Intel xeon e3 1240v2 question for Z77 compatibility

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Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Mon Mar 11, 2013 2:07 pm

Am in the process of building a new PC ( thanks to the TR Sweet Spot recommendations) however I have gone the Xeon E3 series route for my CPU.
I had originally ordered the E3 1230v2 as it is explicitly stated in Ark that it is compatible with the Intel Z77 Spur Lake mobo which I have also ordered.
They (the etailer) informed me that this CPU was out of stock and offered the step up CPU above.

Looking at Ark however, the 1240 is NOT listed in the compatible CPU list,while even the higher end CPUs in this series are.

Will this CPU work in this mobo? The custom builders are, ahem , building it for me and they said they will test and hold thumbs, but I'm pretty confident it should work if the BIOS is updated.
Am I correct in this assumption or should I just cancel the Xeon order and grab a 3770k and not worry and delay my build further?

Thanks in advance
Intel Xeon E3 1240v2 stock; Intel Z77 Spur Lake mobo; Corsair Vengeance 8 GB RAM; Sapphire Radeon 7950; WD 3TB RED ; Intel 320 120GB SSD, Corsair HX650 PSU; Corsair 650D Casing; Dell 2412M REV A05 monitor (all incoming)
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Mon Mar 11, 2013 3:34 pm

If the chip stepping is the same, it will certainly work... but why are you going for a Xeon in a z77 board?
4C8T for a better price than a 3770K: good justification
Better performance than 3570K: not really, a 3570K will clock a lot higher
ECC RAM: doesn't work in Z77, just get a 3770k
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It will work

Postposted on Mon Mar 11, 2013 3:55 pm

Clearly its just an oversight, or they didn't explicitly test it.

Its only a real problem when you run into different TDP limits like on some of their ITX boards they cap at 65W on purpose.

This one will take even 89W:

Intel® Xeon® Processor E3 Family
Expand to see the details [Compatible] E3-1290V2 3.70 GHz Yes 8 MB N/A 0055 All
Expand to see the details [Compatible] E3-1275V2 3.50 GHz Yes 8 MB N/A 0055 All
Expand to see the details [Compatible] E3-1265LV2 2.50 GHz Yes 8 MB N/A 0055 All
Expand to see the details [Compatible] E3-1245V2 3.40 GHz Yes 8 MB N/A 0055 All
Expand to see the details [Compatible] [Add-in graphics card required. Click icon to see more info.] E3-1230V2 3.30 GHz No 8 MB N/A 0055 All
Expand to see the details [Compatible] E3-1225V2 3.20 GHz Yes 8 MB N/A 0055 All
Expand to see the details [Compatible] [Add-in graphics card required. Click icon to see more info.] E3-1220V2 3.10 GHz No 8 MB N/A 0055 All


I would also mention 3770k lacks VT-d if OP uses it, and intel claims some of their Z77 boards DO support it. (used to be only sure bet were server and Q series)
Equivalent E3 xeons are usually cheaper if you don't have microcenter nearby.
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Mon Mar 11, 2013 4:45 pm

It will work. I just got my best friend to buy one and we built it the other day, it runs amazingly. You wont need ECC RAM so you'll be fine. The i5-3550k is definitely comparable however. If you need 8 cores go with the Xeon, if you don't save the few extra bucks and go with the i5.
CPU: Intel Core-i7 2600 GPU: Nvidia GTX 770 4GB MoBo: ASRock z77 Pro4 RAM: (2x8) 16GB G.Skill 1600MHz Case: Thermaltake Commander PSU: 650W SeaSonic X SSD: 128GB Crucial M4 SSD HDD: 500GB Western Digital Green OS: Windows 7
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Mon Mar 11, 2013 6:36 pm

I'd be surprised if it didn't work. I have a 1230 v2 in my z77 board at work. But it is very true that hyperthreading delivers far less that real cores. My Xeon 1230 v2 is just 20% faster at rendering than the i5 3570. An i5 3570K could easily catch up to the Xeon with a little bit of overclocking. As others have said, the i5 3570K is a better buy unless you really need the extra threads. Or ECC memory, which won't work in a z77 board - you need a C204 or C206 board for that.

Oh, and if you can afford it and really do need the extra threads, the i7 3770K is definitely the better choice as it will give you the additional threads and the ability to run an overclock. A modest overclock (25%-30% is very modest with Ivy Bridge) will make the extra cost worth it. You can't overclock the Xeons other than setting all cores to run at the max turbo speed. The i7 3770K will clock far beyond that.

tl;dr: unless you *really* need the threads or else you need ECC memory, give the Xeon a pass.
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Mon Mar 11, 2013 7:22 pm

Have the Xeon E3 1240 V2 on a Asrock mobo. The chip runs at 3.8 GHz on two cores, 3.7 GHz on three cores, and 3.6 GHz on all four cores with Hyperthreading.
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Tue Mar 12, 2013 3:00 am

Thanks all for the replies :)

Not looking to over-clock CPU at all, just looking at a good all-round system for various tasks.
The price difference between the 1240 and the 3770k here in South Africa is around R700 or roughly $90 !
The Rand-Dollar exchange rate fluctuates daily down here so any delay can be costly ( sitting at around R9 to $1) Ouch!
I have rather spread this difference of the total budget into an Intel 335 SSD for OS and the WD red 3TB for storage.
Will let you know what the system builders say.
Intel Xeon E3 1240v2 stock; Intel Z77 Spur Lake mobo; Corsair Vengeance 8 GB RAM; Sapphire Radeon 7950; WD 3TB RED ; Intel 320 120GB SSD, Corsair HX650 PSU; Corsair 650D Casing; Dell 2412M REV A05 monitor (all incoming)
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Re: Intel xeon e3 1240v2 question for Z77 compatibility

Postposted on Tue Mar 12, 2013 5:58 am

E3 1240v2 uses the same silicon as its desktop counterpart, so it will work with the same chipsets. The only caveat is if you want to use ECC on the Xeon chip, you'll need a motherboard with ECC support.
Ivy Bridge i5-3570K@4.0Ghz, Gigabyte Z77X-UD3H, 2x4GiB of PC-12800, EVGA 660Ti, Corsair CX-600 and Fractal Refined R4 (W). Kentsfield Q6600@3Ghz, HD 4850 2x2GiB PC2-6400, Gigabyte EP45-DS4P, OCZ Modstream 700W, and PC-7B.
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