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Unclocking anyone??

Discussion in 'Graphics Cards' started by daveydave, 22 Jul 2006.

  1. daveydave

    Mobster

    Joined: 1 May 2006

    Posts: 2,598

    Location: UK

    alright fellas, im jus wondering is anyone having to unclock their cards in this heat at the mo?? ive got a x800 gto with a stock cooler and im having to underclock it to about 300mhz on both memory and core
     
  2. ACESHIGH

    Mobster

    Joined: 17 Aug 2005

    Posts: 4,305

    If it is due to heat tere are a number of things you need to consider. What is the cooling like in your case & what is the temp in your room? Where is the pc (next to a window where the sun shines directly onto it)?

    Adjusting these may help.
     
  3. daveydave

    Mobster

    Joined: 1 May 2006

    Posts: 2,598

    Location: UK

    all things considered im still having to underclock...is anyone else
     
  4. lay-z-boy

    Sgarrista

    Joined: 27 Sep 2004

    Posts: 9,231

    Location: Nantwich

    Computer parts should always be able to run at stock speeds even under severe heat (desert) providing the cooler is mounted correctly. :)
     
  5. Raikiri

    Capodecina

    Joined: 5 Jul 2005

    Posts: 17,780

    Location: Brighton

    300mhz down on the core? I am suprised it runs at all at such a low frequency (the cores were not designed to). Get some better cooling, remount the current heatsink with AS5, improve case cooling. Do something though :eek:

    My x800gto is running overclocked with a vf700 alcu @ 5v fan speed
     
  6. daveydave

    Mobster

    Joined: 1 May 2006

    Posts: 2,598

    Location: UK

    i will get a new cooler its gona b the artic or the zalman...which do u recommend guys
     
  7. Angilion

    Man of Honour

    Joined: 5 Dec 2003

    Posts: 18,775

    Location: Just to the left of my PC

    I have reduced my cooling recently, to reduce noise. I'm down to just one case fan (front intake), with a fan on the CPU cooler doubling as case extract, one on the graphics card and two in the PSU. That's in a hot room (upper floor, insulated loft, you know what the weather's like). Everything's running at the usual overclock. Admittedly, temps are up about 10C on normal, due to the weather, but normal is very low.
     
  8. Boogle

    Mobster

    Joined: 17 Oct 2002

    Posts: 4,505

    Location: GREAT Britain

    That makes no sense, the clock is just how fast everything is 'updated'.
    Also, when the cores are first tested using a device that 'emulates' hardware, the GPU will be lucky to run at 1mhz.
     
  9. wiggy

    Hitman

    Joined: 30 Jan 2004

    Posts: 770

    Location: Milton Keynes, Bucks

    Out of interest what temps are you getting at stock? Mine runs at about 55c idle in this heat and 78c load, stock cooler.
     
  10. Raikiri

    Capodecina

    Joined: 5 Jul 2005

    Posts: 17,780

    Location: Brighton


    Start underclocking your CPU, it will come to a point where it is unstable. I assumed this would apply to all equipment running a frequency they were not not designed to, same as overclocking too far causes problems :)

    The zalman IMO, the arctic acceleros are good but do not fit x800 cards.
     
    Last edited: 22 Jul 2006
  11. cokecan

    Sgarrista

    Joined: 4 Jan 2004

    Posts: 7,662

    Location: Nottingham

    im usin an arctic cooler on my x800pro, though not the same card, very similar. i get idle temps of around 38 - 42 in this heat. usually around 35 when the weathers a bit cooler
     
  12. daveydave

    Mobster

    Joined: 1 May 2006

    Posts: 2,598

    Location: UK

    bout the same but craped out few times wen temps got too high
     
  13. wiggy

    Hitman

    Joined: 30 Jan 2004

    Posts: 770

    Location: Milton Keynes, Bucks

    I take off the side or top panel when it hot in my room, keeps it a little cooler. Hopefully this heat wont last too much longer, i do have a naff case!
     
  14. Boogle

    Mobster

    Joined: 17 Oct 2002

    Posts: 4,505

    Location: GREAT Britain

    Thats most likely the motherboard itself causing the instability, not the CPU. Multiple clocks on the motherboard, FSB, Memory, PCI, AGP/PCI-E. If they're not in sync, then you get instability :) Tis why some motherboards are better at overclocking than others.