Ryzen 9000 delid leads to first Zen 5 death — shared photos expose cracked dies and leftover solder

Ryzen 9000 CPU
Ryzen 9000 CPU (Image credit: Tony Yu)

Content creator and extreme overclocker Tony Yu had the rare privilege of being one of (if not the) first people to delid one of AMD's brand new Ryzen 9000 processors, which will contend with the best CPUs. Sadly, the content creator revealed photos of his delidding attempt failing, resulting in a cracked and broken Zen 5 CPU.

The Zen 5 chip can be seen with the IHS removed from the CPU. The exposed die shot reveals the unsuccessful delid, revealing a cracked I/O die on the Ryzen chip and an unclean break on the IHS, with material still mated to the soldering points that shouldn't be where the I/O die would be located.

Yu's unsuccessful attempt shows how dangerous delidding can be. Delidding is a term that specifies removing the integrated heat spreader off of a semiconductor chip, exposing the physical die underneath. Delidding difficulty depends significantly on the specific CPU model and whether or not the die is soldered to the IHS. If the CPU utilizes thermal paste between the die and the IHS, it is generally easier to remove the IHS. If the chip is soldered, excellent care and work must be executed to ensure the chip survives the delidding process.

Delidding is done primarily by overclockers, enthusiasts, and extreme overclockers to boost cooling performance. Removing the IHS enables users to access the CPU die directly, allowing them to cool the chip directly from the die. Attaching a cooler directly to the die is more energy efficient. Generally, it results in lower temperatures than transferring the heat through the IHS and directly to the CPU cooler.

There may not be much reason to delid a Ryzen 9000 CPU since AMD uses solder to install the IHS on Ryzen 9000, which yields better thermal conductivity than thermal paste — which Intel is typically known for doing. So, for regular usage, users shouldn't gain significant temperature improvements from delidding AMD's latest processors specifically.

Regardless, it is cool to see what the CPU looks like underneath. Yu is also an extreme overclocker, so there's a good chance he delidded the chip for extreme overclocking.

Ryzen 9000 is AMD's latest generation of processors based on the Zen 5 CPU architecture. Reviews for The Ryzen 5 9600X and Ryzen 7 9700X went live earlier this morning. Both chips will be available starting tomorrow. Meanwhile, AMD's higher-end Ryzen 9 9950X and 9900X will go on sale next Thursday, August 15.

Aaron Klotz
Contributing Writer

Aaron Klotz is a contributing writer for Tom’s Hardware, covering news related to computer hardware such as CPUs, and graphics cards.

  • bit_user
    As this isn't the first CPU with a soldered IHS, I wonder whether there are somewhat reliable techniques for de-lidding them?

    It seems to me that you'd basically have to heat the CPU to the melting point of the solder, while removing the IHS. That sounds rather tricky & more than a little dangerous.

    I guess the other thing you might do is just grind off the IHS.
    Reply
  • hotaru251
    bit_user said:
    , I wonder whether there are somewhat reliable techniques for de-lidding them?
    heating up the IHS would help as you dont "need" it to be melting point but anywhere hot enough to weaken its "grip" as you apply some force to ihs would help over trying to force it off cold.
    Reply
  • Notton
    I suppose the more painstaking method of sawing through the 8 dots of epoxy, and then heating up the IHS with a heatgun would give better results?
    Reply
  • drtweak
    Oh man. Miss the days of the P3 era Socket 370 CPU where the die was exposed. I remember taking my 600Mhz Celeron to 1 Ghz on a nice zalman all copper cooler with some Artic Silver. Ran better than the P3 in my main machine depending on the work load.
    Reply
  • SkyBill40
    I've never understood the point of this, which often results in situations like this. All for a very minimal performance tweak. For the average consumer, this is a bad idea and not worth any potential for gains as the risks far outweigh the reward.
    Reply
  • USAFRet
    SkyBill40 said:
    I've never understood the point of this, which often results in situations like this. All for a very minimal performance tweak. For the average consumer, this is a bad idea and not worth any potential for gains as the risks far outweigh the reward.
    For most people, yes, this is useless.

    For those out on the edge, that do this as a hobby (or even making some money)...this is what they do.
    Sometimes to the point of destruction, like here.
    Reply
  • bit_user
    SkyBill40 said:
    I've never understood the point of this, which often results in situations like this. All for a very minimal performance tweak.
    I think you're referring to when people remove the IHS, replace the TIM, and put it back on (usually without glue). That's the low risk/reward version and doesn't pay off like it did back in the Skylake era.

    What you can't deny about removing the IHS is the benefits of doing direct-die waterblock cooling. It's a lot of trouble, but you certainly couldn't say it provides negligible benefits!
    Reply
  • SkyBill40
    bit_user said:
    I think you're referring to when people remove the IHS, replace the TIM, and put it back on (usually without glue). That's the low risk/reward version and doesn't pay off like it did back in the Skylake era.

    What you can't deny about removing the IHS is the benefits of doing direct-die waterblock cooling. It's a lot of trouble, but you certainly couldn't say it provides negligible benefits!
    Nah, I was referring to removing the IHS and had no consideration for those who choose to reapply TIM and reassemble. The opportunity for failure still remains and while the DD cooling you mention may have some significant benefits, is that still worth the risk for the average hobbyist that could end up destroying their CPU? I don't personally feel it is, but I'm not interested in trying it anyway. To each their own.
    Reply
  • USAFRet
    SkyBill40 said:
    Nah, I was referring to removing the IHS and had no consideration for those who choose to reapply TIM and reassemble. The opportunity for failure still remains and while the DD cooling you mention may have some significant benefits, is that still worth the risk for the average hobbyist that could end up destroying their CPU? I don't personally feel it is, but I'm not interested in trying it anyway. To each their own.
    Delidding your CPU is only slightly less extreme than adding nitrous oxide is in the car world.

    Only for those out on the edge, and both can result in the death of your component.
    Reply
  • funguseater
    I miss the old days of whacking the CPU with a hammer, I havn't had to use my bench vise in years :(
    Reply