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Is my CMOS dead?
I have two Dell Inspiron 3800 notebooks and am having the same problem on both of them. When I press the "on" button, the LED's for the on/off, caps lock and scroll lock all light up for about 4 seconds, then goes off. The machines never even show the BIOS info screen. These machines have been sitting around for a while unplugged, so I suspect that there is a dead CMOS battery.
My questions are:
1) Does my guess of the CMOS battery being dead sound correct?
2) Is this something someone handy with a soldering iron could do themselves?
3) Where can I get a CMOS battery for this model?
My questions are:
1) Does my guess of the CMOS battery being dead sound correct?
2) Is this something someone handy with a soldering iron could do themselves?
3) Where can I get a CMOS battery for this model?
dallascowboyswo
4 Apprentice
•
2380 Posts
216
0
Posted October 24th, 2006 18:00
When a system will not POST. To check to see if it is the mother board you must remove all crus and see if you get a POST beep. Remove cdrom drive, hard drive, battery, and pccard. Disconnect any thing you have plugged in externally. Take the memory out and reseat it. Plug the system in to the ac adapter. Make sure the a/c adapter is getting the light on indicating it is powered on. See if the system will boot with only memory. If it does then put in crus on at a timer verifing that the system will boot each time. If you dont get a POST then yes it is probably the motherboard.
Inspiron E1505
Intel Core 2 Duo processor T7200 (4MB/2.00GHz/667MHz)
15.4 Inch UltraSharp TrueLife Wide-screen WSXGA+
1GB, DDR2, 533MHz 2 Dimm
256MB ATI MOBILITY RADEON X1400
120GB 5400RPM SATA Hard Drive
8X DVD+/-RW Drive
Intel PRO/Wireless 3945 802.11a/g Mini Card (54Mbps)
Dell Wireless 355 Bluetooth Module (2.0 + EDR)
Windows XP Media Center Edition 2005
Bios A08
pur. Sept. 7 2006
WRT54G Linksys router v2
ZoneAlarm Pro v 6.0.667.000- http://support.dell.com/support/edocs/systems/pstar/en/sm_en/index.htm Lots of info in the service manual. Yours has a Reserve Battery instead of a cmos, but that would show up as incorrect date and time. Look under Replacing Parts.
bond777
23 Posts
216
0
Posted October 24th, 2006 16:00