 6 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
E0 (SLBC3)
C0 (SLASC)
View Sellers
  • Core 2 Quad Q9500
$24 2.83 GHz
8.5x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGZ4)
View Sellers
  • Core 2 Quad Q9505
$25 2.83 GHz
8.5x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGYY)
View Sellers
  • Xeon X3360
$29 2.83 GHz
8.5x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLB8X)
C1 (SLAWZ)
C0 (SLAN5)
View Sellers
  • Core 2 Quad Q9550
$32 2.83 GHz
8.5x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLB8V)
C1 (SLAWQ)
C0 (SLAN4)
View Sellers
  • Core 2 Quad Q9505S
$63 2.83 GHz
8.5x
2 x 3 MB 1333 65 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGYZ)
View Sellers
  • Xeon L3360
$79 2.83 GHz
8.5x
2 x 6 MB 1333 65 W45nm
  • Yorkfield
  • LGA 775
E0 (SLGPF)
View Sellers
  • Core 2 Quad Q9550S
$85 2.83 GHz
8.5x
2 x 6 MB 1333 65 W45nm
  • Yorkfield
  • LGA 775
E0 (SLGAE)
View Sellers
CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
2.67 GHz
  • Xeon X5355
$5 2.67 GHz
8.0x
2 x 4 MB 1333 120 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEG)
B3 (SLAC4)
B3 (SL9YM)
View Sellers
  • Xeon E5430
$6 2.67 GHz
8.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBK)
C0 (SLANU)
View Sellers
  • Core 2 Quad Q8400
$12 2.67 GHz
8.0x
2 x 2 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGT6)
View Sellers
  • Core 2 Quad Q9400
$13 2.67 GHz
8.0x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLB6B)
View Sellers
  • Xeon X3353
$17 2.67 GHz
8.0x
2 x 6 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
E0 (SLBC4)
C0 (SLASD)
View Sellers
  • Xeon X3330
$17 2.67 GHz
8.0x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLB6C)
View Sellers
  • Xeon L5430
$18 2.67 GHz
8.0x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBQ)
View Sellers
  • Core 2 Quad Q6700
$19 2.67 GHz
10.0x
2 x 4 MB 1066 95 W65nm
  • Kentsfield
  • LGA 775
G0 (SLACQ)
View Sellers
  • Xeon X3350
$19 2.67 GHz
8.0x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
E0 (SLB8Y)
C1 (SLAX2)
C0 (SLAN7)
View Sellers
  • Xeon X3230
$21 2.67 GHz
10.0x
2 x 4 MB 1066 95 W65nm
  • Kentsfield
  • LGA 775
G0 (SLACS)
View Sellers
  • Core 2 Quad Q9450
$22 2.67 GHz
8.0x
2 x 6 MB 1333 95 W45nm
  • Yorkfield
  • LGA 775
C1 (SLAWR)
C0 (SLAN6)
View Sellers
  • Core 2 Extreme QX6700
$28 2.67 GHz
10.0x
2 x 4 MB 1066 130 W65nm
  • Kentsfield XE
  • LGA 775
B3 (SL9UL)
View Sellers
  • Core 2 Quad Q8400S
$32 2.67 GHz
8.0x
2 x 2 MB 1333 65 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGT7)
View Sellers
  • Core 2 Quad Q9400S
$50 2.67 GHz
8.0x
2 x 3 MB 1333 65 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLG9U)
View Sellers
  • Core 2 Quad Q9450S
Sold out 2.67 GHz
8.0x
2 x 6 MB 1333 65 W45nm
  • Yorkfield
  • LGA 775
C1 (SLAWY)
View Sellers
CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
2.50 GHz
  • Xeon E5420
$5 2.50 GHz
7.5x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBL)
C0 (SLANV)
View Sellers
  • Xeon L5420
$6 2.50 GHz
7.5x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBR)
C0 (SLARP)
View Sellers
