I5 3570k Bus Speed

[jarlsuki]

Hello

I've been messing around with my CPU trying to find an OC that i like.
I ended up with 4.223ghz, Core Voltage 1.200.
After doing Prime95 for 16hours without fail i figured i'd keep my settings, but i noticed my Bus Speed is at 103mhz.
I read that changing this is -Bad-, but how fragile is it? Is there a chance this minor increase could hurt my CPU?

Any input is welcome : )

 

[NightHawk87]

o.o not good that the Base Clocked got changed try Reset your Bios & I have a I5 3570k at 4.2ghz at Auto Voltage you can do the same without touching the Cpu Vcore!!! You can Go higher but need Water Cooling

 

[jarlsuki]

Got spooked after reading some more about the Bus Speed so i decided to start over.
Managed to end up at 4.2ghz again with Bus Speed on 100mhz and manual voltage at 1.200
I haven't tested it with Prime95 yet but i'll let the comp do that tonight and while im at work so it should end up with 16-17 hours. Hopefully it will pass the test : )
As for cooling im using Cooler Master 412S (more or less a 212Evo) but if i pass then i'll keep it this way. Im not to keen on pushing it further.
Thanks alot for your reply dude

 

[NightHawk87]

Ya Bus Speed you dont wanna Mess around with & that good you started over Fresh again & did you put it at 4.2ghz on the Clock Ratio or Turbo Boost?? & is the Cpu Vcore on Auto or Manual? You wanna watch your voltage when its stressing your see how high it goes up & down on core voltage on Cpu-z

Cooler Master 412s should be a good Air Cooling heatsink wanna make sure your temp dont go over 90c & Cpu Vcore make sure not to go over 1.300v you go prob go like 4.4ghz or 4.5ghz around 1.290v or less if you want too!! gotta find it Stable & stuff!!!

Hope everything works out for you man

 

[Orlean]

I've had my motherboard do the same thing when setting XMP in the bios settings the bus speed changed to 103 I had to reboot and change it.

I see no mention of the temps you are getting at load. You should be able to run allot less voltage for that clock speed. I'm running 4.2ghz @ load voltage tops out at 1.096 using a 212 Evo cooler getting Prime temps of 62c.

 

[DarkSable]

o.o not good that the Base Clocked got changed try Reset your Bios & I have a I5 3570k at 4.2ghz at Auto Voltage you can do the same without touching the Cpu Vcore!!! You can Go higher but need Water Cooling

Uhm, you do realize that "Auto Voltage" just changes the vcore for you, right?

And you don't need anywhere close to watercooling to go higher than that - I'm at 4.4GHz with 1.18v on a $20 air cooler.

 

[NightHawk87]

Uhm, you do realize that "Auto Voltage" just changes the vcore for you, right?

And you don't need anywhere close to watercooling to go higher than that - I'm at 4.4GHz with 1.18v on a $20 air cooler.

lol ya I know it changes the voltage when its on auto & how in the world you get 4.4ghz at 1.18v?? I cant even get 4.4ghz or 4.5ghz over 1.250v up to 1.3v smdh!!! did you leave it on auto or what did you do??

 

[DarkSable]

Of course I didn't leave it on auto - I did a proper overclock, and got a good chip.

I actually was pushing 4.7 GHz at higher voltages, but went with 4.4, just because I don't need more than that.

EDIT: I also have a good motherboard that's well designed for overclocking - the Gigabyte Z77X-UD3H.

 

[NightHawk87]

ya well how can I get at 4.5ghz or 4.4ghz?? I have a Gigabyte G1 Sniper M3 mobo they said its really good board for overclocking!! what was your voltage for 4.4ghz?? & I'm in need of Help wanting to overclock more then 4.2ghz

 

[DarkSable]

I'd personally start a new thread in the overclocking forum - best not to take over a thread.

That being said, the way to get numbers that high is to control it yourself, not let the board do it for you.

 

[jarlsuki]

No worries about taking over the thread, always interested in finding better OC solutions : )
Sorry about not posting temps btw. During the 17hour prime95 test with voltage 1.200 and Bus Speed at 103mhz and CPU at 4.223ghz it didn't go past 68C. So far during the test (been 9 hours) with voltage 1.200 and bus speed at 100mhz and CPU at 4.200ghz the temps didn't go past 63C (granted, the livingroom was a bit colder last night)
The voltage was Manual on both the tests.

Let me just post my speccs aswell:
i5-3570k @ 4.2ghz (atm)
Asus P8Z77-V Pro Mobo
MSI GTX660Ti Power Edition (currently not overclocked)
8gb Corsair Vengance 1600mhz
Kingston HyperX 3K 120gb SSD
1000w powersupply (Mist, think it's only sold in Norway, not sure)
Cooler Master 412S CPU Cooler with 120mm fan in Push "mode"
Cooler Master Haf XM Midi-tower (4x 200mm + 2x 140mm fans)

Im happy with my 4.2ghz though. Don't think im going to push it until i upgrade the rest of the system and the CPU ends up bottlenecking it.
And thanks for the warnings about Bus Speed, doubt i'll ever touch it again : )

 

[NightHawk87]

Sweet deal man everything looks good & your Temp are Awesome!!! you're good to go unless you wanna oc some more lol but seems like you're good at where you're ) have you tried playing any Games yet?? If it Crashes its not Stable your Overclock!!

 

[NightHawk87]

& Welcome bout the Bus Speed thing always make sure its stays at 100!! really never wanna mess with it

 

[jarlsuki]

I tried playing Borderlands 2 (but then i had an OC on both the CPU and GPU) and it crashed. It worked just fine when i played with just the GPU or just the CPU OC.
For now i'll keep the CPU OC and leave the GPU alone. I'll keep trying with that later sometime.
If my prime95 test checks out after i get home from work (~17hours after the test started) then i'll try Borderlands 2 and Skyrim to test it with games/everyday use.

 

[NightHawk87]

oh ya that sucks hmm it prob was the Gpu Oc I never messed around with Gpu yet!! but ya if it passes the test & everything on Prime95 & you are able to play most of the Games then you're good to go If your Game Crashes or Windows or You get Errors then you're not Stable on the Oc

 

[footlong96]

altering bus speed isnt necessarily for your cpu. If you found it stable after that long then you were good where your at. And dont use prime95. Use intel burn test. Way better for testing stabiility and it takes like 3 minutes max. Im pretty sure some of you guys are gonna find out your chips arent really as stable as you might think with that vcore.


And Also, I thought we resolved your question on a different thread, NightHawk.

 

[jarlsuki]

I haven't tried the intel burn test yet, but i can give it a go once i get home.
Thanks for the tip