How to repair R300 Core (radeon 9500/9700)

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Alladinsane
    New Member
    • Feb 2007
    • 8
    #1

    How to repair R300 Core (radeon 9500/9700)

    This might seem a bit ambitious for a first post, but here goes...

    I was hoping someone here had some experience repairing things such as this. The GPU is in good working order it seems. However, without this cap functionality is limited (obviously). So, I have sent in a ticket to ATI hoping they could provide me with info about what the part is exactly so I can purchase it.. however I am not too sure they will assist me in this matter. Also, as it is so small and an SMD, I am not sure how I would get it in there guessing that normal soldering won't work.. not sure though, I am willing to try anything. I have included a link to a pic that shows the exact cap that is missing. Any help would be greatly appreciated.

    In case you are wondering, I think I might have knocked it off while i was scraping off the crappy thermal compound off the GPU in order to put in a new hsf as it seemed to be experiencing some heat-related artifacting.

    thanks
    Tags: None
    • kc8adu
      Super Moderator
      • Nov 2003
      • 8832
      • U.S.A!
      #2
      Re: How to repair R300 Core (radeon 9500/9700)

      without the card in hand its hard to tell what they are.
      i know they are vcore supply bypass caps.
      they will be low voltage low esr mlcc.
      i would look at a scrap late model mobo and rob one of the same size that shows very low esr out of circut.
      they are not likely to be a critical value.
      hell it may work fine without it.

        Comment

        • linuxguru
          Badcaps Legend
          • Apr 2005
          • 1564
          #3
          Re: How to repair R300 Core (radeon 9500/9700)

          Probably easier to pick one off a dead/older memory DIMM, which will have a bunch of small bypass caps near each DRAM chip.

            Comment

            • Alladinsane
              New Member
              • Feb 2007
              • 8
              #4
              Re: How to repair R300 Core (radeon 9500/9700)

              So you all don't think that this cap would affect the card that much? I wodner what happened then. I can't get the card to work in AGP mode at all, according to smartgart. It can't do agp read or write.

                Comment

                • Per Hansson
                  Super Moderator
                  • Jul 2005
                  • 5895
                  • Sweden
                  #5
                  Re: How to repair R300 Core (radeon 9500/9700)

                  All those resistors do is change settings, i.e. remove one you remove a feature...

                  It's how they make different models... If you add another resistor at one place there it will become the professional CAD/CAM version of the card... Lotsa info on the net about this...
                  "The one who says it cannot be done should never interrupt the one who is doing it."

                    Comment

                    • kc8adu
                      Super Moderator
                      • Nov 2003
                      • 8832
                      • U.S.A!
                      #6
                      Re: How to repair R300 Core (radeon 9500/9700)

                      nope those are vcore bypass caps.

                        Comment

                        • Per Hansson
                          Super Moderator
                          • Jul 2005
                          • 5895
                          • Sweden
                          #7
                          Re: How to repair R300 Core (radeon 9500/9700)

                          Sorry I can't be bothered to find a R300 card but here is a R420 where the method was changed to the same AMD uses on their processor to select which multiplier it will run at and other misc settings; laser cutting of traces... The older R300 core uses resistors for that instead

                          http://www.techpowerup.com/articles/...ng/vidcard/100
                          "The one who says it cannot be done should never interrupt the one who is doing it."

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • Document Archive
                              ATI R300 / Radeon 9700 Schematic & Board View
                              by Document Archive
                              ATI R300 / Radeon 9700 Schematic & Board View

                              ATI's R300 GPU uses the R300 architecture and is made using a 150 nm production process at TSMC. With a die size of 215 mm² and a transistor count of 110 million it is a medium-sized chip. R300 supports DirectX 9.0 (Feature Level 9_0). Modern GPU compute technologies are not available. It features 8 pixel shaders and 4 vertex shaders, 8 texture mapping units and 8 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support).

                              The Radeon 9700 was a...
                              10-01-2024, 01:13 PM
                            • Document Archive
                              AMD Radeon R9 290 / R9 380 / R9 390 Schematic & Board View
                              by Document Archive
                              AMD Radeon R9 290 / R9 380 / R9 390

                              The Radeon R9 290 was a high-end graphics card by AMD, launched on November 5th, 2013. Built on the 28 nm process, and based on the Hawaii graphics processor, in its Hawaii PRO variant, the card supports DirectX 12. This ensures that all modern games will run on Radeon R9 290. The Hawaii graphics processor is a large chip with a die area of 438 mm² and 6,200 million transistors. Unlike the fully unlocked Radeon R9 290X, which uses the same GPU but has all 2816 shaders enabled, AMD has disabled some shading units on the Radeon R9 290 to reach the...
                              10-01-2024, 12:46 PM
                            • Document Archive
                              AMD Radeon RX Vega 56 / RX Vega 64 Schematic & Board View
                              by Document Archive
                              AMD Radeon RX Vega 56 / RX Vega 64 Schematic & Board View

                              The Radeon RX Vega 56 is a high-end graphics card by AMD, launched on August 14th, 2017. Built on the 14 nm process, and based on the Vega 10 graphics processor, in its Vega 10 XL variant, the card supports DirectX 12. This ensures that all modern games will run on Radeon RX Vega 56. The Vega 10 graphics processor is a large chip with a die area of 495 mm² and 12,500 million transistors. Unlike the fully unlocked Radeon RX Vega 64, which uses the same GPU but has all 4096 shaders enabled, AMD has disabled some shading...
                              10-01-2024, 01:07 PM
                            • Document Archive
                              AMD Radeon RX 470 / RX 580 Schematic & Board View
                              by Document Archive
                              AMD Radeon RX 470 / RX 580 Schematic & Board View

                              The Radeon RX 470 is a mid-range graphics card by AMD, launched on August 4th, 2016. Built on the 14 nm process, and based on the Ellesmere graphics processor, in its Polaris 10 PRO variant, the card supports DirectX 12. This ensures that all modern games will run on Radeon RX 470. The Ellesmere graphics processor is an average sized chip with a die area of 232 mm² and 5,700 million transistors. Unlike the fully unlocked Radeon RX 480, which uses the same GPU but has all 2304 shaders enabled, AMD has disabled some shading units...
                              10-01-2024, 12:52 PM
                            • AllElectronicsRepairs
                              Resistances of V-Core and V-RAM for AMD Radeon RX 6900 XT
                              by AllElectronicsRepairs
                              Hi Guys, what should be the resistances to Ground of V-Core channels and V-RAM for AMD Radeon RX 6900 XT? Is 67.9 mOhm for V-Core OK? I am trying to diagnose this Graphics Card and check for any shorts first. Like none of the power rails seem to be shorted, but I want to make sure before injecting any (low) voltage to see if any component raises its hand... Kind regards, Jerry..
                              01-28-2025, 09:47 PM
                            • Loading...
                            • No more items.
                            Working...