  • Xeon X3323
$8 2.50 GHz
7.5x
2 x 3 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
R0 (SLBC5)
M0 (SLASE)
View Sellers
  • Core 2 Quad Q9300
$10 2.50 GHz
7.5x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
M1 (SLAWE)
M0 (SLAMX)
View Sellers
  • Core 2 Quad Q8300
$12 2.50 GHz
7.5x
2 x 2 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGUR)
R0 (SLB5W)
Note: SLB5W does not support Intel VT-X
View Sellers
  • Xeon X3320
$17 2.50 GHz
7.5x
2 x 3 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLB69)
M1 (SLAWF)
View Sellers
~ 2.40 GHz
  • Xeon E5410
$4 2.33 GHz
7.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBC)
C0 (SLANW)
View Sellers
  • Xeon E5345
$5 2.33 GHz
7.0x
2 x 4 MB 1333 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEJ)
B3 (SLAC5)
B3 (SL9YL)
View Sellers
  • Xeon L5410
$5 2.33 GHz
7.0x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBS)
C0 (SLAP4)
View Sellers
  • Core 2 Quad Q8200
$8 2.33 GHz
7.0x
2 x 2 MB 1333 95 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLG9S)
M1 (SLB5M)
Note: Does not support Intel VT-X
View Sellers
  • Core 2 Quad Q6600
$9 2.40 GHz
9.0x
2 x 4 MB 1066 95 W
105 W
65nm
  • Kentsfield
  • LGA 775
G0 (SLACR)
B3 (SL9UM)
View Sellers
  • Xeon X3220
$10 2.40 GHz
9.0x
2 x 4 MB 1066 105 W65nm
  • Kentsfield
  • LGA 775
G0 (SLACT)
B3 (SL9UP)
View Sellers
  • Core 2 Quad Q8200S
$13 2.33 GHz
7.0x
2 x 2 MB 1333 65 W45nm
  • Yorkfield-6M
  • LGA 775
R0 (SLGSS)
R0 (SLG9T)
Note: SLG9T does not support Intel VT-X
View Sellers
CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
2.13 GHz
  • Xeon X3210
$8 2.13 GHz
8.0x
2 x 4 MB 1066 105 W65nm
  • Kentsfield
  • LGA 775
G0 (SLACU)
B3 (SL9UQ)
View Sellers
  • Xeon L5408
$22 2.13 GHz
8.0x
2 x 6 MB 1066 40 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBT)
C0 (SLAP5)
View Sellers
  • Core 2 Quad Q6400
$27 2.13 GHz
8.0x
2 x 4 MB 1066 105 W65nm
  • Kentsfield
  • LGA 775
B3 (SL9UN)
View Sellers
2.00 GHz
  • Xeon E5405
$3 2.00 GHz
6.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBP)
C0 (SLAP2)
View Sellers
  • Xeon E5335
$4 2.00 GHz
6.0x
2 x 4 MB 1333 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEK)
B3 (SLAC7)
B3 (SL9YK)
View Sellers
  • Xeon L5335
$6 2.00 GHz
6.0x
2 x 4 MB 1333 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEN)
View Sellers
1.87 GHz
  • Xeon E5320
$3 1.87 GHz
7.0x
2 x 4 MB 1066 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEL)
B3 (SLAC8)
B3 (SL9MV)
View Sellers
  • Xeon L5320
$6 1.87 GHz
7.0x
2 x 4 MB 1066 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEP)
B3 (SLAC9)
B3 (SLA4Q)
View Sellers
1.60 GHz
  • Xeon E5310
$3 1.60 GHz
6.0x
2 x 4 MB 1066 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEM)
B3 (SLACB)
B3 (SL9XR)
View Sellers
  • Xeon L5310
$5 1.60 GHz
6.0x
2 x 4 MB 1066 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEQ)
B3 (SLACA)
B3 (SL9MT)
View Sellers
  • Xeon L5318
Sold out 1.60 GHz
6.0x
2 x 4 MB 1066 40 W65nm
  • Clovertown
  • LGA 771
G0 (SLAJE)
View Sellers
CPUPrice
(May 23)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)

