# 24h and nothing contributed? gpu? **URL:** \ **Category:** Mining Support\ **Created:** [October 30, 2016, 11:49pm UTC](https://forum.zcashcommunity.com/t/24h-and-nothing-contributed-gpu/5720 "2016-10-30T23:49:45Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![pov](https://avatars.discourse-cdn.com/v4/letter/p/eb8c5e/32.png) [@pov](https://forum.zcashcommunity.com/u/pov)\ **Post date:** [October 30, 2016, 11:49pm UTC](https://forum.zcashcommunity.com/t/24h-and-nothing-contributed-gpu/5720/1 "2016-10-30T23:49:45Z")
Hi, I started zcashd in a Xeon v3 computer with a silent AMD r5 230 graphics card. There’s no info on whether zcashd is using the gpu or not. In either case, after 24 hours, There’s still nothing earned: ``` Since starting this node 1 days, 0 hours, 48 minutes, 41 seconds ago: - You have validated 76 transactions! - You have contributed 0.0000 Sol/s on average to the network solution rate. - You have completed 0 Equihash solver runs. ``` So, how can I know if zcashd is using the GPU (although it’s a weak GPU, I know that)? And is it normal that for I haven’t mined anything yet even if only using the CPU? ---
**Author:** ![zclash](https://avatars.discourse-cdn.com/v4/letter/z/f475e1/32.png) [@zclash](https://forum.zcashcommunity.com/u/zclash)\ **Post date:** [October 31, 2016, 12:33am UTC](https://forum.zcashcommunity.com/t/24h-and-nothing-contributed-gpu/5720/2 "2016-10-31T00:33:30Z")
It doesn’t look like you are mining at all. You should see the number of Equihash solver runs increasing over time. Did you enable the mining flag in your zcash.conf file? ---
**Author:** ![pov](https://avatars.discourse-cdn.com/v4/letter/p/eb8c5e/32.png) [@pov](https://forum.zcashcommunity.com/u/pov)\ **Post date:** [October 31, 2016, 10:10am UTC](https://forum.zcashcommunity.com/t/24h-and-nothing-contributed-gpu/5720/3 "2016-10-31T10:10:55Z")
Is it enough to pass the **-gen** flag? How do I know if it’s using the GPU?