CPU red light on start up

liam schofield · Jan 17, 2015

I'm having a problem, i turn my PC on and i get a solid red CPU light on my Asus Sabertooth 990FX R2.0 and it doesn't post, but when i turn it off and switch off at the power supply and then back on its fine, other times ive done this and a keep getting a solid CPU light, ive gone through everything from rewiring my computer, to getting a 1000W power supply. can anyone help please?
here are my specs:

ASUS Sabertooth 990FX R2.0
FX8320 CPU
EVGA 1000 watt G2 psu
H110 water cooling
XFX 7950 GPU
1Tb Seagate hard drive
128GB SSD

alexoiu · Jan 17, 2015

Have you tried updating the BIOS?

liam schofield · Jan 17, 2015

alexoiu :

not at all didnt think this could cause such problem i shall give it a try thanks

alexoiu · Jan 17, 2015

No problem. Please post back the result.

liam schofield · Jan 18, 2015

alexoiu :

seems to have worked, but now everytime i turn my pc on the time is different although i set it in the bios

alexoiu · Jan 18, 2015

Did you re-seat the battery? It might not be properly seated.

liam schofield · Jan 18, 2015

alexoiu :

yeah its a new battery i checked to make sure it was in properly

alexoiu · Jan 18, 2015

And, still the same?

liam schofield · Jan 18, 2015

alexoiu :

yeah i set the time in the bios to the correct time saved it, and used the pc for a bit, turned it off to go out, come back turn it on and my desktop shows a different time go to the bios and thats the same time thats showing on my desktop, its not the right time, how do i keep it to the right time??

its as if my computer is stopping the time when i turn it off and shows that time when i turn it back on

alexoiu · Jan 18, 2015

When did you replace the battery?

liam schofield · Jan 18, 2015

alexoiu :

2 days ago, its a brand new battery, i went to a computer shop for it on that same day as replacing it

also failed to mention, i have 16gb corsair vengeance ram but two sticks are at 1600mhz and two are at 1866mhz, but i have set my bios to 1866mhz and they all seem to be running fine

alexoiu · Jan 18, 2015

You had the same issue with the old battery?

liam schofield · Jan 18, 2015

alexoiu :

yeah but that kept changing the date to 2008, i thought it was a bad battery thats why i changed it, this one just seems to stop the time when i turn off my pc and carries on from that time when i turn it back on

alexoiu · Jan 18, 2015

That's quite weird. It might be a BIOS issue. You can try flashing a previous version (2301).

liam schofield · Jan 18, 2015

it could be, i could try that, its not a major issue i can just change the time on my desktop everytime i log in might be the safer option, just wondered what the problem might be, thank you for you help

alexoiu · Jan 18, 2015

No problem.

bmacsys · Jan 18, 2015

liam schofield :

The battery is probably dead. It has been sitting on a shelf for years at that store. You really, really need matched sticks of ram. Unmatched or single sticks are a big, big fail.

liam schofield · Jan 18, 2015

bmacsys :

but it seems to remember the date fine, and i wasnt going to have 16GB of ram but my cousin bought the wrong one for his system so i said i would have it and i would buy the one he needed for his system, thought it wouldnt be a problem aslong as the timings are correct

CPU red light on start up

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