Ron; I would double (triple) check the voltage settings on the mobo the K6-2 500 cpu uses 2.2volts as opposed to the 166 pentium's 3.3volt. I think I remember some K6-2s that were 2.3 and 2.4volts too. It should say on the cpu what voltage it is. For 2.2volt the 5ehm/5eh5 switch two should be set: 1-off 2-on 3-off 4-off 5-off JP1: 1-2-close 3-4-close The power supply should be adequate some systems ran that cpu on on a 145watt supply. My best advice - make sure the cpu is inserted fully/properly with no bent pins then take the cpu to a friend or a shop and have it tested if it still doesn't work. That's a good fast board the cpu should work fine if everything is configured correctly <>< Larry Fisk Fisk Computers Fruitvale, Idaho ----- Original Message ----- From: "Ron Dawson" <[log in to unmask]> To: <[log in to unmask]> Sent: Saturday, January 25, 2003 4:12 PM Subject: [PCBUILD] Can Not Post with K6-2 > I am attempting to upgrade an older system with a AT/ATX Soyo SY-5EHM/5EH5 V1.1 Super 7 motherboard. I have upgraded the Pentium 166 >processor to an AMD K6-2 500 (used & purchased off eBay). This AMD CPU is on the approved upgrade list within the Soyo manual. I have reset all the required motherboard jumper settings to correspond with the AMD CPU and have added memory Dimms capable of 100mz bus speed, but the system will not post. I get nothing on the monitor. I have checked and double checked the jumper settings and have even reset them all back to the original settings, reinstalled the Pentium 166 CPU and booted it up to assure that the AGP video card was good. Before I assume the AMD processor is bad, my question is: The Mini AT Enlight PC case I am using only has a 200 watt(max)power supply. Is it possible that the motherboard and CPU are under > powered, preventing a post. From what I can find the AMD CPU only requires 25 watts, so I'm preplexed. The NOSPIN Group Promotions is now offering Mandrake Linux or Red Hat Linux CD sets along with the OpenOffice CD... at a great price!!! http://freepctech.com/goodies/promotions.shtml