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- 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.
- In the Website Links section we provide official and unofficial links to find free Global Circuit Technology (GCT) BIOS upgrades
Click on the 
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) | VIA KX133 (8371+686) | 6A6LKG99 | 6A6LKG99C-00 |
|
| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9I |
|
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG9A | 6A69RG9AC-00 |
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG9D | 6A69RG9DC-00 |
|
| Global Circuit Technology (GCT) | ALi Aladdin V+ | 6A5KMG99 |
|
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| Global Circuit Technology (GCT) | Cyrix MediaGX Cx5510 | 2A431G9A |
|
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| Global Circuit Technology (GCT) | Intel 430TX | 2A59IG9B |
|
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| Global Circuit Technology (GCT) | SiS 5571 | 2A5IHG99 | 08/01/97- SiS 5571-2A5IHG99C-00. |
|
| Global Circuit Technology (GCT) | Cyrix GXm Cx5520 | 2A433G9A |
|
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9B |
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| Global Circuit Technology (GCT) | Intel 430VX | 2A59GG99 |
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| Global Circuit Technology (GCT) | VIA 694X/694T | 6A6LJG9B | 6A6LJG9BC-00 |
|
| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9E |
|
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| Global Circuit Technology (GCT) | Intel 440FX | 2A69HG99 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9H |
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG99 | 6A69RG99C-00 |
|
| Global Circuit Technology (GCT) | VIA KT266/KM266/KT333 | 6A6LVG99 | 6A6LVG99C-00 |
|
| Global Circuit Technology (GCT) | VIA PRO266 (8633+8233) | 6A6LUG99 | 6A6LUG99C-00 |
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| Global Circuit Technology (GCT) | ALi Aladdin 7 M1561 | 6A5KPG99 |
|
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG9C | 6A69RG9CC-00 |
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| Global Circuit Technology (GCT) | Intel Whitney 810 | 6A69MG99 |
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| Global Circuit Technology (GCT) | Intel 430TX | 2A59IG9A |
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| Global Circuit Technology (GCT) | Intel 430VX | 2A59GG98 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9A |
|
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9D |
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| Global Circuit Technology (GCT) | Intel 440BX/GX/ZX | 2A69KG99 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9G |
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| Global Circuit Technology (GCT) | Intel 440FX | 2A69HG9B |
|
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| Global Circuit Technology (GCT) | VIA P4X266 | 6A6LWG99 | 6A6LWG99C-00 |
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| Global Circuit Technology (GCT) | ALi 1541+1535 | 6A5KNG99 | 6A5KNG99C-00 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9K |
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG9B | 6A69RG9BC-00 |
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| Global Circuit Technology (GCT) | Intel 815 Solano | 6A69RG9E | 6A69RG9EC-00 |
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| Global Circuit Technology (GCT) | Cyrix GXi Cx5520 | 2A432G99 |
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| Global Circuit Technology (GCT) | Intel 430TX | 2A59IG99 | 2A59IG99C-00 |
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| Global Circuit Technology (GCT) | Intel 430TX | 2A59IG9C |
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| Global Circuit Technology (GCT) | SiS 5582/5597/5598 | 2A5IIG99 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G99 |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9C |
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| Global Circuit Technology (GCT) | Intel 430VX | 2A59GG9A |
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| Global Circuit Technology (GCT) | Cyrix GXm Cx5530 | 2A434G9F |
|
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| Global Circuit Technology (GCT) | Intel 440FX | 2A69HG9A |
|
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| Global Circuit Technology (GCT) E | VIA Apollo Pro Plus (692/ | 2A6LGG92 | 12/13/2000-693-686A-2A6LGG9BC-00 |
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| Global Circuit Technology (GCT) E | VIA Apollo Pro Plus (692/ | 2A6LGG9B | 12/13/2000-693-686A-2A6LGG9BC-00 |
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| Global Circuit Technology (GCT) MGXm | Cyrix GXm Cx5520 | 2A433G99 | 04/02/19998-GXM-Cx5520-2A433G99C-00 |
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| Global Circuit Technology (GCT) ST-693AVA | VIA Apollo Pro Plus (692/ | 2A6LGG92 | 12/13/2000-693-686A-2A6LGG9BC-00 |
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| Global Circuit Technology (GCT) ST-693AVA | VIA Apollo Pro Plus (692/ | 2A6LGG9B | 12/13/2000-693-686A-2A6LGG9BC-00 |
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| Global Circuit Technology (GCT) ST-MGX | Cyrix MediaGX Cx5510 | 2A431G99 | 09/23/1998-GX86-CX5510-2A431G99C-00 |
|
| Global Circuit Technology (GCT) ST-P3VFA | VIA Apollo Pro Plus (692/ | 2A6LGG99 | 02/22/2000-693-596-W977-2A6LGG99C-00 |
|
| Global Circuit Technology (GCT) TK-694XVAE-1 | VIA 694X/694T | 6A6LJG99 | 02/15/2001-694X-686B-6A6LJG99C |
|
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 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 |
|
| 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 |
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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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About
My name is Wim Bervoets and I'm the founder of Wim's BIOS Page. The history of this site goes back to 1996 when I was taking my first steps on the internet. Gradually the site grew to what it is now - an authority site about BIOS update information - with an active forum.
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