# Building first mining rig and having issues **URL:** \ **Category:** Mining\ **Created:** [August 13, 2021, 10:49pm UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907 "2021-08-13T22:49:12Z")\ **Posts on this page:** 5\ **Page:** 3
**Author:** ![aussiesloth](https://forum.safex.org/user_avatar/forum.safex.org/aussiesloth/32/2080_2.png) [@aussiesloth](https://forum.safex.org/u/aussiesloth)\ **Post date:** [October 20, 2021, 4:04am UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907/41 "2021-10-20T04:04:36Z")
It’s perhaps with only 2 x 4Gb sticks that it can’t allocate enough uninterrupted space to the 1GB pages. Try turning 1Gb to false in config and seeing what you get. The hashrate loss won’t be much. ---
**Author:** ![Stevo](https://forum.safex.org/letter_avatar_proxy/v4/letter/s/f05b48/32.png) [@Stevo](https://forum.safex.org/u/Stevo)\ **Post date:** [December 27, 2021, 11:17pm UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907/42 "2021-12-27T23:17:37Z")
I’d like to ask a question that I don’t quite understand. Why is it not necessary to have extra fans like you ordinarily see when assembled in a case? ---
**Author:** ![aussiesloth](https://forum.safex.org/user_avatar/forum.safex.org/aussiesloth/32/2080_2.png) [@aussiesloth](https://forum.safex.org/u/aussiesloth)\ **Post date:** [December 27, 2021, 11:35pm UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907/43 "2021-12-27T23:35:48Z")
A PC case is basically a hot box without those extra fans. An open mining rig has much better passive heat escape, because it simply rises off the rig. The only real fan you then need is the cpu cooler, to maximise the cooling of the cpu, thus maximising hashing efficiency. _Btw, if you decide to build a rig inside a PC case, you’ll definitely still want those extra fans moving air through the case._ ---
**Author:** ![shazbot](https://forum.safex.org/user_avatar/forum.safex.org/shazbot/32/3743_2.png) [@shazbot](https://forum.safex.org/u/shazbot)\ **Post date:** [January 12, 2022, 10:02pm UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907/45 "2022-01-12T22:02:24Z")
I found this in my searches, it might help ![image](https://forum.safex.org/uploads/default/original/2X/f/fcf8c66ba94da865c01ba1fcb7ef5cc85c4326a9.jpeg) Below 95 degrees F ….optimum 185 degrees F ….max ---
**Author:** ![shazbot](https://forum.safex.org/user_avatar/forum.safex.org/shazbot/32/3743_2.png) [@shazbot](https://forum.safex.org/u/shazbot)\ **Post date:** [January 13, 2022, 2:08am UTC](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907/46 "2022-01-13T02:08:09Z")
Found this from the manufacturer. ![image](https://forum.safex.org/uploads/default/original/2X/9/95dd6ba151d52234dc8a7767dff959d6ce560179.jpeg) 95 C = 203 F [Previous page](https://forum.safex.org/t/building-first-mining-rig-and-having-issues/7907.md?page=2)