# Came Across 1st Grin ASIC of the World **URL:** \ **Category:** Mining\ **Created:** [May 31, 2020, 11:19pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383 "2020-05-31T23:19:55Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![gary](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/gary/32/174_2.png) [@gary](https://forum.grin.mw/u/gary)\ **Post date:** [May 31, 2020, 11:19pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/1 "2020-05-31T23:19:55Z")
**Finally saw this Grin ASIC ☀ hope to see the miner soon ⚽ 🏃‍♂️** (Came across Thomas from MicroComputer, took a few pictures together with this first Grin ASIC in the world 😁) Thomas said this chip was produced at 2020 week 18, as labeled on the chip. ![WechatIMG163](https://canada1.discourse-cdn.com/flex036/uploads/grin/original/2X/f/f9369d0f5a04120586c5f7896fa5ff10d673831e.jpeg) ! ![Screenshot 2020-06-01 at 6.42.27 AM](https://canada1.discourse-cdn.com/flex036/uploads/grin/original/2X/b/bc2011d389ae66a9e92ed36fa2ba55e7e5a2bf28.png) - News (in Chinese) from MicroComputer: [https://mp.weixin.qq.com/s/xqn-O7M9XX8FvmW3YBI9Ew](https://mp.weixin.qq.com/s/xqn-O7M9XX8FvmW3YBI9Ew) ---
**Author:** ![Kurt](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/kurt/32/3361_2.png) [@Kurt](https://forum.grin.mw/u/Kurt)\ **Post date:** [May 31, 2020, 11:40pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/2 "2020-05-31T23:40:44Z")
Nice little Asic. Come back Gary 😻 👻 ---
**Author:** ![betajuice](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/betajuice/32/966_2.png) [@betajuice](https://forum.grin.mw/u/betajuice)\ **Post date:** [June 1, 2020, 8:35am UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/3 "2020-06-01T08:35:56Z")
Is this asic presumably compatible with the last mining algorithm change? (ie. it won’t become outdated?) ---
**Author:** ![Seppat](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/seppat/32/3125_2.png) [@Seppat](https://forum.grin.mw/u/Seppat)\ **Post date:** [June 1, 2020, 3:00pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/4 "2020-06-01T15:00:55Z")
Well ASICs would be for c31 (or c32?) not c29. C29 changes. C31 doesn’t. ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [June 1, 2020, 3:01pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/5 "2020-06-01T15:01:24Z")
Thanks for the info , Gary! Could you possibly ask them if the ASICs uses lean or mean (or the hybrid slean) mining? Note that lean C32 would require 512/k MB SRAM + 512 MB DRAM for a k-pass solver, while a mean C32 would require about 16GB, and slean could use anything in between. ---
**Author:** ![SiriusB](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/siriusb/32/1800_2.png) [@SiriusB](https://forum.grin.mw/u/SiriusB)\ **Post date:** [June 1, 2020, 4:08pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/6 "2020-06-01T16:08:11Z")
Tagging to keep updated Thank you, further any more information, please. ---
**Author:** ![Anynomous](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/anynomous/32/2928_2.png) [@Anynomous](https://forum.grin.mw/u/Anynomous)\ **Post date:** [June 1, 2020, 6:37pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/7 "2020-06-01T18:37:05Z")
Tagging as well. 80\* RT2080TI, would be nice if it can deliver on that promise. Less nice for my RTX 2080Ti’s though, which would become obsolete. ---
**Author:** ![betajuice](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/betajuice/32/966_2.png) [@betajuice](https://forum.grin.mw/u/betajuice)\ **Post date:** [June 1, 2020, 10:55pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/8 "2020-06-01T22:55:47Z")
What happened to those obelisk GRIN miners? ---
**Author:** ![gary](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/gary/32/174_2.png) [@gary](https://forum.grin.mw/u/gary)\ **Post date:** [June 1, 2020, 11:04pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/9 "2020-06-01T23:04:51Z")
@betajuice Mining algorithm never changed for ASIC, which was finalised almost since the beginning (a little “change” was to postpone C33 and so on), the changed algorithm is/was for C29 which is for GPU only to avoid ASIC. This ASIC chip can work for C31 and C32, but since the phase-out date of C31 is coming soon (about 2 month later), only C32 will make sense and C32 will have a very long life. So, this ASIC chip will work long time for years, or forever **if** C33/C34/etc not taken by Grin. ---
