CMOS Checksum Bad: First time PC builder MSI 790FX - GD70

Maddeline · Dec 19, 2011, 01:20 AM

Hello! I hope you're having a better day than I am! lol So I brought this gaming PC a few months ago and its been working extremely well until now! It has been crashing, Blue screening, and doing bad things so I decided to switch out the ram. I've never done it before but I thought it would be easy. I got the same exact RAM as it had before, installed it, started up my PC than I came to a screen getting me a whole brunch of options and an error: CMOS Checksum Bad

A7577AMS V1.3 042709
AMD Phenom II X4 955 Processor
DRAM Frequency For DDR3 1333 (Unganged mode. 64 - bit)

1 AMD North Bridge Rev C1
Initializing USA Controllers Done
8192MB OK
USA Devices
SATA 5 Hard Disk
SATA 4 ATAPI CDROM
.......
........
CMOS Checksum Bad
Press F1 to Run SETUP
Press F2 to load default values and continue

F11 to enter Boot Menu

THINGS I've tried:
Switching out the motherboard battery, pushing the reset button, changing the date/time in the BIOS, Unplugging, checking connections, cleaning, reading manuals

Maybe I should have let a professional install my RAM!

I have a MSI 790FX - GD70 Motheroard. So if you could PLEASE send sometime using your amazing brain to help me solve this issue, that would be great! Thank you and have a nice day!

Cybrnook · Dec 19, 2011, 01:21 AM

That's fine, just go into the BIOS and set the clock, or press to continue. That's normal for a PC first booting up after being built.

EDIT: See you have tried the time. Try a new battery? (Damn, you tried that too)

If it was RAM, it would not even post. So I would not focus on that.

Maddeline · Dec 19, 2011, 01:23 AM

I have tried a new battery. Does it need to be the exact same battery as the old one? I've used one just hanging around in my stuff. lol The time is setup correctly now and I still can't boot

Cybrnook · Dec 19, 2011, 01:24 AM

What happens when you press F2 to continue?

The reason I am focusing on the battery is you normally see this message when you have set your values in the BIOS - Saved to CMOS, then change something, Like RAM size. Then it will appear. Or if the battery is dead, then it forgets it settings whenever its powered off and comes back every time you power back on.

Normally I would stick to the same battery size as you can be sure its making the proper + and - connections.

Have you tried clearing the CMOS and staring fresh?

cdawall · Dec 19, 2011, 01:27 AM

Sounds like the BIOS needs a reflash see if you can flash via USB drive. I am pretty sure that one does.

Maddeline · Dec 19, 2011, 01:28 AM

How do I reflash the BIOS? When I press F2 it loads then just stays on a black screen. Thanks for your help! So I go out shopping for the EXACT battery size and voltage? THANKS AGAIN!

Cybrnook · Dec 19, 2011, 01:31 AM

Before we get too far with multiple ideas thrown at you, do you know how to enter the BIOS and set your values correctly?

You will need to make sure you have your boot device order set correctly.

Meaning, you need to make sure you have your HDD as your primary default boot device, and make sure its either set to AHCI or IDE (Whatever you had ti set to when windows was installed).

Cybrnook · Dec 19, 2011, 01:32 AM

Quote:

Originally Posted by Maddeline

How do I reflash the BIOS? When I press F2 it loads then just stays on a black screen. Thanks for your help! So I go out shopping for the EXACT battery size and voltage? THANKS AGAIN!

Always good practice

Maddeline · Dec 19, 2011, 01:32 AM

I know how to get into the BIOS but no idea how to set the values or where to set up for the RAM

Maddeline · Dec 19, 2011, 01:33 AM

So my SATA should be my first choice for booting right?

Cybrnook · Dec 19, 2011, 01:35 AM

Ram should set default values for you. Granted they may not be optimal, but that's not the issue.

You will need to navigate your BIOS and look for "Startup" or "Boot Menu" or "Boot Order", something along those lines.

And see what is set as your primary boot device. You want the PC to try and boot to your HDD first and foremost when the PC is powered on.

But, if your battery deal is wonky, then all these settings may be resetting everytime we power cycle.

BUCK NASTY · Dec 19, 2011, 01:35 AM

Quote:

Originally Posted by Maddeline

So my SATA should be my first choice for booting right?

Yes, that is if your primary HD is recognized. Do you see the HD model number in Bios boot menu?

Cybrnook · Dec 19, 2011, 01:35 AM

Quote:

Originally Posted by Maddeline

So my SATA should be my first choice for booting right?

If that is where your HDD is.

Maddeline · Dec 19, 2011, 01:38 AM

My Boot sequence is SATA: SM Samsun then CD/DVD 4S-PLDS is this correct? Thanks again!

