Minecraft Forums

When I load both Railcraft and Traincraft (for 1.6.4) mods together, my game freezes up with a "minecraft out of memory" error. I'm already running Java 64 bit and have 3 gigs allocated for RAM. Does anyone know what the trouble is and how to fix it?

Here it is, in all its glory. I'm sorry - I'm a newbie on the forum and I don't know if this is what you meant by "in a spoiler". oh btw, in case you couldn't tell, I'm also no expert on computers. Mostly I just like to play Minecraft. So I'm also sorry if this is a really stupid question but I appreciate any help anyone can give.



---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 11/15/14 10:33 PM
Description: Exception in server tick loop

java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.createEntry(Unknown Source)
at java.util.HashMap.addEntry(Unknown Source)
at java.util.HashMap.put(Unknown Source)
at net.minecraft.nbt.NBTTagCompound.func_74768_a(SourceFile:65)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75820_a(AnvilChunkLoader.java:346)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75816_a(AnvilChunkLoader.java:127)
at net.minecraft.world.gen.ChunkProviderServer.func_73242_b(ChunkProviderServer.java:232)
at net.minecraft.world.gen.ChunkProviderServer.func_73151_a(ChunkProviderServer.java:284)
at net.minecraft.world.WorldServer.func_73044_a(WorldServer.java:899)
at net.minecraft.server.MinecraftServer.func_71267_a(MinecraftServer.java:360)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:124)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.7.0_65, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 34632 bytes (0 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 2096 (117376 bytes; 0 MB) allocated, 1720 (96320 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 1, tcache: 17, allocated: 0, tallocated: 0
FML: MCP v8.11 FML v6.4.45.953 Minecraft Forge 9.11.1.953 41 mods loaded, 41 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.4.45.953} [Forge Mod Loader] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.11.1.953} [Minecraft Forge] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.9.0.6} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.6.1.5} [Not Enough Items] (NotEnoughItems 1.6.1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OpenModsCore{@[email protected]} [OpenModsCore] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
arsmagica2{1.1.2b} [Ars Magica 2] (AM2_1.1.2b.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
betterstorage{0.7.3.38} [BetterStorage] (Better-Storage-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiblioCraft{1.5.5} [BiblioCraft] (BiblioCraft-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{1.2.1} [Biomes O' Plenty] (BiomesOPlenty-universal-1.6.4-1.2.1.434.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{4.2.2} [BuildCraft] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{4.2.2} [BC Builders] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{4.2.2} [BC Energy] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{4.2.2} [BC Factory] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{4.2.2} [BC Transport] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{4.2.2} [BC Silicon] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Chisel{1.4.9} [Chisel] (Chisel Mod.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
props{1.4} [DecoCraft] (DecoCraftV[1.6.4]1.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FlansMod{4.1.1} [Flans Mod] (FlansMod-4.1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FoodPlus{2.8PRE4} [§bFood Plus] (foodplus-1.6.4-2.8PRE4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MapWriter{2.0} [MapWriter] (mapwriter-1.6.4-2.0.17.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Morph{0.7.2} [Morph] (Morph-Beta-0.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OpenMods{0.5.1} [OpenMods] (OpenModsLib-0.5.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OpenBlocks{1.2.9} [OpenBlocks] (OpenBlocks-1.2.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OreSpawn{164.20} [OreSpawn] (orespawn164v20.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMultipart{1.0.0.244} [Forge Multipart] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Core{4.3.5.30} [ProjectRed] (ProjectRedBase-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Transportation{4.3.5.30} [ProjectRed-Transportation] (ProjectRedMechanical-BETA-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Exploration{4.3.5.30} [ProjectRed-Exploration] (ProjectRedWorld-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct{1.6.X_1.5.5.7} [Tinkers' Construct] (TConstruct_mc1.6.4_1.5.5.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Compatibility{4.3.5.30} [ProjectRed-Compatibility] (ProjectRedCompat-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Integration{4.3.5.30} [ProjectRed-Integration] (ProjectRedIntegration-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Transmission{4.3.5.30} [ProjectRed-Transmission] (ProjectRedIntegration-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Illumination{4.3.5.30} [ProjectRed-Illumination] (ProjectRedLighting-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ProjRed|Expansion{4.3.5.30} [ProjectRed-Expansion] (ProjectRedMechanical-BETA-1.6.4-4.3.5.30.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
telepads{1.6.4 v5} [Teleportation Pads] (TelePads 1.6.4 v5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TC{4.2.1_012} [Traincraft] (traincraft-4.2.1_011.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TwilightForest{1.20.0} [The Twilight Forest] (TwilightForestMod1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
McMultipart{1.0.0.244} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMicroblock{1.0.0.244} [Forge Microblocks] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct Environment: Sane and ready for action. Bugs may be reported.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['dragonlady160'/165, l='Trains!', x=-16.00, y=63.50, z=-238.00]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

My husband said I have 3GB on the Technic launcher but maybe not on the regular minecraft launcher, which is what these mods are on. Do you know how to increase the RAM vanilla Minecraft has to use?

Thanks, I'll look at the launcher settings. Appreciate your help.