Bad check sum cmos - Toshiba Equium 2000 (PV1065E0-011FR) PC Desktop

replace your cmos battery.

change the cmos battery

Looks like the CMOS battery is dead. Open up the case and check the motherboard. You will find a small battery. Buy a new one and replace it and see what happens. www.tigerdirect.com will have what you need or if you are lucky radio shack will have it.

Chris Thrash
B52Computers

You need to fit a new bios battery a cr2032 normally

My tech team and I can help lots with PC stuff it would begreat if you could ask any PC questions you have here so we can guide youthrough it and discuss it properly http://www.mypcmates.com

You may have damaged the motherboard or memory... However, I don't see how you inserted the memory backwards. 168-pin memory is keyed and can usually be inserted only one way. A CMOS check sum error is usually caused by corrupted data in the CMOS memory. When the computer boots it adds all of the ones and zeros in the CMOS and drops the carry bit. It compares the resulting sum to a like (we hope) sum that was generated when the CMOS data was produced. If the two do not match, the CMOS is presumed corrupted, and an error is generated. The corruption can be caused by defective CMOS memory or power problems caused by a shorted motherboard, an expansion card that is not properly seated, a defective component, etc. I would check the battery with a multimeter and make sure it is good and installed correctly. Some older motherboards have a CMOS battery soldered onto the motherboard and have a jumper which must be changed to use an external battery. The battery on the motherboard should be removed if an external battery is installed. It can leak and damage the motherboard beyond repair. Do not use a soldering iron or anything hot to remove a battery form a motherboard. The battery can explode. I use a combination of pliers and diagonal cutters to remove these batteries. The computer must be unplugged when doing it and care must be employed (not an operation for an overly ambitious gorilla). Some batteries include the system clock, are usually black and rectangular, soldered to the motherboard, and are supposed to have a 10 year or greater lifetime. When they fail, the motherboard is usually a goner. Most motherboards have a jumper, which can be used to discharge (erase) the CMOS memory, and this may fix the problem. Be sure the computer is off and unplugged, move the jumper to the discharge position, wait 10 minutes, move it to the normal position, attach the power cord, and turn-on your computer. Some motherboards can be damaged it the computer is powered on with the jumper in the discharge position

Check your system USB connector having any short circuit, you can test it by removing all USB connections. Then again it showing USB over current error it is related to your Motherboard ICH problem, motherboard to be replaced

Bios Eprom issue. Get a new motherboard

Hi canturob,
When a system reports a check sum error the bios is telling you the information stored from the last working boot does not match the current settings stored in the bios. Please power down your MSI system, unplug the power cord. Open the case & clear the bios. Location of JBAT1 on page 3 in manual.
Clear CMOS Jumper: JBAT1 page 10 in the manual. Remove the battery/cmos. Check it's voltage with a volt meter. It should test to 3volts DC. Anything less & the battery needs to be replaced.
While in the case re-check all data cables & power cables for good connection.
The MSI board uses the Award bios. Your current beep code of 1 long & six short is not a common beep code for the Award bios. See bios beep codes here: http://www.bioscentral.com/beepcodes/awardbeep.htm

If the battery checks out ok, you may need to update the bios. Go to MSI: http://global.msi.com.tw/index.php?func=downloaddetail&type=utility&maincat_no=1&prod_no=205
To update your MSI bios (Option only if bios clear fails to resolves the check sum issue).

Good luck canturob!
Mike

svjyrat

"always message to press F4 at the time of star up". this problem happen when CMOS detect any error. is also happen if CMOS battery fail (Chack sum error).

to solve this problem at first check CMOS battery (it voltage less then 3V or not) if it bad then replace it. u can buy this battery form any computer accessories shope.

or if u not connect floppy drive, and controller enable. if u desable floppy drive contoller from CMOS setup (in intel mother board is show BIOS setup) then this problem solved.