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  1. #16
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    May 2004
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    the "K" version of i5 2xxx means the on-die clock multiplier is officially "unlocked" so that you can basically "overclock" (or turbo boost), with Intel's blessing, the processor all you want providing that all other components on the platform can provide a stable systems. generally speaking, you don't really want to do so on a production server!

    was it me, I would stay with i5-2500 or 2600 w/o "K", and they are much cheaper as well.
    C.W. LEE, Apaq Digital Systems
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  2. #17
    Any word yet? I was looking to build a 1156 server but SB came a lot quicker than I thought.

  3. #18
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    Aug 2007
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    L.A., CA
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    any word on what? they have just barely been released and this thread is only a few days old.

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  4. #19
    5 days since last reply, just anxious heh

  5. #20
    Join Date
    May 2004
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    firstly, still no firm release date of Xeon E3 series. as far as I know, it will be at least another 4~6 weeks before we can have an operational platform based on Xeon E3 installed on supermicro X9 socket 1155 server board.

    we did get a chance to test core i5-2500 installed on Intel DH67CF desktop board (mini ITX board, 2x DDR3 DIMM, H67 south bridge, Intel 82579V Gb NIC), but CentOS 5.5 installation was not so swift:
    1. there is no working driver (either kernel built-in nor 3rd party) for Intel 82579V NIC port, Intel yet to release an updated e1000e driver nor any new source code to include 82579 chip! thus, can't even compile a workable ".ko" driver for any linux distro.
    2. you must use ACHI mode for any SATA drives attached. can't use "IDE" mode due to the new ICHx controller inside H67.
    3. no graphic mode installation, neither "linux VESA" will work! you must do "linux text" install.
    4. socket 1156 cooler/heatsink works just fine for socket 1155 board. we use Dynatron K2 active blower/heatsink for the intel 1155 board.

    although we didn't test it, but I don't really anticipate issues for windows installation. for CentOS installation, the only work-around is to install a standalone PCI-E based NIC card for Linux installation before Intel releases updated source code for e1000e driver.

    "cat /proc/cpuinfo" does identify i5-2500 as "sandy bridge", it detects "3.3Ghz", and sees all 4 cores.
    C.W. LEE, Apaq Digital Systems
    http://www.apaqdigital.com
    sales@apaqdigital.com

  6. #21
    Join Date
    May 2004
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    Asrock (rebranded Asus) H67M (2x DDR3) or H67M-GE (4x DDR3) can be good candidates for budget socket 1155 servers:
    http://www.asrock.com/mb/overview.asp?Model=H67M
    http://www.asrock.com/mb/overview.asp?Model=H67M-GE
    both comes with Realtek RTL8111E Gb NIC port (the same NIC found on Intel D525MW Atom baord) which is supported by CentOS 5.5 stock kernel

    newegg is selling H67M for $89
    http://www.newegg.com/Product/Produc...82E16813157220
    C.W. LEE, Apaq Digital Systems
    http://www.apaqdigital.com
    sales@apaqdigital.com

  7. #22
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    Aug 2007
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    Will those fit in 1U? Seems like it wont due to higher audio and nic ports?

    EasyDCIM.com - DataCenter Infrastructure Management - Reach Me: wht@fevvo.com
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  8. #23
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    Quote Originally Posted by CGotzmann View Post
    Will those fit in 1U? Seems like it wont due to higher audio and nic ports?
    judging from the picture of rear IO ports shown on Asrock's page, it will fit 1U rear panel.

    just about the only make among major brands you can't use in 1U chassis is MSI which still uses tall audio ports on all their desktop boards.
    C.W. LEE, Apaq Digital Systems
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  9. #24
    Join Date
    Jun 2004
    Location
    Oregon
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    what about the i/o panel? is it necessary?

