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Safe Overclock for a 5820k?

Safe Overclock for a 5820k?

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Nessa106
Member
169
01-26-2026, 05:50 PM
#11
1LiquidPC :
Thanks for the info. I'm seen mention of this as well. The newer batches do seem to OC better. I have my cache at 4Ghz as well. I did consider the i7 6800k Broadwell-E, but after reading the reviews it looks like it could end up at a lower OC than where I'm at now based on averages. Even with the higher IPC, I don't think it would really be worth it to me unless I got at least the same frequency.
I think you made the right call. Broadwell-E was mildly disappointing. The 6950X is kind of impressive, but overpriced. A pair of Xeon E5-2630V3's would crush it for the same or less money.
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Nessa106
01-26-2026, 05:50 PM #11

1LiquidPC :
Thanks for the info. I'm seen mention of this as well. The newer batches do seem to OC better. I have my cache at 4Ghz as well. I did consider the i7 6800k Broadwell-E, but after reading the reviews it looks like it could end up at a lower OC than where I'm at now based on averages. Even with the higher IPC, I don't think it would really be worth it to me unless I got at least the same frequency.
I think you made the right call. Broadwell-E was mildly disappointing. The 6950X is kind of impressive, but overpriced. A pair of Xeon E5-2630V3's would crush it for the same or less money.

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meowpurr66
Member
55
01-26-2026, 11:30 PM
#12
I tested my i7 5820k at 4.4k Ghz with 1.265 V and wanted to know if it's a secure overclock or if I need to adjust further. The setup includes an Intel i7 5820k, Asus x99 Sabertooth, Corsair H100i GTX AIO cooler, Corsair vengence LPX RAM 16 GB 4x4 at 2667, EVGA GTX 970 SLI, and Corsair RM 850i. It works fine now at 4.4 GHz and 1.285 V, but I'm still checking stability after other tests. Your experience is valuable!
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meowpurr66
01-26-2026, 11:30 PM #12

I tested my i7 5820k at 4.4k Ghz with 1.265 V and wanted to know if it's a secure overclock or if I need to adjust further. The setup includes an Intel i7 5820k, Asus x99 Sabertooth, Corsair H100i GTX AIO cooler, Corsair vengence LPX RAM 16 GB 4x4 at 2667, EVGA GTX 970 SLI, and Corsair RM 850i. It works fine now at 4.4 GHz and 1.285 V, but I'm still checking stability after other tests. Your experience is valuable!

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iGozaay
Member
186
01-28-2026, 08:13 AM
#13
Should be fine. I've been running mine @4.4Ghz at 1.325v since about October '14. You'll see 1.3v is commonly recommended max, but this number is not set in stone. It's not like 1.3v is totally safe, and 1.31 is bad. Any voltage above stock can lower CPU lifespan, so the risk is going to be there when OCing. However, the higher the voltage and temps, the higher the risks. Comes with the territory. Still, I'd prefer 1.285 if I were you. Maybe not the best out there, but a good amount less voltage than I need.
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iGozaay
01-28-2026, 08:13 AM #13

Should be fine. I've been running mine @4.4Ghz at 1.325v since about October '14. You'll see 1.3v is commonly recommended max, but this number is not set in stone. It's not like 1.3v is totally safe, and 1.31 is bad. Any voltage above stock can lower CPU lifespan, so the risk is going to be there when OCing. However, the higher the voltage and temps, the higher the risks. Comes with the territory. Still, I'd prefer 1.285 if I were you. Maybe not the best out there, but a good amount less voltage than I need.

V
vdpRC
Member
60
01-28-2026, 05:46 PM
#14
I got my i7 5820k up to 4.4k Ghz at 1.265 V, is this a secure overclock for my CPU? Or should I bring the settings back down?
Specs:
Intel i7 5820k
Asus x99 Sabertooth
Corsair H100i GTX AIO cooler
Corsair vengence LPX RAM 16 GB 4x4 at 2667
EVGA GTX 970 SLI
Corsair RM 850i
That's ideal, I’d keep it as is.
Update: Recently this overclock became unstable after other tests. Now it’s stable at 4.4 GHz at 1.285 V :/ ...Do you think it’s safe? You clearly have a lot of experience with these.
An extra 20mV isn’t a big issue. Enjoy it
V
vdpRC
01-28-2026, 05:46 PM #14

I got my i7 5820k up to 4.4k Ghz at 1.265 V, is this a secure overclock for my CPU? Or should I bring the settings back down?
Specs:
Intel i7 5820k
Asus x99 Sabertooth
Corsair H100i GTX AIO cooler
Corsair vengence LPX RAM 16 GB 4x4 at 2667
EVGA GTX 970 SLI
Corsair RM 850i
That's ideal, I’d keep it as is.
Update: Recently this overclock became unstable after other tests. Now it’s stable at 4.4 GHz at 1.285 V :/ ...Do you think it’s safe? You clearly have a lot of experience with these.
An extra 20mV isn’t a big issue. Enjoy it

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