Member Avatar for cptrstuff

Added DDR memory chip from older E Machines computer to my new E Machines computer. New computer wd not restart after memory added. Removed added memory, but this did not help. Removed and reset original memory chip-- computer started normally but now the moniter says "No Signal". Help

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  • Latest Post Latest Post by joshSCH

Dani AI

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Good chance the system never actually POSTs, so the monitor shows its own "No Signal" message. Fans spinning is not the same as a successful boot. Building on and , here is a quick, safe workflow that usually brings an eMachines box back after a RAM change.

  • Power drain: shut down, unplug AC, hold the power button for 10-15 seconds.
  • Video sanity checks: try a different cable and input, and try both video ports if the PC has onboard graphics and a separate card. If a graphics card is installed, test once with the monitor on the motherboard port after removing the card.
  • Minimal boot: disconnect drives and USB devices. Leave only motherboard, CPU, 24-pin ATX and 4-pin/8-pin CPU power, one known-good RAM stick, and video. Verify the CPU power plug is firmly seated; it can loosen when pressing on RAM.
  • Reseat RAM correctly: align the notch, press straight down until both latches click. Try the primary slot (often DIMM1/A1) and then a different slot. If you have two original sticks, test each one by itself.
  • Clear CMOS to retrain memory: with power disconnected, use the CLR_CMOS jumper per the board label/manual, or remove the coin-cell battery for a few minutes, then reinstall. This resets timings that can get stuck after a failed memory change.
  • Beep/diagnostics: if the case has a tiny speaker, listen for beeps. No beeps at all often means CPU, motherboard, or PSU; repeating memory beeps points back to RAM. Add parts back one at a time when you get video.

Notes:

  • Do not mix memory types or speeds arbitrarily. Only modules the board supports should be used, and identical sticks are safest.
  • If none of the above helps, test with another PSU, a known-good RAM stick, or a different video card to isolate the failing part.

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Member Avatar for jbennet

1. Is the monitor cable actually connected (make sure its screwed in tight), and is it plugged into the correct port?

2. Is the graphics card (if you have one) seated correctly?

Member Avatar for joshSCH

You probably did not place your memory sticks in properly.. reseat them, and make sure they are all the way in (sometimes if may feel like you are pressing down too hard..)

Member Avatar for cptrstuff

Thanks, Josh
The problem is with my daughters computer-- I haven't been able to go to her place and try your suggestions yet. Really appreciate your help.

Member Avatar for joshSCH

Glad to help. I'm confident of my solution.. post here to tell us if it worked. :)

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