Key features and differences between Quad Core LGA 771 & 775 CPUs

Topics in this section
  1. 45nm Comparison
  2. 65nm Comparison

The CPUs shown below are grouped by codename, since most CPUs with the same codename are very similar. You can find the codename for each processor in the main CPU table.

45nm Comparison

The most important thing to notice is that the Yorkfield-6M CPUs (LGA 775) have half the cache of the others.

 HarpertownYorkfield-CLYorkfield XEYorkfieldYorkfield-6M
CPUs
(where x = any digit)
Xeon X54xx, E54xx, L54xxXeon X33x3Core 2 Extreme QX9xxx
  • Core 2 Quad Q9x50
  •  
  • Xeon X33x0, L33x0
  • Core 2 Quad Q9x0x, Q8xxx
  •  
  • Xeon X3330, X3320
SocketLGA 771LGA 771
  • LGA 771
  • LGA 775
LGA 775LGA 775
MicroarchitecturePenrynPenrynPenrynPenrynPenryn
L2 Cache2 × 6 MB
  • 2 × 6 MB
  • 2 × 3 MB
2 × 6 MB2 × 6 MB
  • Q8xxx:
    2 × 2 MB
  •  
  • All others:
    2 × 3 MB
Unlocked ratio (multiplier)Not supportedNot supportedSupportedNot supportedNot supported
SSE4.1SupportedSupportedSupportedSupportedSupported
Virtualization Technology (VT-x)SupportedSupportedSupportedSupported Supported All (except Q8200)[a]
Virtualization Technology for Directed I/O (VT-d)Not supportedNot supportedNot supportedSupported All (except Xeons) Supported All (except Q9500, Q8xxx, Xeons)
Enhanced Intel SpeedStep Technology (EIST) Supported All (except E5405)SupportedSupportedSupportedSupported
Demand Based Switching Supported All (except E5405, L5408)Not supportedNot supportedNot supportedNot supported
Trusted Execution Technology (TXT)Not supportedNot supportedNot supportedSupported All (except Xeons) Supported All (except Q9500, Q8xxx, Xeons)
Dual CPU ConfigurationsSupportedNot supported
  • Supported QX9775
  • Not supported All others
Not supportedNot supported
Die Size2 × 107 mm2
  • 2 × 107 mm2
  •  
  • X3323:
    2 × 82 mm2
2 × 107 mm22 × 107 mm22 × 82 mm2
Voltage0.85–1.35 V0.85–1.35 V0.85–1.36 V0.85–1.36 V0.85–1.36 V
  • a Note: Some revisions of the Q8200S and Q8300 also do not support VT-x (see notes in the CPU table).

65nm Comparison

 ClovertownKentsfield XEKentsfield
CPUs
(where x = any digit)
Xeon X53xx, E53xx, L53xxCore 2 Extreme QX6xxx
  • Core 2 Quad Q6xxx
  •  
  • Xeon X32xx
SocketLGA 771LGA 775LGA 775
MicroarchitectureCoreCoreCore
L2 Cache2 × 4 MB2 × 4 MB2 × 4 MB
Unlocked ratio (multiplier)Not supportedSupportedNot supported
SSE4.1Not supportedNot supportedNot supported
Virtualization Technology (VT-x)SupportedSupportedSupported
Virtualization Technology for Directed I/O (VT-d)Not supportedNot supportedNot supported
Enhanced Intel SpeedStep Technology (EIST)Supported All (except E5310 & E5335)SupportedSupported
Demand Based Switching
  • Supported X53xx, E5345, E5320, L5318
  •  
  • Not supported All others
Not supportedNot supported
Trusted Execution Technology (TXT)Not supportedNot supportedNot supported
Dual CPU ConfigurationsSupportedNot supportedNot supported
Die Size2 × 143 mm22 × 143 mm22 × 143 mm2
Voltage
  • L53xx[a]:
    1.10–1.25 V
  •  
  • All others:
    1.00–1.50 V
1.1–1.37 V
  • Core 2 Quad:
  • 1.1–1.37 V
  •  
  • Xeon:
  • 0.85–1.5 V
  • a Clovertown voltage range exceptions: Xeon L5335 is 1.00–1.50 V and L5318 is 0.90–1.25 V.

CPU Steppings (revisions) & CPUID Information

If you're unsure what a stepping is, Intel basically creates a new stepping (or revision) whenever they make a major change to a processor. This usually fixes bugs, adds new features, reduces power consumption, or improves overclocking.

