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Author Topic: X5687 testing/tested?  (Read 235 times)
windosmac
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« on: July 08, 2017, 04:25:32 AM »

I searched around a bit finding a few people dismissing the possibility an X5687 in an A1289. If I recall correctly, there have been one or two individuals that have either tried for themselves or heard from the grapevine that it's not compatible. As far as I'm aware, these anecdotes were from tests on single core systems. With the price of a X5687 being quite reasonable now, I wouldn't mind testing on my dual cpu 5,1. Before potentially wasting my time, has anyone seen/read about someone trying these in a dual processor unit, gone through the code and found that they're not supported, or have any other verifiable non-compatible answer?
« Last Edit: July 08, 2017, 04:31:18 AM by windosmac » Logged

genuine 5,1 - X5650's - 4x8gb & 4x4gb reg - pcie boot - 802.11ac BT4.0 - 10.12 - 5/6870 - U2415H DP
flashed 2,1 - X5355's - 8x4gb - 10.10 - 8800GT - U2401F DVI
lowrider
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« Reply #1 on: July 08, 2017, 06:26:29 AM »

You are correct, all the reports I have seen are related to SP 5,1 cMPs.  Results were negative, the X5687 did not work.  Because of what I read and the research I did, I went ahead and put X5677s in my 5,1 cMP.  If you look at the release date of the X5687, you'll see that it was released in February of 2011.  This is after the date of the firmware for the 5,1 cMP.  Both the 2010 and 2012 cMPs have the same firmware.  So, it was my thought that the X5687 doesn't work because it was newer than the firmware and the firmware would therefore not recognize the CPU.

Look at this link, and you'll see that there really isn't a helloflot of difference in performance between the two.

http://cpuboss.com/cpus/Intel-Xeon-X5687-vs-Intel-Xeon-X5677

Lou
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windosmac
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« Reply #2 on: July 08, 2017, 06:48:29 AM »

You are correct, all the reports I have seen are related to SP 5,1 cMPs.  Results were negative, the X5687 did not work.  Because of what I read and the research I did, I went ahead and put X5677s in my 5,1 cMP.  If you look at the release date of the X5687, you'll see that it was released in February of 2011.  This is after the date of the firmware for the 5,1 cMP.  Both the 2010 and 2012 cMPs have the same firmware.  So, it was my thought that the X5687 doesn't work because it was newer than the firmware and the firmware would therefore not recognize the CPU.

Look at this link, and you'll see that there really isn't a helloflot of difference in performance between the two.

http://cpuboss.com/cpus/Intel-Xeon-X5687-vs-Intel-Xeon-X5677

Lou

I didn't consider the release date, that makes sense. There are a few recently reported benchmarks (geekbench) with 5,1 users running X5687's, it's likely then that these are in Hackintoshs or tested via bootcamp? Do you (or anyone else) happen to know how that system information is collected?
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genuine 5,1 - X5650's - 4x8gb & 4x4gb reg - pcie boot - 802.11ac BT4.0 - 10.12 - 5/6870 - U2415H DP
flashed 2,1 - X5355's - 8x4gb - 10.10 - 8800GT - U2401F DVI
lowrider
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« Reply #3 on: July 08, 2017, 04:20:30 PM »

^^^^Yes, you are correct.  All the results that I have seen for Geekbench scores are for folks running X5687s in Hackintoshes.  If the processor doesn't work in the MacOS, I see no reason it would work in Bootcamp on a Macintosh.

Lou

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