Cybrnook · Dec 19, 2011, 01:43 AM

Quote:

Originally Posted by Maddeline

My Boot sequence is SATA: SM Samsun then CD/DVD 4S-PLDS is this correct? Thanks again!

Your DVD drive is the CD/DVD (Plextor it would seem) obviously, is your HDD a Samsung? You want it to list your HDD brand

for example Western Digital is normally WDC..... Seagate is SG or ST ...... etc.....

cdawall · Dec 19, 2011, 01:44 AM

Save the newest version of the GD70 BIOS to a flash drive. Go to this

BIOS page and flash a new BIOS off of your flash drive.

Maddeline · Dec 19, 2011, 01:45 AM

I can't seem to find my HDD in the list. The only two options that I can boot from are SATA and CD / DVD do you think my HDD is disconnected or something? Thanks!

Cybrnook · Dec 19, 2011, 01:46 AM

Quote:

Originally Posted by Maddeline

I can't seem to find my HDD in the list. The only two options that I can boot from are SATA and CD / DVD do you think my HDD is disconnected or something? Thanks!

If you go into your SATA settings, what is listed? Should show you whats connected or your main screen.

If you choose to go the BIOS update method like CD is saying:
http://www.msi.com/product/mb/790FX-...tml#/?div=BIOS

Maddeline · Dec 19, 2011, 01:51 AM

Thanks I'm going to download the BIOS now! Do I download the first option?

Cybrnook · Dec 19, 2011, 01:52 AM

Quote:

Originally Posted by Maddeline

Thanks I'm going to download the BIOS now! Do I download the first option?

Latest Version is 1.H

Widjaja · Dec 19, 2011, 01:53 AM

If you can not see your HDD in the list then either:-
The SATA cable is not plugged in properly
The SATA cable is faulty
The logic board on the HDD has gone bad.

As you mentioned it started to blue screen so I would be looking at a faulty HDD or SATA cable issue at the moment rather than a dodgy BIOS.

Cybrnook · Dec 19, 2011, 01:55 AM

Quote:

Originally Posted by Widjaja

If you can not see your HDD in the list then either:-
The SATA cable is not plugged in properly
The SATA cable is faulty
The logic board on the HDD has gone bad.

As you mentioned it started to blue screen so I would be looking at a faulty HDD or SATA cable issue at the moment rather than a dodgy BIOS.

OR swapping to a new SATA connector on the MB.....

Maddeline · Dec 19, 2011, 01:56 AM

Thanks yes it did start to bluescreen and I might need to replace my HDD!

As for the BIOS, I copied the new BIOS to the flash drive, inserted the flash, did the stuff in the BIOS, press F10 then restarted seeing what is going to happen now. Thanks!!

Maddeline · Dec 19, 2011, 01:57 AM

hahahaha Nooo idea which cord the SATA cord is but hopefully I have extra!

I'll look into it, thanks again!

Cybrnook · Dec 19, 2011, 01:59 AM

Quote:

Originally Posted by Maddeline

hahahaha Nooo idea which cord the SATA cord is but hopefully I have extra!

I'll look into it, thanks again!

On the HDD, you have a power cable , and a SATA cable. Power will be obvious. The smaller cable is the SATA cable, and if you follow it, it will be plugged directly into a SATA port on the MB.

Dec 19, 2011, 01:20 AM	#1
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	CMOS Checksum Bad: First time PC builder MSI 790FX - GD70 Hello! I hope you're having a better day than I am! lol So I brought this gaming PC a few months ago and its been working extremely well until now! It has been crashing, Blue screening, and doing bad things so I decided to switch out the ram. I've never done it before but I thought it would be easy. I got the same exact RAM as it had before, installed it, started up my PC than I came to a screen getting me a whole brunch of options and an error: CMOS Checksum Bad A7577AMS V1.3 042709 AMD Phenom II X4 955 Processor DRAM Frequency For DDR3 1333 (Unganged mode. 64 - bit) 1 AMD North Bridge Rev C1 Initializing USA Controllers Done 8192MB OK USA Devices SATA 5 Hard Disk SATA 4 ATAPI CDROM ....... ........ CMOS Checksum Bad Press F1 to Run SETUP Press F2 to load default values and continue F11 to enter Boot Menu THINGS I've tried: Switching out the motherboard battery, pushing the reset button, changing the date/time in the BIOS, Unplugging, checking connections, cleaning, reading manuals Maybe I should have let a professional install my RAM! I have a MSI 790FX - GD70 Motheroard. So if you could PLEASE send sometime using your amazing brain to help me solve this issue, that would be great! Thank you and have a nice day!