SteppingNodeReleasedL2 CacheCPUsCPUID
E045nmAugust 20082 x 6 MB
  • Harpertown
  • Yorkfield-CL
  • Yorkfield
1067A
C145nmMarch 20082 x 6 MB
  • Yorkfield
  • Yorkfield XE
10677
C045nmNovember 20072 x 6 MB
  • Harpertown
  • Yorkfield-CL
  • Yorkfield
  • Yorkfield XE
10676
R045nmAugust 2008
  • ≤ 2 x 3 MB
  • Yorkfield-CL
  • Yorkfield-6M
1067A
M145nmMarch 2008
  • 2 x 3 MB
  • 2 x 2 MB
Yorkfield-6M10677
M045nmMarch 20082 x 3 MB
  • Yorkfield-CL
  • Yorkfield-6M
10676
G065nmApril 20072 x 4 MB
  • Clovertown
  • Kentsfield XE
  • Kentsfield
06FB
B365nmNovember 20062 x 4 MB
  • Clovertown
  • Kentsfield XE
  • Kentsfield
06F7

35 Responses

  • Nicolas January 26, 20159:18 pm

    Hi sorry but i dont speak so much inglish! the thing is that i have a MSI 945P_Neo5 and i want to now if this mother-Chipset is compatible with this mod! and if you dond now, can my computer burn out if i try?

    Reply
    • syn January 27, 201512:10 pm

      It looks like your motherboard only supports older 65nm Core 2 Duo CPUs, so it probably won’t work with this mod. I don’t think it would damage anything for you to try it, but it likely won’t boot.

      Reply
      • pat February 8, 20154:35 am

        can i run intel xeon l5420 on dg33fb motherboard ?

        Reply
        • syn February 8, 20151:46 pm

          Since the dg33fbc doesn’t support 5xxx series Xeons, this mod may not be compatible with that motherboard.

          I’d probably get a regular LGA 775 cpu instead.

          Reply
  • Ray February 4, 201510:59 am

    Hi I have a Pegatron IPM41 D3 MB. I was wondering would it work on this board? If so, which processors can I use to mod this board?

    Reply
    • syn February 4, 201512:48 pm

      It looks like it has a G41 chipset, 1333 FSB, and supports up to a Core 2 Quad Q9650, so you should be good with any Xeons with a TDP of 95 W or lower and a 1333 FSB.

      For more details on compatibility, check out this page: http://www.delidded.com/lga-771-to-775-adapter/2/

      Reply
      • Ray February 4, 20151:26 pm

        Thank you for the quick response! What’s kind of improvements would I see? Will it improve on premiere cs 5 rendering? What else?
        Sincerely
        Ray

        Reply
        • syn February 4, 20152:53 pm

          It depends on what processor you’re coming from.

          To compare performance between processors, check out: cpuboss.com

          Reply
          • Ray February 9, 20159:41 am

            I am going to try the Xeon E5450 to my Pegatron IPM41 D3. Should I try it without the microcode or with?

        • syn February 9, 20152:24 pm

          I’d go ahead and also update the microcode. That gives it the best chance of working without issues.

          Reply
          • Pedro March 8, 201511:21 am

            If I don’t do the “microcode” update, will the computer start? Is the microcode a vital thing for the functionality or just to unleashe the full potential of the cpu?
            By the way my motherboard is a H-I41-uATX (Eton) and I want to put a Xeon E5450 (80w) wont accept more than 95w

          • syn March 8, 201511:30 am

            The computer should start if your bios supports a similar LGA 775 cpu (like the Q9650). The microcode update is only needed if you notice some stability problem (most don’t), missing cpu instructions, or some other issue.

  • Vincent Schulz March 9, 20158:42 pm

    Hi,

    There are contradictory statements about 5xxx Xeons supporting VT-d or not.

    I read that the VT-d Feature would rather depend only on the proper chipset and the proper BIOS on socket 771 and 775 architectures. Because PCI Express and Memory Controller is built into the chipset, not into the processor!


