6800k - Fist time overclocker
6800k - Fist time overclocker
In my understanding, XMP isn't required. You should have a multiplier and adjust the BLK to match 4.2 ghz based on whatever multiplier you use. It seems confusing about linking CPU multiplier with RAM—probably you should focus on adjusting RAM settings instead. Also, yes, 4.2 ghz at 60 degrees is fine; my old i7 870 worked at 3.6 ghz and handled 70 degrees well, so the temperature isn't a problem. Now you mentioned issues with your keyboard and mouse not working—try the suggested steps.
SpencerGoshorn was explaining his setup and concerns about overclocking. He mentioned not needing XMP, using a multiplier, and adjusting the BLK to 4.2 ghz. He shared his experience with an I7 870 running at 3.6 ghz under 70 degrees Celsius, noting it was manageable. He also discussed issues with his keyboard and mouse not working, suggesting a BIOS reset via the provided link. He was testing a stress test in AIDA64 at 4.2Ghz with 1.3V, aiming for a balance between CPU and RAM speeds. He clarified that XMP involves matching CPU and RAM clock ratios for successful overclocking, though he was unsure about the exact process. He also noted his RAM speed was lower than stock due to BIOS settings or motherboard limitations.
Scottishrequiem :
SpencerGoshorn :
From what I understand, you likely don’t need XMP enabled. You should have a multiplier set and adjust the BLK to match 4.2 ghz depending on your multiplier choice. It seems confusing to equate the CPU multiplier with RAM adjustments—you really should focus on the RAM itself. Also, yes, 4.2 ghz at 60 degrees is acceptable. My old i7 870 handled it at 3.6 ghz and even at 70 degrees, which isn’t too bad.
You mentioned you can’t access anything because your keyboard and mouse aren’t working. Try this: http://www.wikihow.com/Reset-Your-BIOS. Attempt "METHOD 2" or "METHOD 3" to reset any changes made to your CPU and restore defaults. See if your keyboard functions afterward.
I’ll check later. Right now I’m running a 4-6 hour stress test in AIDA64 using [email protected]. I might experiment with this later—possibly aiming for 4.3 at 1.3V or lower voltage to stay at 4.2.
Currently, my RAM runs at 2133Mhz (stock) due to the motherboard or CPU, not 2666Mhz as stock suggests. I’m trying to overclock the CPU while keeping RAM at its original speed. I assumed this was handled via XMP, but I’m not sure.
My intention is to overclock the CPU and match it with a RAM that supports it. I’m still evaluating whether a 4.2Ghz boost is viable under load.
UPDATE: Aida64 stress test at 4.2Ghz @ 1.3V – average around 57c, power use about 68-70W. Not sure if that’s impressive.
I didn’t send the REST BIOS link because your keyboard and mouse aren’t responding. Just don’t proceed with the BIOS reset unless you’re certain.
SpencerGoshorn continued discussing his overclocking experience, clarifying that XMP activation isn't necessary and suggesting a multiplier adjustment of 4.2 GHz with a RAM speed of 4.2 GHz. He mentioned using a cooler environment, noting his previous I7-870 ran smoothly at 3.6 GHz under similar conditions. He emphasized the importance of matching CPU and RAM speeds for successful overclocking, referencing online guides. He also shared that his current RAM runs at 2133 MHz due to BIOS settings, not XMP, and expressed uncertainty about achieving better performance with a higher voltage or different RAM. He planned a stress test in AIDA64 and noted the expected temperature and power usage.
I've successfully enabled XMP, which brings my RAM up to stock speeds plus a steady 4.2ghz overclock. I'm planning to aim for 4.3 or 4.4 and check how much further I can push it. My goal is to cap the voltage at 1.35v, keeping the load under 60% to ensure stability and longevity.
Well, the system started with version 4.3 at 1.3, but during the stress test it crashed with a BSOD, then went back to 1.325v when tested. I considered trying 1.35v for version 4.3 and wondered if it would be worth it.
1.35v @ 4.2 is a bit much.....shouldn't need that much. If you're seeing instability on 4.2 at less than 1.3v, it's likely due to input voltage being a tad too low, or the System Agent voltage not hitting the sweet spot.
There's a ton of good information in this thread, and a lot of really good people that can help to answer questions. Most of the ASUS X99 bios settings are exactly alike, so it's easy to adapt and learn with what you see here.
http://www.overclock.net/t/1601679/broadwell-e-thread
Vellinious :
1.35v @ 4.2 is a bit much.....shouldn't need that much. If you're seeing instability on 4.2 at less than 1.3v, it's likely due to input voltage being a tad too low, or the System Agent voltage not hitting the sweet spot.
There's a ton of good information in this thread, and a lot of really good people that can help to answer questions. Most of the ASUS X99 bios settings are exactly alike, so it's easy to adapt and learn with what you see here.
http://www.overclock.net/t/1601679/broadwell-e-thread
My system is curently very stable with XMP enabled and 4.2Ghz @ 1.3v I could potentially try lowering the voltage to see how much lower I can go but I don't have the time just yet.
I'll check it out