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Asus Maximus XI Extreme maximum VSA & VCCIO for 24h/7d use

Fraizer
Level 9
hello

With this motherboard Asus Maximus XI Extreme (chipset Z390) last bios 805

can you tell me if it is bad for the motherboard and the memory to have an VSA set to 1,4000 or 1.4500volts ? or to an maximum of 1.5000volts ? it stay safe for 24h/7d ?
i dont speak here about the dimm voltage who is on this 4x 8gb gskill 4600mhz memory at 1.45v. (but will oc to 1.50v).
is not to go to 4600mh but to be the more close possible like 4400 4500... but again for an 24h/7d.

same question about the VCCIO ?

an good oc friend told me it is without problem for VSA up to 1.500volts. i trust him on that but in case he miss an information part (is human... i miss personaly many things lol) like for exemple at VSA =1.4500 or 1.5000 is an special situation, or need a air cooling on memory or... etc...

just to be in peace in my head to not burn my motherboard or the memory lol
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16 REPLIES 16

howxcore
Level 10
Fraizer wrote:
hello

With this motherboard Asus Maximus XI Extreme (chipset Z390) last bios 805

can you tell me if it is bad for the motherboard and the memory to have an VSA set to 1,4000 or 1.4500volts ? or to an maximum of 1.5000volts ? it stay safe for 24h/7d ?
i dont speak here about the dimm voltage who is on this 4x 8gb gskill 4600mhz memory at 1.45v. (but will oc to 1.50v).
is not to go to 4600mh but to be the more close possible like 4400 4500... but again for an 24h/7d.

same question about the VCCIO ?

an good oc friend told me it is without problem for VSA up to 1.500volts. i trust him on that but in case he miss an information part (is human... i miss personaly many things lol) like for exemple at VSA =1.4500 or 1.5000 is an special situation, or need a air cooling on memory or... etc...

just to be in peace in my head to not burn my motherboard or the memory lol


multiple threads in this forum have stated that, a 1.4 voltage or higher on both vccio and SA are too high (auto) , i've tried this myself and lowered it to 1.25 for vccio and 1.30 for SA and ive been good so far with my rig. If your memory is at 4600mhz though , that is pretty high... so actually , 1.4v might be good for you and you should be safe.

howxcore
Level 10
Fraizer wrote:
hello

With this motherboard Asus Maximus XI Extreme (chipset Z390) last bios 805

can you tell me if it is bad for the motherboard and the memory to have an VSA set to 1,4000 or 1.4500volts ? or to an maximum of 1.5000volts ? it stay safe for 24h/7d ?
i dont speak here about the dimm voltage who is on this 4x 8gb gskill 4600mhz memory at 1.45v. (but will oc to 1.50v).
is not to go to 4600mh but to be the more close possible like 4400 4500... but again for an 24h/7d.

same question about the VCCIO ?

an good oc friend told me it is without problem for VSA up to 1.500volts. i trust him on that but in case he miss an information part (is human... i miss personaly many things lol) like for exemple at VSA =1.4500 or 1.5000 is an special situation, or need a air cooling on memory or... etc...

just to be in peace in my head to not burn my motherboard or the memory lol


check this out for reference.

howxcore wrote:
check this out for reference.



thank you man yes i saw that too ^^

then i understand is totaly safe to be at VSA 1.500volts ?

it will not make hoter my cpu ? i am actualy oc at 5.3ghz @1.315v with direct die. if yes any idea how much it will raise the temperature ? like 2°c ? and sorry to ask again is totaly safe ?

regarding the VCCIO i can go up to how much ? do it need an specail cooling etc ? 🙂

Fraizer wrote:
thank you man yes i saw that too ^^

then i understand is totaly safe to be at VSA 1.500volts ?

it will not make hoter my cpu ? i am actualy oc at 5.3ghz @1.315v with direct die. if yes any idea how much it will raise the temperature ? like 2°c ? and sorry to ask again is totaly safe ?

regarding the VCCIO i can go up to how much ? do it need an specail cooling etc ? 🙂


if you are stable, than you should be fine.. you should try to find the lowest stable voltage for all components to minimize heat as rule of thumb. As long as special cooling is concerned.. you should be sufficient if you are pushing 5.3ghz on your cpu I'm assuming you are on a water based cooling solution.

