# Fast catchup for mainnet

**URL:** <https://forum.algorand.co/t/fast-catchup-for-mainnet/3360>\
**Category:** General\
**Tags:** mainnet\
**Created:** [May 23, 2021, 2:08pm UTC](https://forum.algorand.co/t/fast-catchup-for-mainnet/3360 "2021-05-23T14:08:48Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![debl](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@debl](https://forum.algorand.co/u/debl)\
**Post date:** [May 24, 2021, 8:17am UTC](https://forum.algorand.co/t/fast-catchup-for-mainnet/3360/7 "2021-05-24T08:17:56Z")

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Thank you for explanations. Indeed, I have HDD (320 GB), 3GB DDR3 RAM, and Internet is \< 100Mbps 😂

Did monitoring last night, and see that after approx. 4,5 million accounts processed - some reset happens. It all starts from beginning then:

 ![reset](https://us1.discourse-cdn.com/flex016/uploads/algorand/original/2X/9/93d48e98a42b4d0237fac8641e37f91eac5f4d82.png)

So, despite my outdated laptop HW, what is the limiting factor here? And why reset happens? I see it is every ~2 hours, once ~4,5 million accounts been processed.

@fabrice, you said _“…using a hard drive or a slow SSD (like an old SATA one) **will not work** …”_. Why so? What is the technical reason for this?

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