Processor:	i7 2600K \| Phenom II 840
Motherboard:	ASUS P8Z68 Deluxe \| ASUS M4A88T-M
Cooling:	Corsair H60 \| Scythe Samurai ZZ
Memory:	4x4GB Samsung Green 1600 @ 1866 \| 2x2GB Corsair XMS3 1333
Video Card:	Evga GTX 670 FTW \| On Board AMD
Hard Disk:	2 x 64GB Samsung 830, Velociraptor 300GB,1TB Black,1.5TB Black \|10TB server
Optical Drive:	Plextor DVD burner, LG Bluray
CRT/LCD Model:	HP 2509m 25" 1080p
Case:	Lian Li PC-V1020A \| Lian Li PC-V354A
Sound Card:	Azuntech Bravuria 7.1 \| On-Board (Disabled)
PSU:	Seasonic X-series 760 , Seasonic X-series 760
Software:	Windows 7 Ultimate X64 \| UnRaid (CentOS)

Processor:	i7 2600K \| Phenom II 840
Motherboard:	ASUS P8Z68 Deluxe \| ASUS M4A88T-M
Cooling:	Corsair H60 \| Scythe Samurai ZZ
Memory:	4x4GB Samsung Green 1600 @ 1866 \| 2x2GB Corsair XMS3 1333
Video Card:	Evga GTX 670 FTW \| On Board AMD
Hard Disk:	2 x 64GB Samsung 830, Velociraptor 300GB,1TB Black,1.5TB Black \|10TB server
Optical Drive:	Plextor DVD burner, LG Bluray
CRT/LCD Model:	HP 2509m 25" 1080p
Case:	Lian Li PC-V1020A \| Lian Li PC-V354A
Sound Card:	Azuntech Bravuria 7.1 \| On-Board (Disabled)
PSU:	Seasonic X-series 760 , Seasonic X-series 760
Software:	Windows 7 Ultimate X64 \| UnRaid (CentOS)

Dec 19, 2011, 01:27 AM	#5
cdawall where the hell are my stars Join Date: Jul 2006 Location: some AF base Posts: 16,025 (6.42/day) Thanks: 457 Thanked 2,755 Times in 2,224 Posts System Specs	Sounds like the BIOS needs a reflash see if you can flash via USB drive. I am pretty sure that one does. __________________

System Name:	Deployment build
Processor:	Phenom II B97@4080mhz 1.6v (24/7 4800mhz max clock)
Motherboard:	Asus Crosshair V Formula
Cooling:	Coolermaster V10 modded to 96w TEC, Scientific Rulian fans
Memory:	4x4GB Wintec ONE@1800 9-10-9 1.62v (24/7)
Video Card:	Sapphire 7950 3GB@1150/1400 1.27v
Hard Disk:	2x32GB STT SSD's raid 0, 1TB Samsung F3's, 1.5TB Seagate 7200.11
CRT/LCD Model:	STi 22"
Case:	Thermaltake Commandar MS-I Epic Edition
Sound Card:	E07K USB DAC->Fischer FA-002W High edition
PSU:	Antec TPQ-850 (Antec TPQ-1200 waiting for it at home)
Software:	windows 7 ultimate x64

Dec 19, 2011, 01:21 AM	#2
Cybrnook Join Date: Sep 2009 Location: C:\Kitteh Posts: 683 (0.51/day) Thanks: 185 Thanked 136 Times in 120 Posts System Specs	That's fine, just go into the BIOS and set the clock, or press to continue. That's normal for a PC first booting up after being built. EDIT: See you have tried the time. Try a new battery? (Damn, you tried that too) If it was RAM, it would not even post. So I would not focus on that.

Dec 19, 2011, 01:23 AM	#3
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	I have tried a new battery. Does it need to be the exact same battery as the old one? I've used one just hanging around in my stuff. lol The time is setup correctly now and I still can't boot

Dec 19, 2011, 01:24 AM	#4
Cybrnook Join Date: Sep 2009 Location: C:\Kitteh Posts: 683 (0.51/day) Thanks: 185 Thanked 136 Times in 120 Posts System Specs	What happens when you press F2 to continue? The reason I am focusing on the battery is you normally see this message when you have set your values in the BIOS - Saved to CMOS, then change something, Like RAM size. Then it will appear. Or if the battery is dead, then it forgets it settings whenever its powered off and comes back every time you power back on. Normally I would stick to the same battery size as you can be sure its making the proper + and - connections. Have you tried clearing the CMOS and staring fresh?

Dec 19, 2011, 01:28 AM	#6
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	How do I reflash the BIOS? When I press F2 it loads then just stays on a black screen. Thanks for your help! So I go out shopping for the EXACT battery size and voltage? THANKS AGAIN!

