help me to reach 4.8Ghz (Asus P8Z68-V Pro/Gen3 + 2600k) with low vcore - Overclock.net

Forum Jump: 
 
Thread Tools
post #1 of 7 Old 12-15-2011, 11:38 AM - Thread Starter
 
visata's Avatar
 
Join Date: Nov 2011
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 3
I recently assembled my new PC based on overclock.net user preferences, so I bought Asus P8Z68-V Pro/Gen3 + i7 2600k + H100 (p/p) + Haf X + HX750.

I'd like to overclock my system to 4.8Ghz with low vcore value. I followed the guide below and managed to keep my system stable at 4.8Ghz only with 1.425V.
http://hardforum.com/showthread.php?t=1578110


Are there any members with similar config, overclocked their CPU to 4.8Ghz and could provide their BIOS settings?

Thanks in advance
breenemeister likes this.

visata is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 12-15-2011, 11:55 AM
3.0ghz
 
breenemeister's Avatar
 
Join Date: Aug 2010
Location: Virginia
Posts: 1,189
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 56
Quote:
Originally Posted by visata View Post

I recently assembled my new PC based on overclock.net user preferences, so I bought Asus P8Z68-V Pro/Gen3 + i7 2600k + H100 (p/p) + Haf X + HX750.
I'd like to overclock my system to 4.8Ghz with low vcore value. I followed the guide below and managed to keep my system stable at 4.8Ghz only with 1.425V.
http://hardforum.com/showthread.php?t=1578110

Are there any members with similar config, overclocked their CPU to 4.8Ghz and could provide their BIOS settings?
Thanks in advance

Check the Stable Sandy link in my signature. Munaim1 is now posting BIOS templates there. Your chip may just not be a good overclocker as well. There's not really a secret to low vcore, either it works or doesn't. I've been through 3 2700ks to find one that suits me. However, I would think a current 2600K should be able to get 4.8 at lower vcore than you're showing.

BTW, welcome to OCN. Prepare to spend lots of time here, whether your mean to or not.thumb.gif +rep for your first post.
breenemeister is offline  
post #3 of 7 Old 12-16-2011, 05:50 AM - Thread Starter
 
visata's Avatar
 
Join Date: Nov 2011
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 3
Thanks for a reply.

I'm aware about Sandy Stable Club and spent much time reading posts there actually too much smile.gif

I did some more testing just by leaving everything on auto and only changing multiplier. Here are my results:
44x - max vcore value 1.336V
45x - 1.352V (diff 0.016)
46x - 1.392V (if I disable spread spectrum, it raises to 1.4V) (diff 0.4!)

So it seems it's not worth to overclock over 45x as vcore rises disproportionately unless I play around with manual settings.

I also found one user with similar hardware specs (expect he owns slightly different motherboard P8Z68-v Pro instead of GEN3) and tried using his BIOS settings but I ended up with 1.488v instead of advertised 1.312v. Maybe my chip is not good enough for extreme overclocking?
http://forums.overclockers.co.uk/showpost.php?p=20744550&postcount=12

visata is offline  
Sponsored Links
Advertisement
 
post #4 of 7 Old 12-16-2011, 12:29 PM
3.0ghz
 
breenemeister's Avatar
 
Join Date: Aug 2010
Location: Virginia
Posts: 1,189
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 56
Quote:
Originally Posted by visata View Post

Thanks for a reply.
I'm aware about Sandy Stable Club and spent much time reading posts there actually too much smile.gif
I did some more testing just by leaving everything on auto and only changing multiplier. Here are my results:
44x - max vcore value 1.336V
45x - 1.352V (diff 0.016)
46x - 1.392V (if I disable spread spectrum, it raises to 1.4V) (diff 0.4!)
So it seems it's not worth to overclock over 45x as vcore rises disproportionately unless I play around with manual settings.
I also found one user with similar hardware specs (expect he owns slightly different motherboard P8Z68-v Pro instead of GEN3) and tried using his BIOS settings but I ended up with 1.488v instead of advertised 1.312v. Maybe my chip is not good enough for extreme overclocking?
http://forums.overclockers.co.uk/showpost.php?p=20744550&postcount=12

I have the exact mobo as you and I've noticed that the board tends to inflate voltages more than is needed for most chips, kind of like throwing enough voltage at it for the worst case scenario. When I put mine on auto at 4.8 GHz with CPU current capability at 140%, it booted with the voltage at 1.544! All chips are different, but here's a direct link to all my pertinent BIOS settings for a 12 hours stable Prime 95 blend run at 4.8 GHz at the sandy stable thread. I'm using offset voltage of +.005, but I get the same results at manual 1.360. This may be a good starting point for you.

http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet/6110#post_15931225
breenemeister is offline  
post #5 of 7 Old 12-16-2011, 02:58 PM - Thread Starter
 
visata's Avatar
 
Join Date: Nov 2011
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 3
Same here, when I changed CPU capability to 130% or 140%, I've got similar vcore results too. I found a good point here:
http://www.overclock.net/t/1183710/i7-2700k-5-0ghz-1-41v/30#post_15958950


If I disable HT, I believe I will get the same voltages as 2500k owners.

visata is offline  
post #6 of 7 Old 12-16-2011, 03:40 PM
3.0ghz
 
breenemeister's Avatar
 
Join Date: Aug 2010
Location: Virginia
Posts: 1,189
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 56
Quote:
Originally Posted by visata View Post

[/URL]
If I disable HT, I believe I will get the same voltages as 2500k owners.

Yeah, but then you should have just bought a 2500K! Leave that HT enabled.thumb.gif

breenemeister is offline  
post #7 of 7 Old 12-16-2011, 05:26 PM
PC Gamer
 
Saizer's Avatar
 
Join Date: Apr 2011
Location: Argentina
Posts: 1,000
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 22
LOL, after reading this post I can call myself a lucky person: 4,5 Ghz with 1,25 of VCore xD. I think this also depends on the motherboard: You got a pretty basic motherboard (while I have a pretty nice EVGA P67 FTW, for instance), IMO.
Saizer is offline  
Reply

Quick Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off