Please Post All New Or Uncovered BIOS Options Here!

[Adrian Wong]

Hello everyone!

I've been receiving many questions regarding new BIOS options as well as those that have not yet been covered by the BIOS Optimization Guide. So far, I've been answering them one by one.

But this is really quite time consuming. So I suggest that you post under this topic, all the BIOS options that are available in your BIOS but not yet covered in the BIOS Optimization Guide. It would be better if you could also include any additional information on it (as written in the manual).

If possible, please use the following format :-

BIOS Option : i.e. APIC Function
Options : i.e. Enabled, Disabled
Description : i.e. Enables the motherboard's APIC functionality
Motherboard : i.e. ABIT NF7-S
Chipset : i.e. NVIDIA nForce2

Just post all the BIOS options you can find. I'll research on them and post them in future updates of the BIOS Optimization Guide. This method will allow me to concentrate on researching and updating the BIOS Optimization Guide.

Thank you for your help and cooperation, everyone!

[brantgurga]

AMIBIOS Simple Setup Utility 2.00 >
Chipset Features >
Top Performance: Enabled or Disabled

I've searched the Internet for this option before and haven't found it. I think it has to do with memory latency because when it is enabled, the other memory latency options become disabled.

Gigabyte GA7VTXE

[jhigh]

ISA Enable Bit(enable/disable)

I have this option on my Intel D850MV mobo. No explanation in the manual as to what it does.

Thanks!

[ghanz]

BIOS Option : Ram Slew(normal or fast)
Options : Enabled, Disabled(default)
Description :Nil
Motherboard : ECS K7s5a
Chipset : SiS 735

AMIBIOS(ram slew is available on newer official bios & cheepoman bios)

I had also searched the web for info on this, but found little infomation. All I noe at this point is that this setting may help to increase stability at higher fsbs.

[Ice Czar]

Adrian

First Id like to thank you for the guide, I use it personally, and link to it almost daily
(helping the n00bs at [H]ardforums)

Before the BIOS Guide update (which is great ) you had an entry regarding
IDE autodetection
" Reading the individual parameters of the devices used can take up a certain amount of time, therefore, some BIOS have an extra page called HDD autodetection, IDE Autoconfiguration or similar. Using the routine specified in this page, the system searches for the different IDE devices attached to the two channels and reads the parameters. The user is prompted to confirm the correct configuration, after which the data are saved to the CMOS. After running IDE autodetection, the drives recognized will have their fixed entries in the Standard CMOS settings showing a user defined value. As a consequence, at boot-up, the system will no longer have to seek the drive parameters since they are hard-coded in the CMOS and the Power On Self Test will run faster." ECT....

Has this key\option been replaced by the Force ESCD in newer BIOS?
I regularly linked to this entry ( or qouted it and linked to the guide) especially when addressing DMI Hangs and other configuration changes

Im now linking to the ESCD entry, could you clarify the difference (ESCD being the old IDE Auto + ? ) and add an entry regarding the older option?

[phactor]

My Abit VH6T has, under Advanced Chipset Features, these options:

Bank 0/1 DRAM Timing
Bank 2/3 DRAM Timing
Bank 4/5 DRAM Timing

and the possible choices for each are (mine is set to 10ns):
[*] SDRAM 10ns
[ ] SDRAM 8ns
[ ] Normal
[ ] Medium
[ ] Fast
[ ] Turbo

Do you have any descriptions / notions / ideas / explanations for these? If I'm using Crucial SYNCH CL2 chips...

PC133U-222-542-A 256M
PC133U-222-542-C2 128M
PC133U-222-542-C2 128M

...then to what what might I set these options?

Thx!

[peaz]

Originally Posted by phactor

My Abit VH6T has, under Advanced Chipset Features, these options:

Bank 0/1 DRAM Timing
Bank 2/3 DRAM Timing
Bank 4/5 DRAM Timing

and the possible choices for each are (mine is set to 10ns):
[*] SDRAM 10ns
[ ] SDRAM 8ns
[ ] Normal
[ ] Medium
[ ] Fast
[ ] Turbo

Do you have any descriptions / notions / ideas / explanations for these? If I'm using Crucial SYNCH CL2 chips...

PC133U-222-542-A 256M
PC133U-222-542-C2 128M
PC133U-222-542-C2 128M

...then to what what might I set these options?

Thx!

Set them to Turbo... if I'm not mistaken, the Turbo setting actually set's the RAM to run as 2-2-2 latencies... and this is the fastest one. With the crucial cl2 chips, you should be very safe with this setting.

Setting them to 10ns is like going on 1st gear only.... hope this helps.

[ZEX]

BIOS Option : I/O Voltage
Options : 3.2, 3.3(default), 3.4, 3.5, 3.6, 3.7, 3.9, 4.0
Description : I'm not sure what this does, thats why I'm posting it in hope I can find out what it does.
Motherboard : ABIT KT7-RAID
Chipset : VIA KT133

[[TN] Nathan]

Got a couple of new ones that are included on a Soyo P4X400 Dragon here @ Tweaknews.net.

DBI OUTPUT FOR AGP TRANS
VLINK 8X SUPPORT

Any help will be appreciated.

[KerryrreK]

Delay Prior to Thermal

This is under the memory management of an Abit IT7 Max Intel 845E chipset, and lets you select how many minutes, defaults to 16 minutes.

Kerry