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How do I update my BIOS?
  1. You can identify your Global Circuit Technology (GCT) motherboard using the BIOS ID which is displayed on most computers at bootup. Per BIOS vendor (AMI, Award, Phoenix, ...) we have a seperate tab of motherboard BIOS Identifications.
  2. In the Website Links section we provide official and unofficial links to find free Global Circuit Technology (GCT) BIOS upgrades

Click on the More info arrow for more info about the Global Circuit Technology (GCT) bios update.

Global Circuit Technology (GCT) BIOS Updates

Manufacturer - Model Chipset BIOS ID Full BIOS ID More info
Global Circuit Technology (GCT) Cyrix GXm Cx5520 2A433G9A More info BIOS
Global Circuit Technology (GCT) Intel 430TX 2A59IG9B More info BIOS
Global Circuit Technology (GCT) SiS 5571 2A5IHG99 08/01/97- SiS 5571-2A5IHG99C-00. More info BIOS
Global Circuit Technology (GCT) VIA 694X/694T 6A6LJG9B 6A6LJG9BC-00 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9B More info BIOS
Global Circuit Technology (GCT) Intel 430VX 2A59GG99 More info BIOS
Global Circuit Technology (GCT) Intel 440FX 2A69HG99 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9E More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9H More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG99 6A69RG99C-00 More info BIOS
Global Circuit Technology (GCT) VIA KT266/KM266/KT333 6A6LVG99 6A6LVG99C-00 More info BIOS
Global Circuit Technology (GCT) ALi Aladdin 7 M1561 6A5KPG99 More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG9C 6A69RG9CC-00 More info BIOS
Global Circuit Technology (GCT) VIA PRO266 (8633+8233) 6A6LUG99 6A6LUG99C-00 More info BIOS
Global Circuit Technology (GCT) Intel 430TX 2A59IG9A More info BIOS
Global Circuit Technology (GCT) Intel Whitney 810 6A69MG99 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9A More info BIOS
Global Circuit Technology (GCT) Intel 430VX 2A59GG98 More info BIOS
Global Circuit Technology (GCT) Intel 440BX/GX/ZX 2A69KG99 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9D More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9G More info BIOS
Global Circuit Technology (GCT) Intel 440FX 2A69HG9B More info BIOS
Global Circuit Technology (GCT) ALi 1541+1535 6A5KNG99 6A5KNG99C-00 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9K More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG9B 6A69RG9BC-00 More info BIOS
Global Circuit Technology (GCT) VIA P4X266 6A6LWG99 6A6LWG99C-00 More info BIOS
Global Circuit Technology (GCT) Cyrix GXi Cx5520 2A432G99 More info BIOS
Global Circuit Technology (GCT) Intel 430TX 2A59IG99 2A59IG99C-00 More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG9E 6A69RG9EC-00 More info BIOS
Global Circuit Technology (GCT) SiS 5582/5597/5598 2A5IIG99 More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G99 More info BIOS
Global Circuit Technology (GCT) Intel 430TX 2A59IG9C More info BIOS
Global Circuit Technology (GCT) Intel 430VX 2A59GG9A More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9C More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9F More info BIOS
Global Circuit Technology (GCT) Intel 440FX 2A69HG9A More info BIOS
Global Circuit Technology (GCT) Cyrix GXm Cx5530 2A434G9I More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG9A 6A69RG9AC-00 More info BIOS
Global Circuit Technology (GCT) VIA KX133 (8371+686) 6A6LKG99 6A6LKG99C-00 More info BIOS
Global Circuit Technology (GCT) ALi Aladdin V+ 6A5KMG99 More info BIOS
Global Circuit Technology (GCT) Cyrix MediaGX Cx5510 2A431G9A More info BIOS
Global Circuit Technology (GCT) Intel 815 Solano 6A69RG9D 6A69RG9DC-00 More info BIOS
Global Circuit Technology (GCT) E VIA Apollo Pro Plus (692/ 2A6LGG92 12/13/2000-693-686A-2A6LGG9BC-00 More info BIOS
Global Circuit Technology (GCT) E VIA Apollo Pro Plus (692/ 2A6LGG9B 12/13/2000-693-686A-2A6LGG9BC-00 More info BIOS
Global Circuit Technology (GCT) MGXm Cyrix GXm Cx5520 2A433G99 04/02/19998-GXM-Cx5520-2A433G99C-00 More info BIOS
Global Circuit Technology (GCT) ST-693AVA VIA Apollo Pro Plus (692/ 2A6LGG92 12/13/2000-693-686A-2A6LGG9BC-00 More info BIOS
Global Circuit Technology (GCT) ST-693AVA VIA Apollo Pro Plus (692/ 2A6LGG9B 12/13/2000-693-686A-2A6LGG9BC-00 More info BIOS
Global Circuit Technology (GCT) ST-MGX Cyrix MediaGX Cx5510 2A431G99 09/23/1998-GX86-CX5510-2A431G99C-00 More info BIOS
Global Circuit Technology (GCT) ST-P3VFA VIA Apollo Pro Plus (692/ 2A6LGG99 02/22/2000-693-596-W977-2A6LGG99C-00 More info BIOS
Global Circuit Technology (GCT) TK-694XVAE-1 VIA 694X/694T 6A6LJG99 02/15/2001-694X-686B-6A6LJG99C More info BIOS

The below BIOSes are patched / modded to fix the 32GB or 64GB bug that is present in older Award BIOS Based BIOSes.

The 32GB bug in Award BIOS prevents many users from using HDD larger than 32GB as the BIOS hangs at detection. The 64GB bug manifests itself as a hang at the configuration table.

Click on the Download arrow to download the requested Global Circuit Technology (GCT) bios update.

Global Circuit Technology (GCT) Large HDD Support BIOS Updates

Manufacturer - Model BIOS ID OEM ID Max HDD size
Global Circuit Technology (GCT) GCT-6IV 08/08/97-i430VX-SMC665-2A59GG99C-00 GLOBAL CIRCUIT TECHNOLOGY INC. <GCT-6IV> 128GB BETA 128 GB Download BIOS
Global Circuit Technology (GCT) STB1030N (Websurfer) 11/04/1999-GXm-Cx5530-2A434H09C-00 WebSurfer Bios V0.9+floppy support 1999/02/23+64G HDD fix 64 GB Download BIOS

Award BIOS IDs are used to identify motherboards with an Award BIOS. For more information visit our Award BIOS ID information page.

At this moment we have 2 Award BIOS IDs listed for Global Circuit Technology (GCT). Contact us if you have new IDs missing from the list :-)

Global Circuit Technology (GCT) Award BIOS Identification

Award BIOS ID Motherboard manufacturer, model, PCB revision
09/23/1998-Gx86-Cx5510-2A431G99C-00 Global Circuit Technology (GCT) MGX 5510
06/29/1998-GXm-Cx5520-2A433G99C-00 Global Circuit Technology (GCT) MGXi 5520

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