    There are socket 771 motherboards, from Tyan which are VT-d capable. So this means there would be VT-d cabable Xeons on socket 771.

    http://lists.xenproject.org/archives/html/xen-users/2008-04/msg00826.html

    {…]
    “The Tyan Tempest i5400XT (S5396) is a good example of when the chipset/BIOS supports VT-d. You’ll see it mentioned in the manual:
    http://www.tyan.com/manuals/m_s5396_120.pdf

    [In manual Press Ctrl+F, and type in vt-d into search box]

    {…}
    “As far as server chipsets are concerned, Intel has stated the Xeon 5400 (DP) or Xeon 3200/3210 (UP) are VT-d capable. However, it’s up to the OEMs in enabling VT-d in the BIOS. Please note that from what I’ve seen, it will explicitly state “VT-d” in the BIOS for enabling or disabling on top of anything that refers to “Intel Virtualization” or “Vanderpool”.”

    {…}
    “i have seen a lot of questions about VT-d on recent intel mobos.
    however, it seems that all tests are done on the newer socket 775-based xeon’s or core2’s, and not the 5000 series (socket 771 based).


    I looked through the specs of many socket 771 Xeons on ark.intel.com but the Intel specs lists are incomplete neither saying VT-d “Yes” or “No”

    Core i7 -K series for example don’t support VT-d, so with Core i7 K-Series VT-d would definitely not work, because on Core i Series memory controller are built into the CPU instead into the chipset.

    Correct me if I am wrong. :)

    Reply
    • Thomas Hoberg August 18, 20157:13 pm

      Perhaps this reply is a little late, but I believe you’ve got it all well nailed down. Of course, the capabilities are *always* within the chipset, or in the case of the newer i-series CPUs always within the CPU, but disabled by Intel for the purpose of market segmentation (gotta agree with Charly’s rants semiaccurate.com on that).

      VT-d is typically used for passthrough of physical devices to a guest on a hypervisor so it’s more common on Xeon CPUs and chipsets, but the secondary use is remote management or remote booting for unattended desktop maintenance, which is why it’s also enabled on Q chipsets.

      I’ve always wanted to use it for hypervisor experiments in the home lab at desktop prices and Intel’s feature fusing madness drove me up the wall! Things have become quite a lot better these days and it’s almost possible to get “server” features at a desktop price with the Hawell-E Xeons.

      Reply
  • Vincent Schulz March 9, 20159:09 pm

    So the Asus P5E-VM DO has Q35 chipset and its BIOS has the VT-d option
    http://dlcdnet.asus.com/pub/ASUS/mb/socket775/P5E-VM_DO/e3346_P5E-VM_DO.zip

    {…}5xxx series Xeon worked even though the chipset was Q35
    ASUS motherboards with a Qxx chipset may not have the 5xxx series incompatibility problem

    Just out of interest: Is there Anybody who got VT-d running on Asus P5E-VM DO (Q35 chipset)with a Xeon 5xxx (socket 771)?
    Eg. with Xeon E5410 (E0) or with Xeon E5472 or L5430 ? :-)

    Reply
    • Thomas Hoberg August 18, 20157:18 pm

      Again a little late, I’m afraid….

      I only had various Xeons X5492 for those experiments and they failed on that board (worked very well with the P45 boards, though), because they need FSB1600 to even start: They won’t clock down and thus also fail on 5000 servers.

      I could patch the BIOS all right and I’m pretty sure it would work with any FSB1333 Xeon.

      I’ve used that board to successfully test VT-d passthrough e.g. of a FusionIO PCIe SSD or 10Gbit Ethernet adapters on VMware ESXi.

      Reply
      • Thomas Hoberg August 18, 20157:21 pm

        Forgot to add: Used a Q9950 for those experiments, which won’t overclock at all without failing stress tests even though it runs rather cool.

        Reply
      • Vincent Schulz August 19, 201510:03 pm


        ASUS P5E-VM DO Q35 / ICH9DO 1333 ≥ 130 Q9650, QX9650, Q6700, E8600, E6850 3xxx series
        FAILED: E5410 (E0), L5420

        Notes:

        1 person reported an E5410 (E0) worked on this board, but 2 other people confirmed that a 5xxx series Xeon didn’t work for them, so 5xxx series Xeons are probably not compatible with this board.
        —-

        I’ve downloaded all BIOS versions from ASUS P5E-VM DO (Q35 chipset) motherboard.

