diff --git a/models/pllava/configuration_pllava.py b/models/pllava/configuration_pllava.py
index 6c429ce..53b58ab 100644
--- a/models/pllava/configuration_pllava.py
+++ b/models/pllava/configuration_pllava.py
@@ -16,6 +16,7 @@
 from transformers.configuration_utils import PretrainedConfig
 from transformers.utils import logging
 from transformers.models.auto import CONFIG_MAPPING
+from utils.basic_utils import is_gpu_ampere_or_later
 
 
 logger = logging.get_logger(__name__)
@@ -141,6 +142,8 @@ def __init__(
         elif text_config is None:
             tmp_config = {"_attn_implementation":"flash_attention_2",
                           "gradient_checkpointing": self.gradient_checkpointing}
+            if not is_gpu_ampere_or_later():
+                del tmp_config['_attn_implementation']
             self.text_config = CONFIG_MAPPING["llama"](**tmp_config)
             self.text_config.gradient_checkpointing = self.gradient_checkpointing
         # self.text_config["_attn_implementation"]="flash_attention_2"  # xl: temporal hard code
diff --git a/models/pllava/modeling_pllava.py b/models/pllava/modeling_pllava.py
index 04d64cf..da01f01 100644
--- a/models/pllava/modeling_pllava.py
+++ b/models/pllava/modeling_pllava.py
@@ -36,6 +36,8 @@
 
 from .configuration_pllava import PllavaConfig
 import pickle
+from utils.basic_utils import is_gpu_ampere_or_later
+
 
 logger = logging.get_logger(__name__)
 
@@ -175,7 +177,7 @@ class PllavaPreTrainedModel(PreTrainedModel):
     supports_gradient_checkpointing = True
     _no_split_modules = ["LlavaVisionAttention"]
     _skip_keys_device_placement = "past_key_values"
-    _supports_flash_attn_2 = True
+    _supports_flash_attn_2 = is_gpu_ampere_or_later()
 
     def _init_weights(self, module):
         # important: this ported version of Llava isn't meant for training from scratch - only
@@ -291,7 +293,10 @@ def __init__(self, config: PllavaConfig):
         self.vision_tower = AutoModel.from_config(config.vision_config)
         self.multi_modal_projector = PllavaMultiModalProjector(config)
         self.vocab_size = config.vocab_size
-        self.language_model = AutoModelForCausalLM.from_config(config.text_config, torch_dtype=config.torch_dtype, attn_implementation="flash_attention_2")
+        if is_gpu_ampere_or_later():
+            self.language_model = AutoModelForCausalLM.from_config(config.text_config, torch_dtype=config.torch_dtype, attn_implementation="flash_attention_2")
+        else:
+            self.language_model = AutoModelForCausalLM.from_config(config.text_config, torch_dtype=config.torch_dtype)
         self.pad_token_id = self.config.pad_token_id if self.config.pad_token_id is not None else self.config.text_config.pad_token_id
         assert self.pad_token_id is not None, 'provide the model with pad_token_id, this would be used to arranging new embedings'
         self.post_init()
diff --git a/tasks/eval/demo/pllava_demo.py b/tasks/eval/demo/pllava_demo.py
index 935734b..f3f78b8 100644
--- a/tasks/eval/demo/pllava_demo.py
+++ b/tasks/eval/demo/pllava_demo.py
@@ -13,10 +13,14 @@
 )
 from tasks.eval.demo import pllava_theme
 
-SYSTEM="""You are Pllava, a large vision-language assistant. 
-You are able to understand the video content that the user provides, and assist the user with a variety of tasks using natural language.
-Follow the instructions carefully and explain your answers in detail based on the provided video.
+SYSTEM="""You are a powerful Video Magic ChatBot, a large vision-language assistant. 
+You are able to understand the video content that the user provides and assist the user in a video-language related task.
+The user might provide you with the video and maybe some extra noisy information to help you out or ask you a question. Make use of the information in a proper way to be competent for the job.
+### INSTRUCTIONS:
+1. Follow the user's instruction.
+2. Be critical yet believe in yourself.
 """
+
 INIT_CONVERSATION: Conversation = conv_plain_v1.copy()
 
 
diff --git a/tasks/eval/model_utils.py b/tasks/eval/model_utils.py
index f1a700f..4651801 100644
--- a/tasks/eval/model_utils.py
+++ b/tasks/eval/model_utils.py
@@ -10,6 +10,8 @@
 from accelerate.utils import get_balanced_memory
 
 from transformers import StoppingCriteria
+from utils.basic_utils import is_gpu_ampere_or_later
+
 class KeywordsStoppingCriteria(StoppingCriteria):
     def __init__(self, keywords, tokenizer, input_ids):
         self.keywords = keywords
@@ -45,6 +47,7 @@ def load_pllava(repo_id, num_frames, use_lora=False, weight_dir=None, lora_alpha
         kwargs.update(pooling_shape=(0,12,12)) # produce a bug if ever usen the pooling projector
     config = PllavaConfig.from_pretrained(
         repo_id if not use_lora else weight_dir,
+        use_flash_attention_2=is_gpu_ampere_or_later(),
         pooling_shape=pooling_shape,
         **kwargs,
     )
diff --git a/utils/basic_utils.py b/utils/basic_utils.py
index fb453d3..ba6bb66 100644
--- a/utils/basic_utils.py
+++ b/utils/basic_utils.py
@@ -12,12 +12,17 @@
 
 import torch
 import torch.distributed as dist
+from torch.cuda import get_device_properties
 from .distributed import is_dist_avail_and_initialized
 
 
 logger = logging.getLogger(__name__)
 
 
+def is_gpu_ampere_or_later():
+    return get_device_properties(0).major >= 8
+
+
 class SmoothedValue(object):
     """Track a series of values and provide access to smoothed values over a
     window or the global series average.