- Oct 20, 2013
- 11
- 0
- 10,510
Hello,
this is my system:
- Corsair Carbide 400R Case
- OCZ ZT Series 750W Modular PSU
- ASUS Sabertooth P67
- Intel Core i7-2600K
- Corsair H100i liquid cooling kit
- AMD Radeon HD 6770 (ASUS DirectCU II)
- Corsair Vengeance RAM (4*4GB)
I have recently rebuilt it, after RMAing the MOBO for a socket problem.
When I booted it up, I noticed that only 8GB of the 16GB were being detected.
The BIOS properly detects all the 4 RAM modules, but still uses only 8GB of RAM.
Same with Windows 7, Windows 8, Linux Mint and memtest86+.
I thought that there could have been a bent pin on the socket, so I removed the CPU and checked, but there wasn't any.
I've tried each RAM module separately, all of them do work fine (4GB detected).
I've also tested them in couples, in every possible combination, and they work fine (8GB detected).
But when I install all 4 modules, it still detects only 8GB of RAM.
Also: my RAM is rated 1600MHz, but the MOBO sets the maximum bandwidth at 1333MHz. Changing it manually results in POST failing, and I have to press the MemOK button on the MOBO (which is a button that resets the memory setting to default to boot up the system in situations like mine).
If it is the MOBO, I would buy a new one (GIGABYTE Z77X-UD3H), because I wanted to upgrade to a Z77 board anyway.
But if it is the CPU... Well, I wouldn't buy a 2-generations-old CPU, so I would have to buy a new CPU and a new motherboard that supports 4th gen i7 CPUs.
How can I identify the problem?
this is my system:
- Corsair Carbide 400R Case
- OCZ ZT Series 750W Modular PSU
- ASUS Sabertooth P67
- Intel Core i7-2600K
- Corsair H100i liquid cooling kit
- AMD Radeon HD 6770 (ASUS DirectCU II)
- Corsair Vengeance RAM (4*4GB)
I have recently rebuilt it, after RMAing the MOBO for a socket problem.
When I booted it up, I noticed that only 8GB of the 16GB were being detected.
The BIOS properly detects all the 4 RAM modules, but still uses only 8GB of RAM.
Same with Windows 7, Windows 8, Linux Mint and memtest86+.
I thought that there could have been a bent pin on the socket, so I removed the CPU and checked, but there wasn't any.
I've tried each RAM module separately, all of them do work fine (4GB detected).
I've also tested them in couples, in every possible combination, and they work fine (8GB detected).
But when I install all 4 modules, it still detects only 8GB of RAM.
Also: my RAM is rated 1600MHz, but the MOBO sets the maximum bandwidth at 1333MHz. Changing it manually results in POST failing, and I have to press the MemOK button on the MOBO (which is a button that resets the memory setting to default to boot up the system in situations like mine).
If it is the MOBO, I would buy a new one (GIGABYTE Z77X-UD3H), because I wanted to upgrade to a Z77 board anyway.
But if it is the CPU... Well, I wouldn't buy a 2-generations-old CPU, so I would have to buy a new CPU and a new motherboard that supports 4th gen i7 CPUs.
How can I identify the problem?
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