8700k Hero isn't achieving a stable OC.
8700k Hero isn't achieving a stable OC.
Hi,
I've been having trouble keeping my new 8700k and Maximus Hero X board stable after overclocking. It keeps crashing even when I set it to 5Ghz at 1.35v (to check voltage), with LLC at lv 6 and maximum long/short power limits. Previously, at 4.9Ghz and 1.285v, it also crashed occasionally. I can play games and run stress tests but it still fails. I’m not very familiar with the BIOS since I used a different setup from MSI, where I only adjusted voltage and frequency. My system is watercooled, PSU is solid (750W G2), drives and case are updated, and I don’t want to risk damaging the chip. Should I consider adding an AVX offset? Stability seems more important than temperature concerns, but I’m unsure if cache OC matters. Any advice would be appreciated.
Toxic_Cobra :
I aimed to discover if anyone shares my board and has noticed any settings that might lead to instability. I might have misused my 8700k, not using the warranty on my previous chip. My goal is to locate a local delidder instead of spending $50 on parts just to replace one chip.
I consulted his guide to check if there were specific adjustments needed for the Maximus Xs BIOS settings. Eventually, I chose to skip the manual steps and return to my old methods, which turned out to work with the 6-core CPU. Just to be clear, you're running 3466 memory; if you have an XMP profile, you can improve performance by manually setting your DDR4...
The maximum overclocking potential for the I7-8700K largely depends on finding a suitable chip. My advice is to lower the multiplier for stability. Alternatively, aim for performance closer to 1.4v.
As of 12/01/2017:
- Approximately 99% of chips can reach an aggressive vcore near 1.4 with delidded 4.9 GHz
- 72% at 5.0 GHz
- 43% at 5.1 GHz
- 16% at 5.2 GHz
- 3% at 5.3 GHz
Toxic_Cobra :
I'm experiencing crashes while trying to overclock my new board. I've been at 5Ghz with 1.35v, LLC at lv 6, and max power limits set. Previously, I was at 4.9Ghz and 1.285v but still faced instability. I can play games and stress test, yet it always crashes. I'm unsure about the BIOS settings since I'm used to adjusting voltage and frequency on other systems. My rig is watercooled, and I've updated everything except the PSU (750w G2), drives, and case. I want to avoid damaging this chip if it keeps crashing. Should I consider adding an AVX offset? Stability seems more important than temperature concerns here. I haven't changed cache OC either, not sure its impact.
What changes should I make?
I'm hoping 5Ghz will help, but I need more guidance.
Thanks
4Ryan6 :
Toxic_Cobra :
Hello,
I've been attempting to push my new 8700k and Maximus Hero X board to higher speeds but it frequently crashes. Currently, I'm running at 5Ghz with 1.35v (to eliminate voltage concerns), LLC set to lv 6, and maximum long/short power limits at their highest settings. Previously, I had it at 4.9Ghz and 1.285v, yet both units still crash occasionally. I can play games and run stress tests, but the crashes are unavoidable. What adjustments would you recommend? I'm not very familiar with the BIOS since my previous experience was with an MSI board where I only changed voltage and frequency. My entire system is watercooled, and I've updated everything except the power supply (750w g2 PSU), drives, and case. I'm worried about damaging this chip if it remains unstable. Should I consider adding an AVX offset? Since I'm watercooled, temperature shouldn't be a major issue, but stability is crucial. Have you modified the cache OC settings before?
Thanks
If your idle temps are 40c, it seems your cooler might be the issue.
Idle should rise by 10-15c above ambient.
Verify your pump is functioning and that you haven’t used excessive paste.
Ensure all radiators receive enough fresh air to operate effectively.
Every cooler requires a steady flow of fresh air to perform properly.
Consider removing the case covers and using a fan inside for better cooling.
If you plan to install the 8700K delidded, have it done by professionals.
Silicon lottery offers this service for $45.
You can also get your chip binned here: https://siliconlottery.com/collections/a...7320026444
If your idle temps are at 40c, it seems there might be an issue with your cooler. Idle should be between 10-15c above ambient. Make sure your pump is functioning properly and that you haven’t used too much paste. Verify that all radiators are receiving enough fresh air. Every cooler requires a steady supply of fresh air to operate effectively. Consider removing the case covers and using a fan inside to improve cooling. If you plan to install the 8700K delidded, have it done by professionals.
Silicon lottery offers this service for $45. You can also get your chip binned here: https://siliconlottery.com/collections/a...7320026444
I was surprised to find I had a stable overclock! I adjusted it to 4.9 @ 1.29 and ran some tests. This was done with my fans at default settings in my enthoo luxe, with all case panels removed. After that, I ran cinebench and started prime95. While it was running, I typed a reply but it crashed. I increased it to 1.295. Any other settings worth adjusting? This exact OC crashed before. It might be the high temperatures caused by a faulty pump—hopefully EK will issue an advanced replacement RMA and a new pump will fix it.
I was planning to send it to siliconlottery, but I don’t want to be without a system for a week! It seems like a straightforward process, just find someone with the right tools.
Toxic_Cobra :
I aimed to discover if anyone shares my board and has noticed any settings that might lead to instability. I considered risking my 8700k without using the warranty on my previous chip. My goal is to locate a local delidder, as spending $50 on parts just for one chip would be wasteful.
I consulted his guide to identify necessary adjustments for accessing the Maximus Xs BIOS settings quickly. Eventually, I chose to skip the manual steps and revert to my old methods, which proved effective with the 6-core CPU.
Specifically, if you're running 3466 memory, using an XMP profile allows you to run cooler by manually setting your DDR4 memory to 2666mhz—matching the original specs of the 8700K. You can try timings like 15, 15, 15, 35 at 1.2v DDR4 slot voltage, which should reduce temperatures by at least a degree across all cores and lessen CPU stress by avoiding overclocking the memory controller.
For more details, check his forum post about effect-raised multipliers and CPU overclocking.
I tried to find someone with a similar board who might know about settings that could cause instability. I considered delidding my 8700k, but I didn’t use the warranty on my old chip. I’m looking for a local person who can help me avoid spending $50 just to replace one chip. I checked his guide to see if there were any adjustments needed for the Maximus Xs BIOS settings. Eventually, I decided to skip the instructions and go back to my usual methods to confirm they work with the 6 core CPU. In short, I’m using 3466 memory, and if you’re using an XMP profile, you can run cooler by manually setting your DDR4 to 2666mhz, matching the original specs of the 8700K. You can try timings like 15, 15, 15, 35 at 1.2v for the DDR4 slot voltage. This should lower temperatures by at least a degree across all cores and reduce stress on the CPU by avoiding overclocking the memory controller. [Link]( That article really helped bring down the temps significantly, reaching the mid 20s. If I delide it, will it still affect those low minimum temperatures? Could I run a memory overclock while maintaining those low temps? I was expecting a BSOD with GTA V at 4.9 GHz @ 1.295v. Should I try adaptive voltage? Where should I start adjusting the + or - values? Also, when I set an AVX offset, my clock speed doesn’t return to 4.9 GHz—should I set it to 0?