Hi Everyone,
Im a long time watcher of OcUK forums, but only recently have I needed to register and pose a question of my own.
I have just built a new SB setup using:
- P8P67 mobo (BIOS ver 1103 on arrival)
- i5-2500k @ 3.3GHz
- 4 x 2GB XMS3 Corsair 1600 C9
- Various SATA devices all plugged into the 6GB/s ports only
My previous system was a Q6600 overclocked to 3.4 GHz, so naturally I wanted to OC the i5-2500k to at least 4.5GHz.
After doing some research (and reading a good little article in CPC) I went ahead and did the following:
- BLCK - 100
- Multiplier - 45
- Mem frequency - 1600 (Manual)
- CPU voltage - 1.3
- DRAM voltage - 1.55 (was recommended 1.65 but I've read the i5-2500k doesnt like that)
- VCCSA - 1.0
- VCCIO - 1.10625
- CPU PLL Voltage - 1.9
- Disabled CPU spread spectrum
Everything ran absolutely fine, Prime95 stable for 3 hours without temps going above 60C.
Unfortunately, every time I try to boot, I get the little red DRAM_LED lighting up on me and no action on screen (fans are all running etc).
So I end up pressing MemOK! and having to reset the DRAM OC settings
Ive currently left the memory frequency on AUTO in the BIOS, however I'd much rather run it at 1600 than 1333.
Its probably also worth mentioning I often get several (multi-boots?) when I turn the rig on in the morning
(it turns on then off then on then off before booting properly) which can be annoying.
Sorry for the huge post, I just thought I'd provide as much info as possible! Any help would be greatly appreciated, thankyou!
Fradgers
Im a long time watcher of OcUK forums, but only recently have I needed to register and pose a question of my own.
I have just built a new SB setup using:
- P8P67 mobo (BIOS ver 1103 on arrival)
- i5-2500k @ 3.3GHz
- 4 x 2GB XMS3 Corsair 1600 C9
- Various SATA devices all plugged into the 6GB/s ports only
My previous system was a Q6600 overclocked to 3.4 GHz, so naturally I wanted to OC the i5-2500k to at least 4.5GHz.
After doing some research (and reading a good little article in CPC) I went ahead and did the following:
- BLCK - 100
- Multiplier - 45
- Mem frequency - 1600 (Manual)
- CPU voltage - 1.3
- DRAM voltage - 1.55 (was recommended 1.65 but I've read the i5-2500k doesnt like that)
- VCCSA - 1.0
- VCCIO - 1.10625
- CPU PLL Voltage - 1.9
- Disabled CPU spread spectrum
Everything ran absolutely fine, Prime95 stable for 3 hours without temps going above 60C.
Unfortunately, every time I try to boot, I get the little red DRAM_LED lighting up on me and no action on screen (fans are all running etc).
So I end up pressing MemOK! and having to reset the DRAM OC settings
Ive currently left the memory frequency on AUTO in the BIOS, however I'd much rather run it at 1600 than 1333.
Its probably also worth mentioning I often get several (multi-boots?) when I turn the rig on in the morning
(it turns on then off then on then off before booting properly) which can be annoying.
Sorry for the huge post, I just thought I'd provide as much info as possible! Any help would be greatly appreciated, thankyou!
Fradgers