        What I noticed is that microcode for CPUI 1067A (plattform 10+1 =>two plattforms =>double file size) is missing in all BIOS version in ASUS P5E-VM DO BIOS, except in 0902 (latest BIOS version) here.

        CPUID 10676 microcodes (both plattform 1 and plattform10) are missing completely in before version 0403.
        And before BIOS 0702 CPUID 10676 there are only old microcode revision (06 from 2007)
        Just sInce 0702 there is 10676 newer revision 0B) (date 2008/01/19).

        Whats strange is, that on all my P45 boards the update revion of 10676 (date 2008/01/19) is called revision 0C instead of revision 0B (=>ASUS P5E-VM DO)

        Maybe those people having problem with 5xxx Xeon did get the ASUS P5E-VM DO with old BIOS on ebay. And did not update BIOS first before putting in the 5xxx.

        I’d like to test the ASUS P5E-VM DO with Xeon L5430 (have a spare part).
        And I have a Celeron 430 which is supported from first BIOS release on ASUS P5E-VM DO.
        THninking about buying ASUS P5E-VM DO, putting in Celeron 430 updating BIOS (if necessary+new microcodes), and perhaps it’s working with L5430, if possible.

        And a chance to test the VT-d feature on a Xeon 5xxx :-)

        Reply
  • Mart April 17, 20154:32 am

    Quite a disproportionate price increase above the 2.67ghz E5430. ie: the E5450 is almost 3 times the price of a E5430 for maybe a 10% gain in performance. But, it’s always been this way with CPU pricing.

    Reply
  • Pinks April 18, 20158:12 am

    Hi :)

    I’m confused, I have P5G41T-M LX with LGA775, and I want to install Xeon E3110 by site http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20E3110%20-%20EU80570KJ0806M%20-%20AT80570KJ0806M%20(BX80570E3110).html it’s to 775 do i have to cut socket? I didn’t saw him on list, so I ask if it possible to install it? And install all microcode?

    Many thanks for help :)

    Reply
  • Vincent12 April 18, 20159:44 pm

    @Pinks
    No you do not need to cut off any notches on CPU socket on your Asus P5G41T-M LX ! The Xeon E3110 is socket 775 as your board, so you don’t have to place any adapter on your CPU :)

    Your board should boot because it support very similiar CPUs (like Core2 Duo E8400).
    Your BIOS supports both steppings of E8400. And Xeon E3110 has same CPUID and same both steppings.

    I had harmles (good experience) with my Asus P5Q3. The original BIOS had the correct CPUID 1067A but for platform 11.
    I needed microcode 1067A plattform 44. But it still booted. Just a few feautures of Xeon very missing.
    So I just added 1067A plattform 44, now all features work.

    My P5Q3 has also AMI BIOS like yours.

    A feature of your Xeon E3110 might be locked. But I doubt that, because Xeon E3110 is socket 775 already.
    My Xeon is socket 771, not 775. Yours is 775, so you probably don’t need to add any microcode at all.

    (If your BIOS should report something s similar like “To unleash CPU’s full power, please perform BIOS Update” you would need to add proper microcode file with name *1067a*platt*44*.bin

    The P5G41T-M LX has AMI BIOS. So it’s easy add new microcodes to this type of BIOS, you can use MMtool (MMTOOL_3.22_1B_21Fix-BKMOD.EXE)
    =>http://www.delidded.com/how-to-update-cpu-microcode-in-ami-bios/

    Reply
  • Vincent12 April 18, 201510:11 pm

    @Pink
    There are two versions of E3110 (with either C0-stepping or E0-stepping). Your E3110 either has CPUID 10676 (C0) or CPUID 1067A (E0).

    Your BIOS already has correct microcode with CPUID 10676 (C0) and CPUID 1067A (E0) because it supports already Core2 Duo E8400 (with same stepping and same CPUID). Plattform also is correct because same CPU sockets!

