Results 1 to 3 of 3

Thread: Tj max

  1. #1
    Senior Member looney's Avatar
    Join Date
    Apr 2008
    Posts
    754
    Thanks
    369
    Thanked
    20 times in 18 posts
    • looney's system
      • Motherboard:
      • Gigabyte P35-DS3
      • CPU:
      • Intel Q6600 @ 3Ghz
      • Memory:
      • 2GB Ballistix & 2GB PNY
      • Storage:
      • Seagate 7200.11 320GB & WD 1TB
      • Graphics card(s):
      • MSI R6850 1GB
      • PSU:
      • Corsair TX650
      • Case:
      • Antec 300
      • Operating System:
      • Ubuntu 11.04 & Win 7 Pro
      • Monitor(s):
      • HP pavillion f1723 17"
      • Internet:
      • 8mbps

    Tj max

    What exactly is TJ max, in rgerads to temps?

  2. #2
    Admin team peterb's Avatar
    Join Date
    Aug 2005
    Location
    Southampton
    Posts
    19,340
    Thanks
    2,878
    Thanked
    3,389 times in 2,682 posts
    • peterb's system
      • Motherboard:
      • Nascom 2
      • CPU:
      • Z80B
      • Memory:
      • 48K 8 bit memory on separate card
      • Storage:
      • Audio cassette tape - home built 5.25" floppy drive
      • Graphics card(s):
      • text output (composite video)
      • PSU:
      • Home built
      • Case:
      • Home built
      • Operating System:
      • Nas-sys
      • Monitor(s):
      • 12" monocrome composite video input
      • Internet:
      • No networking capability on this machine

    Re: Tj max

    It is the maximum junction temperature that the CPU's core is allowed to achieve. It is specified in the processor's data sheet, and in the case of Intel processors (I haven't looked at AMDs) the processor starts throttling at an unspecified point before that temperature is reached to protect itself from damage. At Tj max, the case temperature will be (typically) about 20C lower (according to intel's spec sheets)
    (\__/)
    (='.'=)
    (")_(")

    Been helped or just 'Like' a post? Use the Thanks button!
    My broadband speed - 750 Meganibbles/minute

  3. Received thanks from:

    looney (24-05-2008)

  4. #3
    No-one's Fanboi Thorsson's Avatar
    Join Date
    Nov 2004
    Location
    Neverneverland
    Posts
    2,749
    Thanks
    47
    Thanked
    93 times in 92 posts
    • Thorsson's system
      • Motherboard:
      • ASUS P8Z77-V PRO
      • CPU:
      • i5 3570k
      • Memory:
      • 2x8Gb Corsair Vengeance PC1866
      • Storage:
      • 256M4 SSD; 2Tb 7200RPM Barracuda; 2Tb Linkstation
      • Graphics card(s):
      • EVGA GTX970 SC
      • PSU:
      • Corsair HX650
      • Case:
      • Antec 300
      • Operating System:
      • Win10 64
      • Monitor(s):
      • Dell 2515H
      • Internet:
      • Fibre Optic 30Mb

    Re: Tj max

    Also at an unspecified point above TJMax (but ~20C) the processor will shut down.

    It's not always specified in the processor's data sheet. The reason that that the various CPU temp measures have had problems, and why they tend to disagree, is that Intel hasn't specified TJMax in many cases, so the authors estimated it. Moreover Intel has changed TJMax on the same chip with different fabrications.

    Do a Google on Real Temp vs CoreTemp and you should find some very interesting discussions on this topic.

  5. Received thanks from:

    looney (25-05-2008)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 36
    Last Post: 17-07-2008, 06:24 PM
  2. Replies: 3
    Last Post: 20-04-2007, 09:32 PM
  3. AW9D MAX OVerclocking RESULTS
    By gilgamesh in forum abit.care@HEXUS
    Replies: 2
    Last Post: 01-12-2006, 01:14 AM
  4. Max Rules
    By Trippledence in forum Networking and Broadband
    Replies: 0
    Last Post: 11-04-2006, 04:57 PM
  5. Overclocking Question
    By planetgong in forum PC Hardware and Components
    Replies: 13
    Last Post: 12-12-2005, 09:29 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •