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E5200 - Overclocking Thread - Page 126

Poll Results: Should the thread name be changed to E5x00 Overclocking Thread

Poll expired: Jan 24, 2009  
  • 58% (39)
    Yes, Change it to E5x00 Overclocking thread
  • 41% (28)
    No, Lets keep it how it is
67 Total Votes  
post #1251 of 4653
Quote:
Originally Posted by hout17 View Post
I'm running a 10.5 multi (3.5ghz) and I am stable at 1.34vcore but before when I was running the stock 12.5 multi I had to have a 1.36vcore for the same overclock to be stable. I always thought that higher multi meant more stress on the chip less stress on the board and lower multi meant less stress on the chip and overall more stress on the board.
That's odd because it's the complete opposite for me. And I always thought lower multi means higher FSB which accounts to higher voltages i must be wrong.
Edited by S2kphile - 1/24/09 at 3:43pm
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post #1252 of 4653
Quote:
Originally Posted by S2kphile View Post
That's odd because it's the complete opposite for me. And I always thought lower multi means higher FSB which accounts to higher voltages i must be wrong.
I've experienced this on more than just this chip so that's why I'm inclined to say what I'm saying .
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post #1253 of 4653
I am at 4.01ghz @ 1.38volt 2 hours occtstable.

I'm very happy with this cpu, after all these suicide runs I made with it, look how it threats me.

Here are the usual proofs:

http://valid.canardpc.com/show_oc.php?id=492188



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post #1254 of 4653
Quote:
Originally Posted by glussier View Post
I am at 4.01ghz @ 1.38volt 2 hours occtstable.

I'm very happy with this cpu, after all these suicide runs I made with it, look how it threats me.

Here are the usual proofs:
You make me sick lol that is a sick chip you have there I'm loving that OC you got .
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post #1255 of 4653
Lowering multi raises NBCC, which increases board stress. Plus, with the low FSB on most these chips higher FSB stresses the proc. So in most cases lowering multi will make it more difficult to stabilize.
    
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post #1256 of 4653
Quote:
Originally Posted by PizzaMan View Post
Lowering multi raises NBCC, which increases board stress. Plus, with the low FSB on most these chips higher FSB stresses the proc. So in most cases lowering multi will make it more difficult to stabilize.
It seems this way

12.5x307 3837mhz 1.37V <-- 12 hours prime / 20 runs Intelburntest
11.5X333 3830mhz 1.37V <-- failed prime after 45 minutes
11.5X333 3830mhz 1.39V <-- 12 hours primee / 20 runs IBT


Tweaking the VTT or gtl has no effect !
post #1257 of 4653
Quote:
Originally Posted by FragZero View Post
It seems this way

12.5x307 3837mhz 1.37V <-- 12 hours prime / 20 runs Intelburntest
11.5X333 3830mhz 1.37V <-- failed prime after 45 minutes
11.5X333 3830mhz 1.39V <-- 12 hours primee / 20 runs IBT


Tweaking the VTT or gtl has no effect !
I think it depends on the chip/board relationship because like I said I've had success using lower voltages at the same overclocks at lower multi's (not just on this chip). Another thing to think about is that these things seem to start having stability issues around 350fsb so if you are under that and use a lower multi you may see the same results as I have.

Edit: I've also noticed that the vtt and gtl has no effect I've also seen people saying the same thing over at xtremesystems. These things seem to love the vcore though .
Edited by hout17 - 1/25/09 at 1:04am
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post #1258 of 4653
I guess these chips are made a bit different then other Wolfdale cpu's. VTT/GTL has no effect and the vcore scaling is a bit different.

Too bad i my scythe infinity is insufficient for my lidless e5200, did some more tests this morning.

first prime :

4Ghz 1.42V --> Prime 65°c
4Ghz 1.45V --> Prime 68°c
4ghz 1.47V --> Prime 72°c ( stable at these settings )

Intelburntest

4Ghz 1.42V --> Prime 72°c
4Ghz 1.45V --> Prime 78°c
4ghz 1.47V --> Prime 85°c

I can live with those Prime temps, but those IBT temps are simply too high. I found a true for 25€ (2ndhand), lets hope it will brings my temps down a bit!
post #1259 of 4653
Is 1.47volt the vcore underload?

Temps under IBT, I don't care that much about, there is no way on heart that any other apps will be able to bring your temps that high.
Edited by glussier - 1/25/09 at 5:54am
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post #1260 of 4653
After some tweak in the bios I consistently get 13.9sec superpie scores at 4.01ghz:

Dram static Read ==> Enable
Dram Read training ==> Enable
Ai clock twister ==> Stronger

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