Member Avatar for Burim

I have read thread "My PC won't start - Read this first!" but still cannot solve my problem!

My onboard LAN port was crashed yesterday. Also from some month ago when I start PC show these messages Flopy failed... Pres F1 to continue, and in Windows change my date/time.

Yesterday I buyed a new PCI LAN card and a new cmos battery. And I have put in same time two components. When I power on pc, nothing is displayed in monitor. Fans work. Hdd light all time display. DVD-rom all time make some trying to read.

Today I change cmos jumper pin for about 1-2 hours and replace to default, and the PC start, but with messages: Pres f1 to continue, and changed date/time. I work some time, I installed driver for LAN card who work ok, and power off pc. After 2-3 hours when I try to power on again the pc wont start, same issue!!!

Please help me!

Edited by Burim because: n/a
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Generated

Thread author replaced the CMOS cell and added a PCI LAN card, then the machine stopped posting (fans spin, HDD LED solid, DVD-ROM busy). The brief successful boot after a CMOS clear then the later no-start points away from a simple battery fault and toward an intermittent hardware/power or board-level issue: the board is getting power but failing to complete POST or is being held while probing devices.

Recommended diagnostic flow (isolate, then add back one item at a time):

  1. Bench test outside the case on a non-conductive surface with only PSU, CPU (+cooler), one RAM stick, and video (if required). A successful bench POST implicates a case standoff, front-panel wiring, or a short.
  2. Remove the new PCI LAN card and all other expansion cards; power the bare system. If stable, test the LAN card in a different slot or different PC.
  3. Disconnect all drives and USB devices (leave only power, CPU, one stick RAM, and video). If POST proceeds, reconnect devices one at a time to find the culprit (the constant DVD activity suggests a device/controller hang).
  4. Try each RAM stick in the primary slot, one at a time. If no speaker/beep codes are present, attach a system speaker to capture POST codes.
  5. Rule out PSU issues: use a known-good PSU or a PSU tester. Verify the PSU provides a stable standby rail and that the board receives a proper PWR_OK signal (if measuring is possible).

Additional checks and cautions:

  • Inspect the motherboard for bulging caps, scorch marks, loose standoffs, or metal debris around PCI slots and the battery holder.
  • Verify front-panel power/reset wiring is correct; a stuck/reset switch or short can mimic no-POST.
  • If bench tests still fail but hardware looks normal, check the motherboard manual for BIOS-recovery procedures or consider reflashing with the vendor method.
  • Always unplug mains and observe anti-static precautions when probing hardware.

Systematic isolation with the steps above will identify whether the fault is the new card, a PSU instability, a board short, or failing motherboard components; document each test and result for a clear trail.

Recommended Answers

All 4 Replies

Member Avatar for techsheaven

Was the old battery corroded? Make sure the battery holder is clean and test the battery. Make sure it is the same voltage as the original. Check that the battery is oriented correctly.

If you still have problems, some boards can be fitted with an auxiliary battery.

Good Luck

Member Avatar for nezti

Do you have an external video card in your PC? Try to plug it out and use the built-in one. Hope this would be helpful.

Member Avatar for screwball2010

Simply pull your Battery,,unplug the machine,wait about 30 seconds,,then re-seat the battery, plug your MONITOR into your default ONBOARD VGA port,,if onboard.and plug in your machine. Enter your BIOS (setup) and go to your floppy and disable it,,disable FLOPPY SEEK and it won't say that anymore.
Set the time and date, make sure you have your BOOT ORDER correct.
I usually keep mine set at 1st boot device ATAPI CD DVDROM 2nd device HDD 3rd removable or USB.
Check your CMOS battery they are usually 3 volts,,some are 5 volts,,you can destroy your board using the wrong one.
TIP: if you had a video card or another device plugged into the PCI slot you put the Lan card in,,it will most likely still try finding the previous device in that slot and will give you some issues at first.
TIP: do you get any system beeps? a beep code often refers to some BAD RAM.

Member Avatar for hatti

my samsungr60 plus is fully charged but will not start up

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