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VIA 6421A OP ROM

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First post, by demiurge

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So I want to know if there is a difference between the VIA 6421 rROMs that have a SATA sticker on them and those that have a RAID sticker on them. Are there two different OP ROMs? I want to use these as a boot device but not as a RAID on a retro rig. How about the ones with no stickers?

Can I flash the ROM to a JBOD?

Reply 1 of 8, by marxveix

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Here is some information about VIA 6421A, i have updated my bios to memphis alternate bios, but still for me it is not best for Win9x, so it waits in the box at the moment.

http://toastytech.com/files/w95stuff.html

Best ATi Rage3 drivers for 3DCIF / Direct3D / OpenGL / DVD : ATi RagePro drivers and software
30+MiniGL / OpenGL Win 9x dll files for all ATi Rage3 cards : Re: ATi RagePro OpenGL files

Reply 2 of 8, by demiurge

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marxveix wrote on 2024-03-24, 23:14:

Here is some information about VIA 6421A, i have updated my bios to memphis alternate bios, but still for me it is not best for Win9x, so it waits in the box at the moment.

http://toastytech.com/files/w95stuff.html

What one is better? The only one I know that might be better is the Promise one.

Reply 3 of 8, by kingcake

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You can flash Silicon Image based SATA controllers to work in IDE compatibility mode instead of AHCI RAID. Search this forum. Lots of threads about it.

Reply 4 of 8, by astonsmith

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I have one of those cards with a hologram SATA sticker on it. Interestingly the ROM chip on mine is a fake, so it can't boot a PC.

Reply 5 of 8, by marxveix

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demiurge wrote on 2024-03-25, 01:24:
marxveix wrote on 2024-03-24, 23:14:

Here is some information about VIA 6421A, i have updated my bios to memphis alternate bios, but still for me it is not best for Win9x, so it waits in the box at the moment.

http://toastytech.com/files/w95stuff.html

What one is better? The only one I know that might be better is the Promise one.

Promise should be faster yes, i do not have one, but i did not get dma working with 6421A@Win9x, i probably wanted sata to work fast, i give 6421A second try if it gets 90mb/s with Win9x. Promise S150 TX2 - Re: Promise TX4 Sata II PCI Card Windows 95/98/ME Driver.

Best ATi Rage3 drivers for 3DCIF / Direct3D / OpenGL / DVD : ATi RagePro drivers and software
30+MiniGL / OpenGL Win 9x dll files for all ATi Rage3 cards : Re: ATi RagePro OpenGL files

Reply 6 of 8, by demiurge

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kingcake wrote on 2024-03-25, 02:13:

You can flash Silicon Image based SATA controllers to work in IDE compatibility mode instead of AHCI RAID. Search this forum. Lots of threads about it.

Yeah I tried that and couldn't get it to work at all.

astonsmith wrote on 2024-03-25, 13:15:

I have one of those cards with a hologram SATA sticker on it. Interestingly the ROM chip on mine is a fake, so it can't boot a PC.

Oh no, I was going to buy one with a hologram on it and want to flash the ROM. Is yours a green PCB or red like this one?

Reply 7 of 8, by astonsmith

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demiurge wrote on 2024-03-25, 21:43:

Oh no, I was going to buy one with a hologram on it and want to flash the ROM. Is yours a green PCB or red like this one?

Mine's got a green PCB, but the board layout is almost identical to the bottom brownish card in those pics (down to capacitor placement etc). I think I was just unlucky.

Reply 8 of 8, by JjozefF

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Hello, I bought one of this card from aliexpress, on card is BIOS chip. I cannot boot from disk connected to this card and I cannot create hardware RAID. Is it possible with some BIOS update or not? I can creat only softvare RAID with use VIA tool in Windows. On card is some jumpers but I dont know how it is work, I dont have any manual or datasheet.

I have motherboard Gigabyte GA-E6010N and I want use it as NAS, but this motherboard have only 2 SATA port, only option is use PCI sata card. System disk and unnecessary data disk is connected on motherboard and I want RAID 1 on this card with 2 SATA HDD with backup. Is possible create hardware RAID?

Thank you.