Fraizer wrote:
then i understand is totaly safe to be at VSA 1.500volts ?


No, it's not. You will degrade your cpu over time.
The table above shows 1.30-1.35 and those are already on the high side for daily use.

Silent_Scone
Super Moderator
Fraizer wrote:
hello

With this motherboard Asus Maximus XI Extreme (chipset Z390) last bios 805

can you tell me if it is bad for the motherboard and the memory to have an VSA set to 1,4000 or 1.4500volts ? or to an maximum of 1.5000volts ? it stay safe for 24h/7d ?
i dont speak here about the dimm voltage who is on this 4x 8gb gskill 4600mhz memory at 1.45v. (but will oc to 1.50v).
is not to go to 4600mh but to be the more close possible like 4400 4500... but again for an 24h/7d.

same question about the VCCIO ?

an good oc friend told me it is without problem for VSA up to 1.500volts. i trust him on that but in case he miss an information part (is human... i miss personaly many things lol) like for exemple at VSA =1.4500 or 1.5000 is an special situation, or need a air cooling on memory or... etc...

just to be in peace in my head to not burn my motherboard or the memory lol



It’s worth mentioning that the Extreme is validated as a maximum of 4400 (with 4 modules). It’s always advisable to aim for a notch or two below the highest validation. 4400-4600 ideally requires a two DIMM layout as found on the Gene and Apex line as well as a strong IMC. If needing more than 1.4v on IO/SA then it’s best to settle for a frequency that the CPU is more comfortable with.
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

Silent Scone@ASUS wrote:
It’s worth mentioning that the Extreme is validated as a maximum of 4400 (with 4 modules). It’s always advisable to aim for a notch or two below the highest validation. 4400-4600 ideally requires a two DIMM layout as found on the Gene and Apex line as well as a strong IMC. If needing more than 1.4v on IO/SA then it’s best to settle for a frequency that the CPU is more comfortable with.


@Silent Scone

iwhen you said : "If needing more than 1.4v on IO/SA then it’s best to settle for a frequency that the CPU is more comfortable with" it mean to reduce the freq of the cpu or the ddrm ?

if it nee to rise up only the SA is the same answer ?

Fraizer wrote:
@Silent Scone

iwhen you said : "If needing more than 1.4v on IO/SA then it’s best to settle for a frequency that the CPU is more comfortable with" it mean to reduce the freq of the cpu or the ddrm ?

if it nee to rise up only the SA is the same answer ?

Settle for less memory frequency so that the SA/IO voltages will be lower thus not putting more stress than need be on the IMC.
Asus ROG Maximus XI EXTREME
Intel i7 9900K OC'D @ 5.2 GHZ @ 1.345V (1.296V LOAD) LLC 6 PRIME 95 STABLE 8 HRS
XSPC RX360 Rad (6)Scythe Gentle Typhoon 1850 RPM Fans In Push/Pull @ 1500 RPMS
Swiftech Drive II / Swiftech MCP35X Pump
Enermax Platimax 1200 Watt Power Supply
32GB G.Skill F4-3866C18Q-32GTZR 3866 MHZ CL18 1.35V (OC 4266MHZ 17-18-18-41-2T @1.45V)
MSI GTX 1070 SEA HAWK EK X SLI WITH ASUS HB RGB
(5)Samsung 840 Pro 128 GB In Raid 0
(2) WD 1TB Black Edition
Corsair 900 D

I would settle for whatever speeds can be achieved with IO/SA at 1.4v or lower. I would never recommend 1.5v for 24/7.