Help! The computer restarts repeatedly before booting, possibly due to a cold boot?
Help! The computer restarts repeatedly before booting, possibly due to a cold boot?
Hi!
I recently upgraded my PC a few days ago, switching from AMD to Intel.
My overclocked Intel CPU is running at 4.1 GHz (now similar to an i7 6700K).
Gigabyte motherboard, R9 280 graphics, 650W PSU, and 12GB DDR4 RAM (I had 16GB but the system won’t start with the third stick; it seems faulty).
Regarding the issue: Overclocking works fine when I restart the computer. However, if I turn off the PC and wait a while before trying to power it back on, something strange happens. The machine powers up completely, but there’s no screen—like it just shut down after two seconds. Then it restarts by itself, turns on, skips BIOS, dies after a few seconds, and then restarts again (before the BIOS loads) before finally booting up. This cycle repeats 3-4 times before it finally starts.
The first time this occurred, the computer displayed code 19, indicating pre-memory South bridge initialization started on the motherboard and then died quickly. I only pressed the power button once.
Anyone know how to resolve this?
On my first attempt, the message said overclocking failed, and later it showed bios failure or a downclock attempt. After updating the BIOS to the latest version (which blocks downgrading), the error disappeared and the motherboard didn’t downclock the CPU. Still, the cold boot problem remains. The issue happened with the faulty RAM stick too—if I removed the GPU, would that help? Could it be a bad motherboard or something? What do you think?
Hope you have time to read this.
Thx
Boost the vcore man. I encountered the same problem during my previous build. It was a Sandy Bridge i7 with a large motherboard. Whenever I powered it up from sleep, it would repeat that issue. It seems there wasn't enough initial voltage. Since you're using only three RAM sticks, make sure those closest to the CPU are installed. Also, remove all the RAM completely. Get a quad kit instead—one that includes all four sticks in one package. Personally, I prefer dual kits, but they're identical and I received them from the same store at the same time without any problems.
it seems like a RAM problem. originally you had 18 GB of DDR4, now it's only 14 GB. that means you mixed up the RAM types. the issue is the mismatched RAM. it doesn't function properly. choose a single full kit instead of combining different ones. if you need more RAM later, purchase the complete set you need. avoid adding RAM pieces to your system.
The issue seems to be related to mixing different RAM modules. Originally it was 18 GB of DDR4, now only 14 GB, which indicates you mixed and matched the RAM. The problem lies in this inconsistency. It doesn't function properly. Please choose a single full kit if you need more RAM later. Adding RAM without a complete system isn't recommended.
The issue seems to be related to mixing different RAM modules. The original setup was 18 GB, now it's 14 GB, indicating a mismatch in the RAM types. This mixing and matching is causing problems. It would be better to stick with one compatible kit. If you plan to add more RAM later, consider purchasing a complete set that matches your requirements. Avoid adding RAM pieces haphazardly.
If you stick to the standard BIOS configurations, overclocking isn't necessary, is it okay? Could you tell me what motherboard you're using and your overclock parameters? I'm running Gigabyte GA-Z170X-UD3 / Z170 with default settings and clock speeds. The issue only appears when the system is cold or idle for a while. The base clock and multiplier are around 1.25x24 buss speed, which gives me approximately 175 MHz. My actual speed is about 4.08 GHz.
Andy Man shared concerns about a possible RAM issue, noting the change in memory size from 18 GB to 14 GB. He suggests mixing and matching RAM modules, which is causing the problem. The advice is to use a single full kit instead of adding RAM pieces. I concur that this is likely the cause. Sometimes even with four stick kits, the voltage to the memory controller needs a slight adjustment. It could also be related to RAM voltage, though it might depend on the speed and brand. My friend mentioned there are no issues if RAM speeds and brands match, but it’s worth checking.
The issue seems to be related to mixing different RAM modules. The system is functioning with 14GB instead of the expected 18GB, indicating a mismatch. It’s best to use a single compatible kit moving forward. If you plan to add more RAM later, consider purchasing a complete set suited for your needs. Don’t just add RAM without checking compatibility.
ingtar33 :
alfong00 :
andy_Man :
ingtar33 :
the issue seems to be related to RAM. Originally it was 18 GB of DDR4, now it's 14 GB? That suggests you mixed up the RAM types. The problem lies in the mismatch. It won't work as is. Please upgrade to a single kit. If you plan to add more RAM later, purchase the full set you need. Avoid adding RAM haphazardly.
I think this is likely the cause. Even with 4 stick kits, the voltage to the memory controller might need a slight adjustment.
Yes, it could be RAM-related too—it's similar to losing power and then the issue appears. Maybe testing with just one stick tomorrow would help.
If you need to raise the voltage for the memory controller, where should I adjust it and how much? Is it different from the RAM voltage?
My friend says there used to be no problems if the RAM is the same speed and brand, but it might still depend on the setup.
It could also be a dual channel configuration—then you’d need to remove the pair from the dead RAM chip to fix it.
I realized I mixed up the numbers earlier. I’ll try again tomorrow, thanks.