    You can check here
    =>http://www.asus.com/de/Motherboards/P5G41TM_LX/HelpDesk_CPU/

    Xeon E3110:
    =>http://www.cpu-world.com/CPUs/Xeon/Intel-Xeon%20E3110%20-%20EU80570KJ0806M%20-%20AT80570KJ0806M%20(BX80570E3110).html

    Processor core:
    Wolfdale
    Core steppings:
    C0 (Q9SZ, SLAPM)
    E0 (QHFA, SLB9C)
    CPUIDs:
    10676 (SLAPM)
    1067A (QHFA, SLB9C)


    Core2 Duo E8400
    =>http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20E8400%20EU80570PJ0806M%20-:%20AT80570PJ0806M%20(BX80570E8400).html

    Processor core:
    Wolfdale
    Core steppings:
    C0 (Q9HD, SLAPL)
    E0 (QHEZ, QHGG, SLB9J)
    CPUIDs:
    10676 (SLAPL)
    1067A (QHEZ, QHGG, SLB9J)

    Reply
    • Pinks April 21, 201512:32 pm

      Thank You for both posts ;)

      Everything works great, didnt have to update microcode, all instructions seams to be ok, for me most valuable was SSSE 4.1 in CPU-Z and aida64 they report this instruction, any other ways to check? Already i see much boost in loading and coding.

      If i get more cash I try to buy E5450 :D

      Reply
      • Vincent12 April 21, 20155:31 pm

        Quote
        “{…} all instructions seams to be ok, for me most valuable was SSSE 4.1 in CPU-Z and aida64 they report this instruction, any other ways to check?”

        There’d be another way to check if VT-x sse4.1 and Speedstep works.
        If you have a Linux Installation like Debian or Ubuntu/… or a Live-Linux-System like Knoppix

        Then you can check it in this file in Linux in “/proc/cpuinfo” (without quotation marks)
        If you find the “vmx” cpu-flag there VT-x is available. (“vmx” is how they call it)
        If you find the “est” cpu-flag there, then Speedstep works
        If you find the “sse4_1” cpu-flag there, then sse 4.1 runs

        But u can trust CPU-Z, too.

        These are the cpu instructions /proc/cpuinfo lists on my computer after microcode update

        flags:
        fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 xsave lahf_lm dtherm tpr_shadow vnmi flexpriority


        And these are the cpu-instructions /proc/cpuinfo listed without microcode update:

        flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni tm2 ssse3 lahf_lm dtherm

        Reply
  • Vincent12 April 21, 20155:52 pm

    [Quote]
    “{…}If i get more cash I try to buy E5450 :D”

    Yes good for overclocking (if your motherboard and ram does handle). And 4 cores :D!!
    But E5450 is socket 771.
    Then you’ll need to cut off both notches on socket of course. And you will have to add new microcodes to your AMI BIOS (so that cpu has all instructions). But that’s totally easy on AMI BIOS and with MMtool.
    You get Mmtool here:
    MMTOOL_3.22_1B_21Fix-BKMOD.EXE =>http://www.delidded.com/how-to-update-cpu-microcode-in-ami-bios/

    Microcode for Xeon socket 771 (E0 stepping)
    =>cpu0001067a_plat00000044_ver00000a0b_date20100928.bin (file size = 8 KiByte)

    Microcode for Xeon socket 771 (C0 stepping),
    =>cpu00010676_plat00000004_ver0000060f_date20100929.bin (file size = 4 KiByte)
    =>cpu00010676_plat00000040_ver0000060f_date20100929.bin (file size = 4 KiByte)

    Microcode for Core2 Duo, Core2 Quad socket 775 (E0 stepping):
    cpu0001067a_plat00000011_ver00000a0b_date20100928.bin

    Microcode for Core2 Duo, Core2 Quad socket 775 (C0 stepping):
    cpu00010676_plat00000001_ver0000060f_date20100929.bin
    cpu00010676_plat00000010_ver0000060f_date20100929.bin

    Reply
  • roger June 5, 20152:01 am

    I have an Asus Wolfdale 1333 667 motherboard (775 socket) with an e2160 daul core in it. Whats the best xeon I can use in this.

    Reply

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