-
Competitor rules
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
***The Official Core i5 Overclocking Thread***
- Thread starter easyrider
- Start date
Soldato
- Joined
- 23 Jun 2004
- Posts
- 4,889
- Location
- Blackburn
whats cpu VTT volts are people using with their i5's ? Apparently intel states 1.21v as the absolute max for VTT but I see lots of people using 1.3v and above, anyone run into problems using this much vtt?
Well sad to say the i5 bundle is back failing again @4GHz, 20x200 and it failed after an hour.
Todays help from OC_UK increase the vcore again, I'm just going around in circles.
Another profile should have been sent and again not turned up, not that I expect it will do anything.
Todays help from OC_UK increase the vcore again, I'm just going around in circles.
Another profile should have been sent and again not turned up, not that I expect it will do anything.
Auto gives you 1,4V for clock as high as 4GHz. Its 1,1V on stock clock.
thats why I didnt recommend Auto ... i use 1,32V with no problems.
maybe i could drop it a little bit more but didnt check it yet as OC_uk leaves you with Auto and thats huge 1,4V so i dropped it to 1,32V and it turned up that it is still stable and i left it on 1,32V. maybe ill try to drop it again and find my minimum stable qpi/vtt for 4GHz
ive discovered that minimal Vcore i must provide to keep stable 4GHz is 1,3375V but i set 1,35V just to make sure
Last edited:
I'm using 21x195 to get 4.1Ghz, haven't tested it fully but seems stable. my Vcore is 1.376 in CPU-Z. I don't know what to set VTT so I set it slightly over the Intel max at 1.24v.
Does anyone know if an overclock can break the motherboard? I had my first Asus P7P55D at 3.8GHz with Turbo Boost (4.3Ghz) and Speedstep enabled, and the motherboard broke. Was it the overclock that did it or do you think the mobo was bad from the beggining?
Does anyone know if an overclock can break the motherboard? I had my first Asus P7P55D at 3.8GHz with Turbo Boost (4.3Ghz) and Speedstep enabled, and the motherboard broke. Was it the overclock that did it or do you think the mobo was bad from the beggining?
hmmm i dont think its your o/c
these mobos are created for oc and tweaking. if you didnt push too much volts into pch (p55 chipset) it should be perfectly ok with your OCed cpu. if it broke ... well that was probably bad luck 
did you try clear cmos on mobo and you are sure its dead ?
F2kSel after your post yesterday i decided to run test overnight to ensure my cpu is stable. It failed after 9,5h of IBT (i set 750 loops at high 
) so it is not rock stable for me and thats not acceptable.
OCuk replayed my message yesterday and i will be returning only my CPU i think. they recommend to return whole bundle but i dont think it will do any better when i see their approach. I will decide today what i want to do with it. but im disappointed anyway.
) so it is not rock stable for me and thats not acceptable.OCuk replayed my message yesterday and i will be returning only my CPU i think. they recommend to return whole bundle but i dont think it will do any better when i see their approach. I will decide today what i want to do with it. but im disappointed anyway.
Last edited:
F2kSel after your post yesterday i decided to run test overnight to ensure my cpu is stable. It failed after 9,5h of IBT (i set 750 loops at high
Tough Customer
I think you should apply for a position in OCUK's QC dept.
I tend to agree with the above...
I think we sometimes lose sight of the fact that a PC is for doing things with; not just for benchmarking and testing.
My i5 bundle is stable for 30 minutes with Prime. Given that I have not had a single crash in a week of normal usage, that's good enough for me (and because of that I haven't bothered testing further). If its stable enough to do what I want with it, then I am good with that as I'd rather be playing games than messing around in the bios.
No offense to str4nger, YMMV and your standards may be different to mine.
I think we sometimes lose sight of the fact that a PC is for doing things with; not just for benchmarking and testing.
My i5 bundle is stable for 30 minutes with Prime. Given that I have not had a single crash in a week of normal usage, that's good enough for me (and because of that I haven't bothered testing further). If its stable enough to do what I want with it, then I am good with that as I'd rather be playing games than messing around in the bios.
No offense to str4nger, YMMV and your standards may be different to mine.
Tough Customer
I think you should apply for a position in OCUK's QC dept.
LOL
that would be nice. but i think i dont have a chance with my english (spoken especially )anyway i would change the testing procedure for sure
i worked for a few years testing PC hardware in my country and that is my hobby too since i remember. anyway i couldnt live on my own with this job I had. in UK i dont have a chance for position like that but i can live on my own doing other things
oops ... sorry for off-topic
Last edited:
Khrest i agree if you are happy with that.
but realize that most games will not use 4 cores
they probably wont even 100% load 2 of them. when times will change and load of your cpu will rise because of more optimised, better software problems with stability may appear. and if you will be out of warranty you can only lower your clock and regret you didnt do anything when you could.
other thing is that if you buy bundle - you pay for it to be stable at 4GHz.
my bundle failed prime95 every time after 3-15min and that means it wasnt tested.
voltages as high as OCuk is setting are telling me that they probably setting up every bundle like that and check only for booting up. because they probably think that it will be ok if the voltages are high enough. other people have similar problems (and the same bios settings) so that only confirms my theory.
anyway i dont want to have any problem when i compile linux kernel and GCC can and will use all of the cores. Playing games is not the only thing i do on my pc i really use it not only for testing and benchamarking ... thats why i test overnight when sleeping
but realize that most games will not use 4 cores
they probably wont even 100% load 2 of them. when times will change and load of your cpu will rise because of more optimised, better software problems with stability may appear. and if you will be out of warranty you can only lower your clock and regret you didnt do anything when you could.
other thing is that if you buy bundle - you pay for it to be stable at 4GHz.
my bundle failed prime95 every time after 3-15min and that means it wasnt tested.
voltages as high as OCuk is setting are telling me that they probably setting up every bundle like that and check only for booting up. because they probably think that it will be ok if the voltages are high enough. other people have similar problems (and the same bios settings) so that only confirms my theory.
anyway i dont want to have any problem when i compile linux kernel and GCC can and will use all of the cores. Playing games is not the only thing i do on my pc
i really use it not only for testing and benchamarking ... thats why i test overnight when sleeping
Last edited:
I've managed to overclock the i5 to 3.6GHz with 1.3VCore, but I cannot get to 3.8GHz because prime says error when I do the test. I'm happy with 3.6 for the time being though.
Edit: I turned off Load Line Callibration and tried 4GHz with 1.4VCore and that seems to be stable! Around 70Degrees
Edit: I turned off Load Line Callibration and tried 4GHz with 1.4VCore and that seems to be stable! Around 70Degrees
Last edited:
I'm currently testing some new settings using prime95.
I haven't checked in the bios but some things I have noticed are:-
Core Voltage 1.392v CPU-z I think it was 1.36-1.37 previously.
20x191MHz
Currently 3.30hrs I'll leave it running overnight or until it fails.
Temps are 2C higher max 74C
I haven't checked in the bios but some things I have noticed are:-
Core Voltage 1.392v CPU-z I think it was 1.36-1.37 previously.
20x191MHz
Currently 3.30hrs I'll leave it running overnight or until it fails.
Temps are 2C higher max 74C
I will have a mess around with it in that form, but I still dont get the point of a turbo mode that is apparently 'on' all the time when playing games / rendering etc.