- Dec 21, 2014
- 117
- 0
- 4,710
Hello all!
I'm trying to overclock my RAM here, more for the experience/fun than to get any real gains.
I tightened my timings a bit with stock voltage, was able to lower by 1 across the board.
However I have since returned to stock timings and wanted to try to jump from 2133 Mhz to 2200, perhaps even 2400. To increase my chances I was going to go ahead and make the jump to 1.65 v, then lower it until I reached instability(assuming I was stable at all)
However when I went into BIOS and changed my DRAM voltage to 1.65 I failed to boot. My MOBO started beeping rapidly and I quickly hit the reset button. When it re-booted it came to a boot failed menu and I loaded defaults(then proceeded to re-load my previous settings from a flash drive, at least I thought ahead
)
So, what happened? I was fairly certain 1.65 was acceptable for Haswell?
I've read the VTT needs to be within .5v of DRAM, however I cannot find VTT in my BIOS. I find a system agent voltage offset, which is described as the voltage to the IMC.
(Currently set to auto, but listed as +0.000)
HWMonitor reads VTT as nearly 1.8v, but I'm pretty sure that's incorrect....
I do have XMP enabled, is that conflicting somehow with manual setting things? It didn't have an issue when I changed the timings.
System Specs:
Processor: Intel i7 4790K (Overclocked: 4.8 Ghz @1.265 Vcore, 4.4 Ghz Uncore @1.05 Vring)
Core temps during Prime95:
76-79-77-69
Motherboard: Gigabyte Z97X-UD5H-BK
Cooling: LEPA AquaChanger 240
Memory: G.Skill Ares Series 16GB (2 x 8GB) DDR3-2133
Video Card(s): EVGA GTX 980 Superclocked ACX 2.0
Case: Cooler Master HAF X ATX Full Tower
Power Supply: EVGA 850W ATX12V / EPS12V
I'm trying to overclock my RAM here, more for the experience/fun than to get any real gains.
I tightened my timings a bit with stock voltage, was able to lower by 1 across the board.
However I have since returned to stock timings and wanted to try to jump from 2133 Mhz to 2200, perhaps even 2400. To increase my chances I was going to go ahead and make the jump to 1.65 v, then lower it until I reached instability(assuming I was stable at all)
However when I went into BIOS and changed my DRAM voltage to 1.65 I failed to boot. My MOBO started beeping rapidly and I quickly hit the reset button. When it re-booted it came to a boot failed menu and I loaded defaults(then proceeded to re-load my previous settings from a flash drive, at least I thought ahead
)So, what happened? I was fairly certain 1.65 was acceptable for Haswell?
I've read the VTT needs to be within .5v of DRAM, however I cannot find VTT in my BIOS. I find a system agent voltage offset, which is described as the voltage to the IMC.
(Currently set to auto, but listed as +0.000)
HWMonitor reads VTT as nearly 1.8v, but I'm pretty sure that's incorrect....
I do have XMP enabled, is that conflicting somehow with manual setting things? It didn't have an issue when I changed the timings.
System Specs:
Processor: Intel i7 4790K (Overclocked: 4.8 Ghz @1.265 Vcore, 4.4 Ghz Uncore @1.05 Vring)
Core temps during Prime95:
76-79-77-69
Motherboard: Gigabyte Z97X-UD5H-BK
Cooling: LEPA AquaChanger 240
Memory: G.Skill Ares Series 16GB (2 x 8GB) DDR3-2133
Video Card(s): EVGA GTX 980 Superclocked ACX 2.0
Case: Cooler Master HAF X ATX Full Tower
Power Supply: EVGA 850W ATX12V / EPS12V
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