Dec 19, 2011, 01:31 AM	#7
Cybrnook Join Date: Sep 2009 Location: C:\Kitteh Posts: 683 (0.51/day) Thanks: 185 Thanked 136 Times in 120 Posts System Specs	Before we get too far with multiple ideas thrown at you, do you know how to enter the BIOS and set your values correctly? You will need to make sure you have your boot device order set correctly. Meaning, you need to make sure you have your HDD as your primary default boot device, and make sure its either set to AHCI or IDE (Whatever you had ti set to when windows was installed).

Dec 19, 2011, 01:32 AM	#9
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	I know how to get into the BIOS but no idea how to set the values or where to set up for the RAM

Dec 19, 2011, 01:33 AM	#10
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	So my SATA should be my first choice for booting right?

Dec 19, 2011, 01:35 AM	#11
Cybrnook Join Date: Sep 2009 Location: C:\Kitteh Posts: 683 (0.51/day) Thanks: 185 Thanked 136 Times in 120 Posts System Specs	Ram should set default values for you. Granted they may not be optimal, but that's not the issue. You will need to navigate your BIOS and look for "Startup" or "Boot Menu" or "Boot Order", something along those lines. And see what is set as your primary boot device. You want the PC to try and boot to your HDD first and foremost when the PC is powered on. But, if your battery deal is wonky, then all these settings may be resetting everytime we power cycle.

System Name:	Main Rig
Processor:	AMD Phenom II x4 B93 @ 3.82Ghz
Motherboard:	ASUS M5A99X Evo
Cooling:	Coolermaster Hyper 212+
Memory:	8GB GSkill DDR3 1600
Video Card:	ASUS GTX460 Top DirectCU
Hard Disk:	Corsair Force 90gb SSD
Optical Drive:	ASUS CD/DVD RW
CRT/LCD Model:	ASUS 24" LCD
Case:	Coolermaster Centurion 590
Sound Card:	Onboard
PSU:	Antec TP750 80+
Software:	Windows 7 Ultimate 64

Dec 19, 2011, 01:38 AM	#14
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	My Boot sequence is SATA: SM Samsun then CD/DVD 4S-PLDS is this correct? Thanks again!

Dec 19, 2011, 01:44 AM	#16
cdawall where the hell are my stars Join Date: Jul 2006 Location: some AF base Posts: 16,025 (6.42/day) Thanks: 457 Thanked 2,755 Times in 2,224 Posts System Specs	Save the newest version of the GD70 BIOS to a flash drive. Go to this BIOS page and flash a new BIOS off of your flash drive. __________________

Dec 19, 2011, 01:45 AM	#17
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	I can't seem to find my HDD in the list. The only two options that I can boot from are SATA and CD / DVD do you think my HDD is disconnected or something? Thanks!

Dec 19, 2011, 01:51 AM	#19
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	Thanks I'm going to download the BIOS now! Do I download the first option?

Dec 19, 2011, 01:53 AM	#21
Widjaja Join Date: Jun 2007 Location: Wangas, New Zealand Posts: 4,023 (1.85/day) Thanks: 241 Thanked 617 Times in 534 Posts System Specs	If you can not see your HDD in the list then either:- The SATA cable is not plugged in properly The SATA cable is faulty The logic board on the HDD has gone bad. As you mentioned it started to blue screen so I would be looking at a faulty HDD or SATA cable issue at the moment rather than a dodgy BIOS.

System Name:	Darth Obsidious
Processor:	Intel i5 2500K
Motherboard:	ASUS P8Z68-V/Gen3
Cooling:	Cooler Master Hyper 212+ in Push Pull
Memory:	2X4GB Corsair Vengeance DDR3 1600
Video Card:	ASUS HD7870 Direct CU II
Hard Disk:	128GB Samsung 830 SSD, 1TB WD Black, 2TB WD Green
Optical Drive:	ASUS BC-12B1ST 12X Blu-ray Combo
CRT/LCD Model:	LG IPS234V-PN
Case:	Corsair Obsidian 650D
Sound Card:	Infrasonic Quartet
PSU:	Corsair HX650w
Software:	Windows 7 64bit and Windows XP Home
Benchmarks:	2cm mark on bench with a razor blade.

Dec 19, 2011, 01:56 AM	#23
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	Thanks yes it did start to bluescreen and I might need to replace my HDD! As for the BIOS, I copied the new BIOS to the flash drive, inserted the flash, did the stuff in the BIOS, press F10 then restarted seeing what is going to happen now. Thanks!!

Dec 19, 2011, 01:57 AM	#24
Maddeline Join Date: Dec 2011 Posts: 18 (0.03/day) Thanks: 19 Thanked 0 Times in 0 Posts	hahahaha Nooo idea which cord the SATA cord is but hopefully I have extra! I'll look into it, thanks again!

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