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upgrading 166MMX to AMD k6-2 400

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Original Message
Name: totty
Date: January 22, 2002 at 05:45:57 Pacific
Subject: upgrading 166MMX to AMD k6-2 400
Comment:

I'm planning on upgrading my 166MMX to a AMD k6-2 400. I've been told it can be done on my board but I dont know the jumper settings.

I had the following conversation with someone at gateway about this:

Question: I was chatting with corry and my browser crashed, I need to change my cpu core voltage

( Allan has joined )
( Michael has joined )
Michael: Hello Allan, welcome to Gateway Chat Support.I am Michael here to assist you with your issue.
Michael: Please wait while I search for your customer information.
Michael: Allan can you plese tell me the serial # of your system?
Michael: Are yout there with me?
Allan: Hi, sorry I cant, I'm at work and I've brought very little info with me. my motherboard is a mbdsac091abww25011218 and I would like to lower the cpu core voltage to between 2.5 and 2.2 if its possible so I can run a AMD k6-2 400 sorry I'm a slow typer
Michael: Thanks for the information Allan.
Michael: Just give me a moment while I search this for you.
Michael: For your information Allan you can use the AMD k6-2 400 processor on your motherboard.It is supported.
Michael: Regarding the CPU voltage issue,give me another moment,let me find the detalis of the procedure.
Michael: Sorry for the delay. Please continue to hold and I will be with you in a few minutes.
Michael: Allan thanks for waiting.You have been very cooperative.I would like to inform you that the voltage settings for you system cannot be brought down to less then 3.3v.
Michael: Is there any other information I can provide you with?
Michael: I am waiting for your response.
Allan: The AMD k6-2 runs on a i/o cpu voltage of 3.3v which I think is the figure youve quoted but it has a core volttage of 2.2 to 2.5. the chip thats currently on the board is a 166 with a core voltage of 2.8.
Allan: I think I might just have to give it a try and hope for the best. Since it is supported it must be worth a try, it might automaticaly set the core voltage
Michael: Allan, Iwould advise you to try this under technical supervision.
Michael: Allan some motherboards do autoconfigure the core voltage.I would also advice you to try doing so without the jumper settings and if it does not work then try with setting the jumper at Pin 1 and Pin 2.
Allan: Its ok, I'm the technical support for this company, and the computer was given to me for free so it doesnt matter if I damage it. Can you send me any info that might be useful, like wherever you read the AMD k6-2 400 processor on your motherboard.It is supported.
Michael: I appriciate your concern for the issue.
Michael: Fine Allan,for the core cpu voltage try the jumper settings with Pin2 and Pin 3.
Allan: Thanks allot, you've been a big help. If I ever buy a new system I'll consider a gateway, this is the best technical support I've found on the net
Michael: Is there any other issue I can help you with today?I would more then be glad if I could be of any help.
Allan: No thanks, thats all.
Michael: We value your opinions about Gateway and will be forwarding your comments to our Customer Service team. Kindly fill and send the "SurveyForm "which will help me to serve you even better next time. Thank you for using the Gateway Chat Center. Our chat session will now be closed. It's my pleasure chatting with you. Have a nice time, Good Bye.


Has anyone got any more info that might help me ?


Thanks
Allan


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Response Number 1
Name: Justin
Date: February 6, 2002 at 09:04:45 Pacific
Reply: (edit)

Considering you're talking about .03 extra volts...hmmm I wouldn't bother other than ensuring PLENTY of cooling or oversized fan for this CPU...just in case.

Technically, a device that say runs off of 5VDC will only draw 5VDC if you have 12V plugged into it. You will have 12V applied to the device but it will only use 5V of the 12...

Besides, I've done this before on an old Socket 7 amptron board P120...Core Voltage at 3.3 or something like that and plugged in a Cyrix with a 2.? core...

About the auto-voltage selection..It won't auto select if you have a large connector on the board that you know isn't IDE, Serial, etc. I'm talking 1/2 inch wide and as long as a IDE plug, dual row, tho the pins are spaced like the connectors for the LEDs. This connector, usually white, is for a VRM or Voltage Regulator Module, that is necessary for changing the voltage output to the CPU...Good luck


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