HardwareProcessorsIntel clarifies what BIOS settings 13th/14th Gen CPUs should be used for power and currentWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
HardwareProcessorsIntel clarifies what BIOS settings 13th/14th Gen CPUs should be used for power and currentWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
(Image credit: Future)
In response to the recent news that amicrocode bug had been discoveredaffecting how some of its CPUs boost clock speeds, Intel has posted an update on the matter via its Community forum. While there are no fresh details about the instability issue, the post clarifies what BIOS settings should be used for the unlocked K-variants of 13th and 14th Gen Core i5, i7, and i9 processors.
All this began earlier in the year, when various reports came to light from Core i9 13900K and 14900K owners who were running intostability issues in games that used Unreal Engine. One team at Epic, the developers of UE, pointed the finger of blame directly at Intel for this, who in turn thenredirected the blame at motherboard vendorsusing non-default power and current settings in the BIOS.
Over time, it became clear that it wasn’t just Raptor Lake Core i9 chips that were struggling and it wasn’t just in UE-powered games—Core i7 users were also reporting issues and developers working with software that stressed the processors were experiencing stability issues, too.
The first step in resolving the problem came in the form of anIntel Baseline Profile, an update to the motherboard BIOS that, when enabled, would force the system to use the standard power and current limits and protections. However, not every board vendor applied it in the same way and some still used Intel’s ‘performance’ settings in the profile, rather than the ‘standard’ ones.
Thus,Intel has issued guidanceon precisely what the motherboard BIOS should have, for the CPU to run within expected limits.
(Image credit: Intel Corporation)
Strictly speaking, none of this is new information, as it’s always been present inIntel’s datasheets for its chips. However, given that they’re dense, technical reads, even PC enthusiasts are unlikely to glean the exact details required from them and as such, have to rely on motherboard manufacturers to set things up correctly.
It’s worth noting that the power limits of Intel’s CPUs significantly impact the maximum clock speed they can reach, especially when handling lots of threads at the same time. For example, theCore i7 14700Khas eight P-cores that run at 3.4 GHz as a minimum but can reach up to 5.6 GHz in specific circumstances.
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That peak clock can only be reached if the CPU isn’t bouncing off its temperature, power, and current limits. And since so much of Raptor Lake’s performance comes from its high clocks, using a lower power limit, for example, will make it less likely you’ll see the P-cores run at 5.6 GHz.
Your next machine(Image credit: Future)Best gaming PC: The top pre-built machines.Best gaming laptop: Great devices for mobile gaming.
Your next machine
(Image credit: Future)Best gaming PC: The top pre-built machines.Best gaming laptop: Great devices for mobile gaming.
(Image credit: Future)
Best gaming PC: The top pre-built machines.Best gaming laptop: Great devices for mobile gaming.
I’ve scanned through a variety of motherboard listings, from all of the major vendors, and none of them specifically state that their models officially support the ‘Performance Power Delivery Profile (PPDP).’
Hopefully, this will change in the near future, and you’ll be able to check exactly what settings you can run with on your system. However, I suspect that few vendors will be willing to state that their expensive motherboardsdon’tsupport Intel’s PPDP.
It would help matters if Intel leaned on its board partners to be more transparent about the true capabilities of their motherboards.
It may turn out that there is no general fix for every case of instability with Intel’s latest and greatest Core processors, but if you follow Intel’s guidelines and set your motherboard BIOS to use the standard values, you will certainly enjoy a cooler, quieter, and more stable PC. It will also be slower, of course, but if stability is important to you then it’s a necessary sacrifice.
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