Welcome, Guest. Please login or register.

Author Topic: A1XE : cpu fan not running, no video output  (Read 13857 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline kgrach

  • Full Member
  • ***
  • Join Date: Jul 2003
  • Posts: 157
    • Show all replies
    • http://www.revanchellc.com
Re: A1XE : cpu fan not running, no video output
« on: July 17, 2003, 02:24:28 AM »
Eyetech should post a warning sticker on that stupid fan I have seen more than a few users and a dealer who took the fan off the proper shipped position and stuck it in the wrong position. The fan in the proper position is offset to the front of the mother board. People see this and assume the fan is on wrong and "correct it". The fan is reverse polarity protected and won't spin backward. I have seen fans become fused when they where left in that position for too long.
WARNING!!!! if you replace the CPU fan or you use the case fan header. Cut the yellow wire that is on some fans. The yellow wire is a rpm sensor. If you hook that to the AmigaOne you will be putting noise on the 3volt bus.

Kinston SDRAM while recommended is no GUARANTEE THAT THE RAM IS GOOD.
Kinston SDRAM even the same model number vary greatly from batch to batch.

Odd behavior and random crashes or errors ARE ALMOST ALWAYS BAD RAM.....

Your problem is the Memory. The Amigaone Needs memory in order to run the X86 emulator so it can boot  the Video card.

To the individual having to reset the machine for the graphics card to work. I have seen this before. Guess what! That too was fixed with the substitution of proper memory modules

Not to do a plug for myself But.... That is why we are buying Memory  MADE FOR THE AMIGAONE/PEGASOS boards because of the inconsistencies with memory modules you buy you can never be sure if the memory you buy works correctly. These Modules have been made by the Manufacturer to work specifically for the AmigaOne and have a special model number. MHC-(XXXX)-R1XE. they even put together special 2 Gig packages for the AmigaOne.

One more warning for the DIYr's out there.  BE SAFE ALWAYS UNPLUG THE POWER SUPPLY FROM THE WALL BEFORE WORKING ON YOUR MACHINE. We need you and your machine in one piece.
 

Offline kgrach

  • Full Member
  • ***
  • Join Date: Jul 2003
  • Posts: 157
    • Show all replies
    • http://www.revanchellc.com
Re: A1XE : cpu fan not running, no video output
« Reply #1 on: July 18, 2003, 02:54:52 AM »

you can try to see if switching the FSB speed to 100 helps

look on your motherboard there are three jumpers in a row in front of the AGP slot.
change JP13 from 12 to 23
Remember to do this with the power plug removed from the wall.

If you do this and you get a plain blinking cursor on the screen.
you got the ram working enought to partialy boot  the card. Replace the SDRAM

If you got the full boot sequence and debain installs with no errors then the SDRAM is good It just won't work at 133 FSB you can now either replace it or change you CPU clock multiplier to 8X.

Sorry to be a jerk about this but I Have seen this quite abit. Most of problems People have with the Aone is Memory related maybe your dealer didn't check the entire batch or maybe not at all. Maybe they Just brought modules of a supposedly good type.

 Either that or your graphics card is bad.

You can check your Card by pluging it into a PC if the PC comes up to the post screen you know the card is good.