3 legged quad core Q6600 in a HP dx2300 RRS feed

  • Question

  • I have a HP dx2300 that I took out the Pentium 4 3.2 GHz CPU out and put in a Q6600 quad 2.4 GHz CPU with 4 GB of memory. This works fine for XP and 2003 but Vista, 2008 and windows 7 will not install. So I took out the Quad Q6600 and put in the Pentium 4 and installed Windows 7. Then I put the Quad Q6600 back in booted to safe mode and disabled 1 of the cores. Running 3 cores it works fine. But if I enable the forth core it locks up immediately.

    • Edited by Wilbear Sunday, May 31, 2009 7:59 AM Spell
    Sunday, May 31, 2009 7:54 AM


All replies

  • I wonder if XP was actually using all 4 cores though, sometimes a bios update supports newer processors as well
    Sunday, May 31, 2009 2:47 PM
  • The dx2300 uses an Intel 946GZ chipset.

    Here's a CPU lis for an Intel-made motherboard:

    No quad CPUs are supported. Maybe HP/Compaq supports more, but I wouldn't count on that.

    I have no explanation as to how you were able to install XP but none of the more recent OSes. I recall that Vista was supposed to be more persnickety than XP about defective RAM; perhaps that carries over to CPUs that don't work quite right in an unsupported mainboard.
    Sunday, May 31, 2009 4:40 PM
  • The CPU usage in XP shows 4 cpu graphs with activity, but Windows 7 also shows 4 CPU 0-3 graphs with activity. The original HP windows did not work with Quad. Used OEM multi processor XP pro disk. Quad drive. Quad OS.
    Sunday, May 31, 2009 11:16 PM
  • The HP dx2300 uses a MSI  MS-7336 motherboard. The retail 946GZ Neo Series MS-7279 does support the Q6600 CPU with a note saying thath the 800 MHz buss is over clocked to 1033 MHz.
    Monday, June 1, 2009 12:27 AM
  • Have you got the latest bios? That often updates or fixes cpu support..
    1.14 Rev. A
    18 Dec 2008
    Monday, June 1, 2009 1:07 AM
  • I am using 1.14 bios from HP.
    Monday, June 1, 2009 1:35 AM
  • Queria preguntar si pudiste hacer funcionar el computador con el quad core,yo tengo el mismo problema.


    Saludos Cordiales.

    Thursday, October 28, 2010 5:54 PM
  • Could be a power issue?
    • Proposed as answer by Joshua Bennett Wednesday, February 6, 2013 10:38 PM
    Sunday, October 31, 2010 7:00 AM
  • Hello Wilber,

    Do you have any updates on this? I just received a dx2300 and would like to try to put a Q6600. Were you able to get the fourth core runnning?


    Saturday, March 15, 2014 10:45 AM
  • I got a q6600 SLACR and its working perfectly fine on my hp dx2300, I get all 4 cores. I do have a 500w PSU, and I suspect the OEM 250w is causig the 4h core to fail. Plus I am win 8.1, if that makes a difference.

    Thanks, a lot Wilber, without this post, I would have never gone for a quad core. After reading above, I thought, 3 cores are still better than 2 cores, but when I tried, everything was perfect. Hurray!

    • Proposed as answer by kakatoori Wednesday, February 11, 2015 12:42 AM
    • Edited by kakatoori Wednesday, February 11, 2015 12:50 AM
    • Unproposed as answer by kakatoori Thursday, November 5, 2015 6:56 PM
    Wednesday, February 11, 2015 12:42 AM
  • More updates:

    So it looks like what OP says is true. I got a new SSD and when tried to reinstall windows 8.1, it would stuck in the setup. So i took the ssd, put it in my laptop, installed Windows 8 and placed it back.

    Windows 8 Booted, I started to install graphic driver but then suddenly it got stuck. I was like how come my HDD windows 8 is working fine but this one is getting stuck.

    After doing a lot of trial and error, found that setting Power Options to  "High Performance" seems to do the trick, its been running Crysis 3 for the past 3 hours, no problem, all 4 cores running.

    Aftermath: the system gets stuck when Windows tries to underclock the cpu from 2.4Ghz to 1.56Ghz. Setting "High Performance" prevents this, thus allowing the system to run.

    • Proposed as answer by EvkaX155 Friday, September 18, 2015 3:54 PM
    Thursday, February 19, 2015 6:18 AM
  • DUDE. I FREAKING LOVE YOU. Setting the power plan to High Performance fixed my problem!! I can't thank you enough! :)
    Friday, September 18, 2015 3:53 PM
  • Glad that you found it useful.

    WARNING: At your own risk

    FYI, I went ahead and got a qx6800 and it also worked with the above trick. 4 cores at 3Ghz. However, this cpu is 130w and the motherboard is 95w, so there is a risk. Also, the fans are running at full speed most of the time, CPU idles at 60 deg C.

    • Edited by kakatoori Thursday, November 5, 2015 6:56 PM
    • Proposed as answer by kakatoori Thursday, November 5, 2015 6:56 PM
    Thursday, November 5, 2015 6:55 PM