# Chia Pos Plotting Error?

**URL:** <https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121>\
**Category:** Support\
**Created:** [November 5, 2023, 4:27pm UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121 "2023-11-05T16:27:44Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![diszell2008](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/diszell2008/32/1493_2.png) [@diszell2008](https://forum.autonomys.xyz/u/diszell2008)\
**Post date:** [November 5, 2023, 4:27pm UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121/1 "2023-11-05T16:27:44Z")

</div>

## Issue Report

### Environment

- **Operating System:**
- **Pulsar/Advanced CLI/Docker:**  
Ubuntu 23.04  
Docker gemini-3g-2023-oct-31

### Problem

```auto
subspace-farmer-all2 | 2023-11-05T14:59:24.706955Z INFO single_disk_farm{disk_farm_index=1}: subspace_farmer::single_disk_farm::plotting: Plotting sector (54.64% complete) sector_index=153
subspace-farmer-all2 | 2023-11-05T14:59:39.570109Z INFO single_disk_farm{disk_farm_index=0}: subspace_farmer::single_disk_farm::plotting: Plotting sector (54.29% complete) sector_index=152
subspace-farmer-all2 | 2023-11-05T15:11:55.301771Z INFO single_disk_farm{disk_farm_index=1}: subspace_farmer::single_disk_farm::plotting: Plotting sector (55.00% complete) sector_index=154
subspace-farmer-all2 | 2023-11-05T15:12:18.779485Z INFO single_disk_farm{disk_farm_index=0}: subspace_farmer::single_disk_farm::plotting: Plotting sector (54.64% complete) sector_index=153
subspace-farmer-all2 | thread 'plotting-0.21' panicked at crates/subspace-proof-of-space/src/chiapos/table.rs:305:49:
subspace-farmer-all2 | index out of bounds: the len is 15113 but the index is 60523
subspace-farmer-all2 | note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
subspace-farmer-all2 | thread 'plotting-0.21' panicked at crates/subspace-proof-of-space/src/chiapos/table.rs:305:49:
subspace-farmer-all2 | index out of bounds: the len is 15113 but the index is 18446744073709535971
subspace-farmer-all2 | Error: Background task plotting-0 panicked

```

 ![Screenshot 2023-11-05 at 22.25.33](https://canada1.discourse-cdn.com/flex011/uploads/subspace/original/2X/d/d31fb062b4cc3a8f894fdb301ee5ecd93f350ade.png)

---

<div class="post-metadata">

**Author:** ![nazar-pc](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/nazar-pc/32/6_2.png) [@nazar-pc](https://forum.autonomys.xyz/u/nazar-pc)\
**Post date:** [November 5, 2023, 4:36pm UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121/2 "2023-11-05T16:36:12Z")

</div>

Most likely you have memory issues: defective modules, unstable XML, etc.  
That error can’t happen on stable computer.

I have seen it myself and had to increase DDR4 voltage to fix ASUS-optimized XMP profile.

Turns out Subspace is a good memory stability test, memtest64 wasn’t able to find issues for me, while Subspace did.

---

<div class="post-metadata">

**Author:** ![diszell2008](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/diszell2008/32/1493_2.png) [@diszell2008](https://forum.autonomys.xyz/u/diszell2008)\
**Post date:** [November 5, 2023, 4:41pm UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121/3 "2023-11-05T16:41:48Z")

</div>

I Use Intel 13700k  
And DRAM RAM Corsair Dominator Platinum 64GB (2x32GB) RGB 5600 DDR5 (CMT64GX5M2B5600C40)  
With XMP enabled

```auto
Handle 0x000E, DMI type 17, 92 bytes
Memory Device
	Array Handle: 0x000C
	Error Information Handle: Not Provided
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 32 GB
	Form Factor: DIMM
	Set: None
	Locator: Controller0-DIMM1
	Bank Locator: BANK 0
	Type: DDR5
	Type Detail: Synchronous
	Speed: 5600 MT/s
	Manufacturer: Corsair
	Serial Number: 00000000
	Asset Tag: 9876543210
	Part Number: CMT64GX5M2B5600C40
	Rank: 2
	Configured Memory Speed: 5600 MT/s
	Minimum Voltage: 1.1 V
	Maximum Voltage: 1.25 V
	Configured Voltage: 1.1 V
	Memory Technology: DRAM
	Memory Operating Mode Capability: Volatile memory
	Firmware Version: Not Specified
	Module Manufacturer ID: Bank 3, Hex 0x9E
	Module Product ID: Unknown
	Memory Subsystem Controller Manufacturer ID: Unknown
	Memory Subsystem Controller Product ID: Unknown
	Non-Volatile Size: None
	Volatile Size: 32 GB
	Cache Size: None
	Logical Size: None

```

---

<div class="post-metadata">

**Author:** ![nazar-pc](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/nazar-pc/32/6_2.png) [@nazar-pc](https://forum.autonomys.xyz/u/nazar-pc)\
**Post date:** [November 5, 2023, 5:40pm UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121/4 "2023-11-05T17:40:32Z")

</div>

Then your XMP is unstable.

If you’re using ASUS board make sure to use XMP II (one that is flashed in the memory module) rather than XMP I (where ASUS tweaks some parameters and can cause instability).

Otherwise consider bumping a voltage a bit (do your research about how much is actually safe) or dial down XMP.

Either way this is not a bug in Subspace implementation, but rather a hardware issue.

---

<div class="post-metadata">

**Author:** ![diszell2008](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/diszell2008/32/1493_2.png) [@diszell2008](https://forum.autonomys.xyz/u/diszell2008)\
**Post date:** [November 6, 2023, 5:18am UTC](https://forum.autonomys.xyz/t/chia-pos-plotting-error/2121/5 "2023-11-06T05:18:55Z")

</div>

I think so, too. because orther pc not error