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K6-2 upgrade

Forum Motherboards & Memory : General Motherboard - K6-2 upgrade

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Anonymous   11-25-2000 at 02:12:38 PM

I have a very old socket 7 motherboard that uses the VIA Apollo VPX chipset. I currently running a Pentinum 233mhz and I want to upgrade it to a K6-2 400.
I know my motherboard can support a core voltage as low as 1.8v, I also know that it supports K6 cpu, but there are no BIOS update that make it to support K6-2. The problem is will the K6-2 still work on my motherboard even thought the BISO doesn't support it???

Below is a more detailed info of my motherboard:
Name: Octek Rhino 12+
Chipset: VIA VT82C580VPX
Supported processer type: Pentinum, Pentinum with MMX, Cryix, K5, K6
External CPU clock: 50/55/60/66/75 mhz
CPU voltage: 1.8 - 3.5v
Clock multiplier: 1.5x to 3.5x (up to 4.5x for K6 (supports K6 300mhz) with the newest BIOS)

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Gman   11-25-2000 at 04:44:08 PM
- 0 +

Shouldn't be a problem. No BIOS update should be neccessary. I run a K6-2 475 (@400) on an old DFI motherboard with a 430HX chipset. It had a Pentium 166 on it. I jumpered the multiplier to 2.0 (the k6-2 sees it as 6.0) and jumpered the voltage down to 2.5 (I can't get any lower which is why I choose a K6-2 475 as it is rated at 2.4v instead of the 2.2). I dropped the K6-2 in and everything booted and ran fine. More than twice the speed and 50% disk speed increase (according to Norton SI). I run a Promise ATA/66 drive controller. Don't know why more people don't take advantage of this inexpensive performance solution. (FYI- My voltage regulator runs hot, not the processor, but you should have no problem.)

(I didn't know that an original Pentium was made in a 233 version. Are you sure it is not a Pentium II? Then you would be running a slot 1 and couldn't use a K6.)

<P ID="edit"><FONT SIZE=-1><EM>Edited by Gman on 11/25/00 03:26 PM.</EM></FONT></P>

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Ncogneto   11-26-2000 at 12:59:37 AM
- 0 +

You should'nt have any problems, at worst it just wont work but at least you are in no danger of cooking your cpu because you have the right votage settings. A couple things to bear in mind however: If you are running win95 you will need a patch, it seems 95 has trouble with amd cpu's over 350. If 98 then no problem there. there is a good chance it will work , although you may not get peak performance to do the fact your bios does not know how to use the write back cache setting in your new cpu. You can download a handy utility that can load with windows and give you another 15% or more increase by enabling this feature. It is called cpuidle.

A little bit of knowledge is a dangerous thing!

Reply to Ncogneto
Anonymous   11-26-2000 at 03:19:13 AM
- 0 +

thx guys
however I also wondering will the K6-2+ or even the K6-3+ works on my motherboard?? since it can support a very very low voltage
btw Pentinum 233mhz is the last Pentinum 1 chip Intel made, it's also the fastest Pentinum 1 processer while the Pentinum II 233mhz is the slowest Pentinum II processer.

<P ID="edit"><FONT SIZE=-1><EM>Edited by dennisz on 11/25/00 11:18 PM.</EM></FONT></P>

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Ncogneto   11-26-2000 at 04:56:24 AM
- 0 +

Probably no, its possible but I highly doubt it chances are you will need to find a bios for your board that would support the plus series of chips. I have a 450 k63+ and even alot of the super 7 boards wont work with it. Although, with the ones that do it rocks. If you are looking for a little bit more performance than your k6-2 check into getting a k6-3 350 cpu. these outperform the k6-2 500's, cost about 50-60 bucks ( if you know where) and are easily overclocked to 400 sometimes even 450.

A little bit of knowledge is a dangerous thing!

Reply to Ncogneto
phsstpok   11-26-2000 at 08:29:18 AM
- 0 +

K6-2 475 on an older MoBo. That's a very creative solution. I wish I thought of it. (Of course I didn't know about the 2X-6X conversion at the time I upgraded to an FIC 503+ MoBo).

Reply to phsstpok
Anonymous   07-16-2001 at 05:27:33 PM
- 0 +

Maybe the same motherboard, P55-VP 2 using VIA Apollo VPX pci chipset. Anyone know how to get this motherboard to run a Pentium MMX CPU at the 75MHz fsb ? e.g. 166 mmx running at 187.5 MHz ?

Has anyone tried this motherboard with a Voodoo3 2000 PCI graphics card, or any of the nVidia products ? I am looking for a cheap upgrade to 1998 performance levels for this 1996 PC.

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