diff --git a/src/graph/connect.cc b/src/graph/connect.cc
index 6c681c397..db34f1df6 100644
--- a/src/graph/connect.cc
+++ b/src/graph/connect.cc
@@ -624,9 +624,12 @@ ncclResult_t ncclTopoPostset(struct ncclComm* comm, int* firstRanks, int* treePa
   NCCLCHECK(connectRings(comm, ringRecv, ringSend, ringPrev, ringNext));
   NCCLCHECK(connectTrees(comm, treeToParent, treeToChild0, treeToChild1, treePatterns));
 
+  int maxChannels = 2*CHANNEL_LIMIT;
+
   // Only use full MAXCHANNELS for gfx94x
   int maxChannels = IsArchMatch(comm->topo->nodes[GPU].nodes[0].gpu.gcn, "gfx94") ?
-    ((comm->topo->nodes[GPU].nodes[0].gpu.cu == 80 || comm->topo->nodes[GPU].nodes[0].gpu.cu == 20)
+    ((comm->topo->nodes[GPU].nodes[0].gpu.cu == 80 || comm->topo->nodes[GPU].nodes[0].gpu.cu == 20
+      comm->topo->nodes[GPU].nodes[0].gpu.cu == 96 || comm->topo->nodes[GPU].nodes[0].gpu.cu == 24)
       ? comm->topo->nodes[GPU].nodes[0].gpu.cu : MAXCHANNELS) : 2*CHANNEL_LIMIT;
 
   if (graphs[NCCL_ALGO_RING]->nIntraChannels > 0 || comm->nNodes > 1) {