Buy the ARP T-Shirt! BIOS Optimization Guide Money Savers!
 

   
Desktop Graphics Card Comparison Guide Rev. 33.0
Covering 628 desktop graphics cards, this comprehensive comparison allows you ... Read here
BIOS Option Of The Week - Virtualization Technology
Since 1999, we have been developing the BIOS Optimization Guide, affectionately known... Read here
   
   
Buy The BOG Book Subscribe To The BOG! Latest Money Savers!

Maximum Payload Size

Common Options : 128, 256, 512, 1024, 2048, 4096

Quick Review

This BIOS feature determines the maximum TLP (Transaction Layer Packet) payload size that can be supported by the motherboard chipset's PCI Express controller. The TLP payload size determines the amount of data transmitted within each data packet.

When set to 128, the motherboard chipset's PCI Express controller will only support a maximum data payload of 128 bytes within each TLP.

When set to 256, the motherboard chipset's PCI Express controller will only support a maximum data payload of 256 bytes within each TLP.

When set to 512, the motherboard chipset's PCI Express controller will only support a maximum data payload of 512 bytes within each TLP.

When set to 1024, the motherboard chipset's PCI Express controller will only support a maximum data payload of 1024 bytes within each TLP.

When set to 2048, the motherboard chipset's PCI Express controller will only support a maximum data payload of 2048 bytes within each TLP.

When set to 4096, the motherboard chipset's PCI Express controller supports the maximum data payload of 4096 bytes within each TLP. This is the maximum payload size currently supported by the PCI Express protocol.

It is recommended that you set this BIOS feature to 4096, as this allows all PCI Express devices connected to send up to 4096 bytes of data in each TLP. This gives you maximum efficiency per transfer.

However, this is subject to the PCI device connected to it. If that device only supports a maximum TLP payload size of 512 bytes, the motherboard chipset will communicate with it with a maximum TLP payload size of 512 bytes, even if you set this BIOS feature to 4096.

On the other hand, if you set this BIOS feature to a low value like 256, it will force all connected devices to use a maximum payload size of 256 bytes, even if they support a much larger TLP payload size.

 

Support Tech ARP!

If you like our work, you can help support out work by visiting our sponsors, participate in the Tech ARP Forums, or even donate to our fund. Any help you can render is greatly appreciated!


If you like to know more about this and other BIOS settings, why not subscribe to the full BIOS Optimization Guide?
Click here to find out how you can do that now!


Links: Discuss BIOS options here in our forums | Back to the list of BIOS options

 
 


Copyright © Tech ARP.com. All rights reserved.