**Author:** ![gary](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/gary/32/174_2.png) [@gary](https://forum.grin.mw/u/gary)\ **Post date:** [June 1, 2020, 11:11pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/10 "2020-06-01T23:11:22Z")
@tromp Let me ask them and will come back to you soon. ---
**Author:** ![gary](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/gary/32/174_2.png) [@gary](https://forum.grin.mw/u/gary)\ **Post date:** [June 1, 2020, 11:16pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/11 "2020-06-01T23:16:31Z")
Sure, I would keep eyes on this asic miner and update here. ---
**Author:** ![nass](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/nass/32/1993_2.png) [@nass](https://forum.grin.mw/u/nass)\ **Post date:** [June 1, 2020, 11:23pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/12 "2020-06-01T23:23:13Z")
Thank you for the update! Looking forward to hear more about the development! Grinning ---
**Author:** ![danb420](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/danb420/32/1037_2.png) [@danb420](https://forum.grin.mw/u/danb420)\ **Post date:** [June 1, 2020, 11:33pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/13 "2020-06-01T23:33:29Z")
Cancelled almost 1 year ago: [GRN1 Cancellation Announcement](https://forum.grin.mw/t/grn1-cancellation-announcement/5624) ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [June 2, 2020, 6:53am UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/14 "2020-06-02T06:53:07Z")
It would also be nice to know how much SRAM is on the chip, and how much HBM2 DRAM is in those HBM2 stacks on top. ---
**Author:** ![gary](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/gary/32/174_2.png) [@gary](https://forum.grin.mw/u/gary)\ **Post date:** [June 2, 2020, 2:49pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/15 "2020-06-02T14:49:51Z")
> Q: if the ASICs uses lean or mean (or the hybrid slean) mining? A: “Lean” > Q: how much SRAM is on the chip A: “64M” > Q: how much HBM2 DRAM is in those HBM2 stacks on top A: “we made Mask for our own HBM Die, different with HBM2. 1GB”. ---
**Author:** ![tromp](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/tromp/32/22_2.png) [@tromp](https://forum.grin.mw/u/tromp)\ **Post date:** [June 2, 2020, 4:56pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/16 "2020-06-02T16:56:17Z")
Thanks, gary! So they use an 8x tmto (time-memory trade-off). For each trimming round they would need to read the 512MB edge bitmap 8\*2=16 times. That’s a lot of memory bandwidth! ---
**Author:** ![betajuice](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/betajuice/32/966_2.png) [@betajuice](https://forum.grin.mw/u/betajuice)\ **Post date:** [June 3, 2020, 7:14pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/17 "2020-06-03T19:14:57Z")
I don’t understand, they are selling GRN1 miners right now: [https://www.obelisksc1immersion.com/shop/obelisk-grn1/](https://www.obelisksc1immersion.com/shop/obelisk-grn1/) ---
**Author:** ![danb420](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/danb420/32/1037_2.png) [@danb420](https://forum.grin.mw/u/danb420)\ **Post date:** [June 3, 2020, 7:32pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/18 "2020-06-03T19:32:04Z")
No, they are not, **that is a scam website** This is Obelisk’s site, they are not currently selling any miners at this time: [https://obelisk.tech/#mining](https://obelisk.tech/#mining) ---
**Author:** ![betajuice](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/betajuice/32/966_2.png) [@betajuice](https://forum.grin.mw/u/betajuice)\ **Post date:** [June 3, 2020, 7:38pm UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/19 "2020-06-03T19:38:22Z")
oh freaking jesus ok, thanks ---
**Author:** ![Rabinovitch](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/rabinovitch/32/1019_2.png) [@Rabinovitch](https://forum.grin.mw/u/Rabinovitch)\ **Post date:** [June 4, 2020, 4:16am UTC](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383/20 "2020-06-04T04:16:59Z")
Cortex, Ravencoin… [Next page](https://forum.grin.mw/t/came-across-1st-grin-asic-of-the-world/7383.md?page=2)