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NVIDIA 7800GS - How to slow down fan in DOS?

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First post, by p6889k

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I have NVIDIA 7800GS AGP card, when the computer powers on the card's fan goes full speed making noise like a vacuum cleaner. Once the PC boots to Windows98 or XP, the fan quiets down if the card's driver is loaded. But if I boot to DOS the fan keeps blowing full speed.

Do you know of any way to control the fan speed at boot or in DOS?

Is there any aftermarket quiet fan for this card?

Reminder, this is the AGP version, not PCIE.

In the meantime I'm using ATI9800 PRO which is very quiet all the time, but would love to get the 7800GS fan under control.

Thank you.

Sinclair ZX Spectrum 48k, 48k+, 128k, +2
Amiga 1200, 68030/40mhz
386DX/33, ET4000, SBPro2, MT32
Dual PPro/200, Millennium II, Voodoo 2, AWE32, SC-55
etc.

Reply 2 of 8, by p6889k

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The Serpent Rider wrote:

BIOS tweaking.

How do i do that?

Sinclair ZX Spectrum 48k, 48k+, 128k, +2
Amiga 1200, 68030/40mhz
386DX/33, ET4000, SBPro2, MT32
Dual PPro/200, Millennium II, Voodoo 2, AWE32, SC-55
etc.

Reply 4 of 8, by Revolter

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Try RayeR's NVClock utility. I've never tried it with anything but the GeForce2 MX, but it's been great for lowering the working frequencies for that card.

Celeron 800, 512MB, GeForce2 MX, ES1938S/DB S2, Windows ME/DOS 6.22

Reply 5 of 8, by p6889k

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The Serpent Rider wrote:

NiBiTor.

Just googled it, wow, had no idea it existed. Thank you.

Sinclair ZX Spectrum 48k, 48k+, 128k, +2
Amiga 1200, 68030/40mhz
386DX/33, ET4000, SBPro2, MT32
Dual PPro/200, Millennium II, Voodoo 2, AWE32, SC-55
etc.

Reply 6 of 8, by p6889k

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Revolter wrote:

Try RayeR's NVClock utility. I've never tried it with anything but the GeForce2 MX, but it's been great for lowering the working frequencies for that card.

Thanks for the suggestion. I'm not trying to underclock it, just change fan speed at boot or in DOS when not under load. Right now it blows 100% fan speed even if there's no load on it.

Sinclair ZX Spectrum 48k, 48k+, 128k, +2
Amiga 1200, 68030/40mhz
386DX/33, ET4000, SBPro2, MT32
Dual PPro/200, Millennium II, Voodoo 2, AWE32, SC-55
etc.

Reply 7 of 8, by Revolter

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p6889k wrote:

I'm not trying to underclock it, just change fan speed at boot or in DOS when not under load

It can control the fan speed as well, but I'd still recommend underclocking it just to make sure the card is fine in DOS with low fan speeds:

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Celeron 800, 512MB, GeForce2 MX, ES1938S/DB S2, Windows ME/DOS 6.22

Reply 8 of 8, by p6889k

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Revolter wrote:

It can control the fan speed as well, but I'd still recommend underclocking it just to make sure the card is fine in DOS with low fan speeds:

Interesting, I'll give it a try, thank you.

Sinclair ZX Spectrum 48k, 48k+, 128k, +2
Amiga 1200, 68030/40mhz
386DX/33, ET4000, SBPro2, MT32
Dual PPro/200, Millennium II, Voodoo 2, AWE32, SC-55
etc.

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