diff --git a/svm/src/account_loader.rs b/svm/src/account_loader.rs
index ab1c90ae820566..21e1b643caf05e 100644
--- a/svm/src/account_loader.rs
+++ b/svm/src/account_loader.rs
@@ -790,7 +790,12 @@ mod tests {
 
     impl<'a> From<&'a TestCallbacks> for AccountLoader<'a, TestCallbacks> {
         fn from(callbacks: &'a TestCallbacks) -> AccountLoader<'a, TestCallbacks> {
-            AccountLoader::new(callbacks, None, ProgramCacheForTxBatch::default())
+            AccountLoader::new_with_account_cache_capacity(
+                callbacks,
+                None,
+                ProgramCacheForTxBatch::default(),
+                0,
+            )
         }
     }
 
@@ -1120,10 +1125,11 @@ mod tests {
             accounts_map,
             ..Default::default()
         };
-        let mut account_loader = AccountLoader::new(
+        let mut account_loader = AccountLoader::new_with_account_cache_capacity(
             &callbacks,
             account_overrides,
             ProgramCacheForTxBatch::default(),
+            0,
         );
         load_transaction(
             &mut account_loader,
@@ -1506,52 +1512,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn test_load_transaction_accounts_program_account_not_found_but_loaded() {
-        let key1 = Keypair::new();
-        let key2 = Keypair::new();
-
-        let message = Message {
-            account_keys: vec![key1.pubkey(), key2.pubkey()],
-            header: MessageHeader::default(),
-            instructions: vec![CompiledInstruction {
-                program_id_index: 1,
-                accounts: vec![0],
-                data: vec![],
-            }],
-            recent_blockhash: Hash::default(),
-        };
-
-        let sanitized_message = new_unchecked_sanitized_message(message);
-        let mut mock_bank = TestCallbacks::default();
-        let mut account_data = AccountSharedData::default();
-        account_data.set_lamports(200);
-        mock_bank.accounts_map.insert(key1.pubkey(), account_data);
-
-        let mut error_metrics = TransactionErrorMetrics::default();
-        let mut loaded_programs = ProgramCacheForTxBatch::default();
-        loaded_programs.replenish(key2.pubkey(), Arc::new(ProgramCacheEntry::default()));
-
-        let mut account_loader = AccountLoader::new(&mock_bank, None, loaded_programs);
-
-        let sanitized_transaction = SanitizedTransaction::new_for_tests(
-            sanitized_message,
-            vec![Signature::new_unique()],
-            false,
-        );
-        let result = load_transaction_accounts(
-            &mut account_loader,
-            sanitized_transaction.message(),
-            LoadedTransactionAccount::default(),
-            &ComputeBudgetLimits::default(),
-            &mut error_metrics,
-            &FeatureSet::default(),
-            &RentCollector::default(),
-        );
-
-        assert_eq!(result.err(), Some(TransactionError::ProgramAccountNotFound));
-    }
-
     // currently, the account loader retrieves read-only non-instruction accounts from the program cache
     // it creates a mock AccountSharedData with the executable flag set to true
     // however, it does not check whether these accounts are actually executable before doing so
diff --git a/svm/src/transaction_processor.rs b/svm/src/transaction_processor.rs
index 0febe7e714669a..81a2ac4dc58d25 100644
--- a/svm/src/transaction_processor.rs
+++ b/svm/src/transaction_processor.rs
@@ -1219,7 +1219,12 @@ mod tests {
 
     impl<'a> From<&'a MockBankCallback> for AccountLoader<'a, MockBankCallback> {
         fn from(callbacks: &'a MockBankCallback) -> AccountLoader<'a, MockBankCallback> {
-            AccountLoader::new(callbacks, None, ProgramCacheForTxBatch::default())
+            AccountLoader::new_with_account_cache_capacity(
+                callbacks,
+                None,
+                ProgramCacheForTxBatch::default(),
+                0,
+            )
         }
     }
 
@@ -2489,66 +2494,6 @@ mod tests {
         }
     }
 
-    #[test]
-    fn test_validate_account_override_usage_on_validate_fee() {
-        /*
-            The test setups an account override with enough lamport to pass validate fee.
-            The account_db has the account with minimum rent amount thus would fail the validate_free.
-            The test verify that the override is used with a passing test of validate fee.
-        */
-        let lamports_per_signature = 5000;
-
-        let message =
-            new_unchecked_sanitized_message(Message::new(&[], Some(&Pubkey::new_unique())));
-
-        let fee_payer_address = message.fee_payer();
-        let transaction_fee = lamports_per_signature;
-        let rent_collector = RentCollector::default();
-        let min_balance = rent_collector.rent.minimum_balance(0);
-
-        let fee_payer_account = AccountSharedData::new(min_balance, 0, &Pubkey::default());
-        let mut mock_accounts = HashMap::new();
-        mock_accounts.insert(*fee_payer_address, fee_payer_account.clone());
-
-        let necessary_balance = min_balance + transaction_fee;
-        let mut account_overrides = AccountOverrides::default();
-        let fee_payer_account_override =
-            AccountSharedData::new(necessary_balance, 0, &Pubkey::default());
-        account_overrides.set_account(fee_payer_address, Some(fee_payer_account_override));
-
-        let mock_bank = MockBankCallback {
-            account_shared_data: Arc::new(RwLock::new(mock_accounts)),
-            ..Default::default()
-        };
-        let mut account_loader = AccountLoader::new(
-            &mock_bank,
-            Some(&account_overrides),
-            ProgramCacheForTxBatch::default(),
-        );
-
-        let mut error_counters = TransactionErrorMetrics::default();
-
-        let result =
-            TransactionBatchProcessor::<TestForkGraph>::validate_transaction_nonce_and_fee_payer(
-                &mut account_loader,
-                &message,
-                CheckedTransactionDetails {
-                    nonce: None,
-                    lamports_per_signature,
-                },
-                &Hash::default(),
-                &FeatureSet::default(),
-                &FeeStructure::default(),
-                &rent_collector,
-                &mut error_counters,
-            );
-        assert!(
-            result.is_ok(),
-            "test_account_override_used: {:?}",
-            result.err()
-        );
-    }
-
     // Ensure `TransactionProcessingCallback::inspect_account()` is called when
     // validating the fee payer, since that's when the fee payer account is loaded.
     #[test]