  10. #25
    Quote Originally Posted by CGotzmann View Post
    Will those fit in 1U? Seems like it wont due to higher audio and nic ports?
    You can always use pliers to rip the back off your i/o panel on the cases
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  11. #26
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    Quote Originally Posted by meyu View Post
    what about the i/o panel? is it necessary?
    we've been installing desktop board without rear IO panel in supermicro 1U rackmount chasis, namely SC512 and SC8111T, since 2002, and never heard an issue in production environment raised by customers.

    with the exceptions of SC510/SC502/SC503 chassis, the rear IO panel of all other supermicro 1U chassis is held by 2 screws, and it's totally removable
    C.W. LEE, Apaq Digital Systems
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  12. #27
    Join Date
    Jun 2003
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    Las Vegas, NV
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    We are using Biostar TH67+ boards in our 1U chassis with good success, and we've already adapted our passive cooling system to work with the platform so no active CPU cooler is required. The only hitch is that you do still have to do a text mode install for CentOS, as the SB integrated video has no support in the CentOS 5.5 installer. We also have a custom I/O shield in production (ETA next week) for the Biostar board that will work with most standard 1U chassis. Our experience with leaving I/O shields out is that it can lead to hot airflow recirculation issues, especially in cabinet environments.
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  13. #28
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    Quote Originally Posted by Rob T View Post
    We are using Biostar TH67+ boards in our 1U chassis with good success, and we've already adapted our passive cooling system to work with the platform so no active CPU cooler is required. The only hitch is that you do still have to do a text mode install for CentOS, as the SB integrated video has no support in the CentOS 5.5 installer. We also have a custom I/O shield in production (ETA next week) for the Biostar board that will work with most standard 1U chassis. Our experience with leaving I/O shields out is that it can lead to hot airflow recirculation issues, especially in cabinet environments.
    not a big fan of Biostar, but I guess everyone's mileage varies. which NIC is on TH67+?

    we do plan to offer Asrock H67M/H67M-GE 1155 board installed in supermicro mini 1U SC512L-260B chassis very soon. due to the infamous "vibrate your drives to death" issue if SC512L's mid-chassis blower runs at full speed, passive cooling is not an option no more! nowadays, we always install active blower fan (Dynatron K2 1155/1156 1U fan) on CPU socket, regardless server board or desktop board, so that CPU fan runs at full speed, then chassis blower is set to run at low or half speed. this arrangement allows excellent cooling to CPU, yet it wholly eliminates the vibration issue.
    C.W. LEE, Apaq Digital Systems
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  14. #29
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    also, can't really use Biostar TH67+ in SC512L because the location 24-pin power connector (located at the end of DIMM slots) which totally blocks air flow from chassis blower.

    actually, most socket 1156/1155 desktop boards, regardless makes, has the 24-pin connector located at the same nagging spot. this certainly limits your choice of desktop board if it is to be installed in the ever popular SC512L chassis. thus far, we found only a few 1155/1156 boards offered by Asrock has the 24-pin connector planted away from blower outlet at SC512L.
    C.W. LEE, Apaq Digital Systems
    http://www.apaqdigital.com
    sales@apaqdigital.com

  15. #30
    Quote Originally Posted by cwl@apaqdigital View Post
    also, can't really use Biostar TH67+ in SC512L because the location 24-pin power connector (located at the end of DIMM slots) which totally blocks air flow from chassis blower.

    actually, most socket 1156/1155 desktop boards, regardless makes, has the 24-pin connector located at the same nagging spot. this certainly limits your choice of desktop board if it is to be installed in the ever popular SC512L chassis. thus far, we found only a few 1155/1156 boards offered by Asrock has the 24-pin connector planted away from blower outlet at SC512L.
    I've had the same issue with some core2quad boards and even a dual xeon board. Sometimes you can get a little leeway by moving the cables as far over to one side as possible. The power supplies have a lot of little intake holes. In some of these boards you can't help but cover some of them, but as long as you can get a good number of them to be unimpeded, it won't be a total disaster.
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