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Toine3
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OC Newbie
8 Jahre dabei !


Hi, first of all I'm not good in writing down German, but I can read German very well, so all the answers can be written down in German.

I know its is limited to overclock a Dell, but does anyone know how to increase the CPU voltage to overclock my Dell Dimension E521. Use now Clockgen and Central Brain Identifier, but I see no ways to increase the CPU voltage. I'm a little bit afraid off using the Voltmod as explained on this forum, so I'm want to go for Software.  

Dell is now upgraded to a AMD 64 X2 6400+ CPU
North BridgeNVIDIA GeForce 6150 Revisie A2
South BridgeNVIDIA nForce 410/430 MCP Revisie A2

Did a try but Nvidia Ntune and AMD Overdrive software are not working.
Thanks Toine

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spraadhans
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Real OC or Post God !
13 Jahre dabei !

Intel Core i7
3700 MHz @ 3700 MHz
55°C mit 0.99 Volt


Increasing CPU Voltage will probably result in higher temps without getting much more out of this kind of CPU.

The 6400+ runs nearly the limit of the K8 architecture, so it is one of the worst cases in AMD OC;).

Stay at 3200 MHz because even with higher Vcore there might be only 200 Mhz more, with a little luck you may get 300.

Tried Rmclock or Crystalcpu yet?


(Geändert von spraadhans um 13:25 am Juli 22, 2009)


Longer bars indicate better performance.

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Toine3
aus Eurozone
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OC Newbie
8 Jahre dabei !


No I'm using clockgen and CBI. RMclock is only for lowering the voltage not for increasing as I can remember.
Did downloaded CrystalCPUID, just like in CBI I can not go higher that 1.45Volt, so it appears to me that somewhere the Dell mobo does limited the core voltage to max. 1.45V.  

 
BTW: strange that the moderator changes this topic to English forum, because I can NOT WRITE GERMAN, BUT I CAN READ GERMAN VERY WELL, so replies in German are always welcome.  

(Geändert von Toine3 um 21:53 am Mai 19, 2009)


(Geändert von Toine3 um 22:30 am Mai 19, 2009)

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spraadhans
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Real OC or Post God !
13 Jahre dabei !

Intel Core i7
3700 MHz @ 3700 MHz
55°C mit 0.99 Volt


You're probably right, 1,45v might be the limit of the dell mainboard.

How far goes the CPU for now?


Longer bars indicate better performance.

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t4ker
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OC God
11 Jahre dabei !


Just try it with the stock vcore.  You have to change the ref. clock generator....set it for e.g. to 220 and you will see if it works. A good tool for testing the stability is Sp2004 (Prime 95).

Regards

t4ker

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Blackout
aus .at Klagenfurt-Land
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OC God
15 Jahre dabei !

AMD FX
3500 MHz @ 5000 MHz
46°C mit 1.48 Volt


one opportunity is to go to the workshop.
"pinmod anleitung"
there you can increase the voltage up to 1,55v
with one wire

try this first


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ocinside
aus Krefeld
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Administrator
16 Jahre dabei !

Intel Core i5
3800 MHz @ 5098 MHz
60°C mit 1.44 Volt


Yes, this Socket AM2 pinmod guide pinmod should work fine with your processor.
Dell overclocking seem to be very interesting for several users, so Toine3 did you already get higher overclocking results of your Dell Dimension E521?


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Toine3
aus Eurozone
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OC Newbie
8 Jahre dabei !


Sorry for the late reply, but right now it seems that the Dell dimension E521 mobo is limited in Watt, so increasing a few watts will give you directly a crash in CPU stress testing. Higher Voltage and higher FSB will bring here nothing.
I did even try to find the optimum in lowering the multiplier & increasing the FSB and with lowering the voltage I was trying to keep the Watt below max limit, but still then only a few extra Ghz profit, before crashing.  
For testing I have used Orthos and OCCT.  No way to do a decent OC on this Dell.



(Geändert von Toine3 um 20:49 am Dez. 12, 2010)

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rage82
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Real OC or Post God !
16 Jahre dabei !

Intel Core i7
3500 MHz @ 3800 MHz
53°C mit 1.05 Volt


as an additition, tools like rmclock are working with the VID of the cpu. so the maximum is given by the cpu.

for example an intel core2 e6600 with VID of 1,3225v limits the tool to this voltage. normally the maximum VID is the normal vcore, so you are right to say, these tools are only for lowering vcore.

probably, this is not a problem of your mainboard, like spraadhans said, the 6400+ runs by default near the k8 limits.

so, most likely, the problem is the whole combo. a dell mainboard (and maybe a narrowed power supply) plus the 6400+.


"Beim Beschleunigen müssen die Tränen der Ergriffenheit waagerecht zum Ohr hin abfließen" - Walter Röhrl

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ocinside
aus Krefeld
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Administrator
16 Jahre dabei !

Intel Core i5
3800 MHz @ 5098 MHz
60°C mit 1.44 Volt


And if it's limited by the voltage regulators, you should try to optimize the cooling (... of course you should always optimize it, particularly when you're increasing the voltages).
On the other hand, the maximum voltage could be also limited by the power supply, did you already test it with another PSU?


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