Can I expect big OC improvements by...

By Wrath of God
Dec 9, 2003
Topic Status:
Not open for further replies.
  1. Can I expect big OC improvements by removing the GPU shim and lapping the heatsink ?

    Can anyone post results before and after ?

    Thanx in advance

    Specs:
    AMD XP 2800+ (211x11.5) w/ CoolerMaster Aero 7+
    Asus A7N8X Deluxe Rev. 2 (1007 bios)
    Corsair TwinX 400mhz, PC3200LL (2 x 512) (6,3,2,2)
    WD Raptor HardDrive (10,000 rpm, 8mb cache, ATA150)
    ATI Radeon 9800 Pro w/ Thermaltake Giant 2
    SB Audigy 2
    Lite-on 16x DVD
    Creative 52x Remote CDROM
    Sony 52x/24x/52x Burner
    Zalman ZM-RS6F Theater 6 Headphones
    Altec Lansing ACS56 4.1 Speakers
    PowerTek 500 watt PS (dual fans & gold plated)
    Aspire X-Alien Black Case w/ 6 LED case fans
  2. Vehementi

    Vehementi TechSpot Paladin Posts: 3,199

    No.

    Assuming you mean "big OC improvements" by lowered temps by doing both of those, then

    Removing the GPU shim - no change in temps.

    Lapping the heatsink - Maybe 1 or 2 degrees if it's bad.

    1 or 2 degrees - maybe 1MHz difference if you're lucky. But if you're running at such high speeds that the temperature is the limiting factor...well...:rolleyes:

    IMHO, CPU's are semi-OK to overclock, but video cards is a completely different story. I saw major problems with my first overclocking experiment on my Radeon 8500LE.
  3. Krugger

    Krugger Newcomer, in training Posts: 210

    you left out what you're running it at now, what the highest you can go before seeing artifacts is, and what you're goal is. also what the temps are at now if you can get a reading of that.
    Are you just going to lap the stock heatsink or were you thinking of slapping a new heatsink on there too? I see you already have the giant 2, so i don't think in this case you'll get a huge boost over your current setup, you should notice a slight boost though at least. if you're confident in the procedure go for it i guess, but that's a nice vid card to be playing with...
    here's a good guide i came across, for a 9700, but same idea: http://sid.nrgservers.net/9700mod/
  4. PreservedSwine

    PreservedSwine Newcomer, in training Posts: 375

    I've heard that by removing the R9700 shim many have had good results and better overclocks, but the shim on the R9800 is shorter, and the gpu core makes good contact w/ the heatsink/fan unit. Might get a little better by lapping, but best bet would be to add a cooling solution better than the stock one...
Topic Status:
Not open for further replies.


Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...


Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.