overvolt using my truepower front panel?

keef · 4 Jun 2006 at 19:45

basically, the max voltage my dfi lanparty sli-dr is 1.55v (cpu), i have an antec truepower 550, i was wandering if i could raise this a bit using the front panel adjustment? and if so then which rail would i have to adjust??

i want 1.6v! also what is the best programme to read my volts?

m3csl2004 · 4 Jun 2006 at 19:50

certain bios's will aloow for voltages much higher than 1.55

keef · 4 Jun 2006 at 19:52

not touched a bios before, just done what i could with what i had!
what is best bios? are they easy to flash?

Jimbo Mahoney · 4 Jun 2006 at 21:10

Use the extra % setting. CPU Special or something it's called.

1.55 and 113% should be your max = 1.75v

n30_mkii · 4 Jun 2006 at 21:12

This is exactly right! I have an SLI-DR and have the % Special so it now runs at 1.65 but it can go much higher!

Indy500 · 4 Jun 2006 at 21:14

They removed the up to 2.1v option from newer bioses as too many people were frying their CPUs.

Jimbo Mahoney · 5 Jun 2006 at 09:30

sr4470 said:
They removed the up to 2.1v option from newer bioses as too many people were frying their CPUs.

I'd read at DFI Street it was because of a bug in the BIOS that gave the CPU more voltage than it should have done at higher CPU Special %, therefore unexepectedly killing CPUs.

I lost a sweet 3000 Venice to my DFI's CPU Special

Indy500 · 5 Jun 2006 at 10:03

Yeah, maybe so, either way I'm cautious with voltage. Fortunately 90nm cpus dont need much

Jimbo Mahoney · 5 Jun 2006 at 14:12

sr4470 said:
Yeah, maybe so, either way I'm cautious with voltage. Fortunately 90nm cpus dont need much

Yeh, to be fair, they start to top out with volts pretty quick, unless you're on phase. Even with water, it takes huge voltage jumps to get any gains when you start going above ~ 1.55v.

Bundles · 5 Jun 2006 at 16:13

Jimbo Mahoney said:
Yeh, to be fair, they start to top out with volts pretty quick, unless you're on phase. Even with water, it takes huge voltage jumps to get any gains when you start going above ~ 1.55v.

[Darth Vader]You have no idea the power of the spark side![/Darth Vader]

Jimbo Mahoney · 5 Jun 2006 at 18:41

Bundles said:
[Darth Vader]You have no idea the power of the spark side![/Darth Vader]

Really?

OK, I'm bored waiting for Conroe - I'll be back after some testing up to 1.75v and see if I can hit 3.1 Ghz

(either that or I'll be posting from my laptop 'cos I killed my chip...

Jimbo Mahoney · 5 Jun 2006 at 21:31

OK, so 3.1Ghz was JUST doable @ 1.65v, but I'm giving it 1.7v to be safe.

Managed to get a 1M SuperPi of 27.5 seconds

Could never get past 3.07Ghz before, and that was just for benching. I've been running the chip @ 3.05Ghz, 1.65v fully loaded 24/7 for months, so I guess it's burnt in a little.

Just to be uberg33ky, here's a graph of the chip's response to voltage: (only tested 4M SuperPi for stability)

Indy500 · 5 Jun 2006 at 21:36

I'd have stopped at 1.5v. Law of diminishing returns for the win

and anyway, I see little point in adding 0.2v for just 100mhz.

Jimbo Mahoney · 5 Jun 2006 at 21:41

sr4470 said:
I'd have stopped at 1.5v. Law of diminishing returns for the win and anyway, I see little point in adding 0.2v for just 100mhz.

Law of diminishing returns? pah

Law of maximum overclock > *

Entry / mid-level CPU clocking 4tw

Indy500 · 5 Jun 2006 at 21:42

Jimbo Mahoney said:
Law of diminishing returns? pah

Law of maximum overclock > *

Entry / mid-level CPU clocking 4tw

I'm only on air cooling, gimme a break

Jimbo Mahoney · 5 Jun 2006 at 23:16

sr4470 said:
I'm only on air cooling, gimme a break

Sorry. I take the ability to use as much voltage as I want for granted now. Haven't aircooled in as long as I can remember.

Indy500 · 5 Jun 2006 at 23:18

Jimbo Mahoney said:
Sorry. I take the ability to use as much voltage as I want for granted now. Haven't aircooled in as long as I can remember.

Unfortunately I get bad temps as it is on 1.4v (54C load)

keef · 5 Jun 2006 at 23:34

cheers guys! havent been able to read the thread for a while because of browser problems!
will add the % thingy(technical term btw) see what i can do! will post my superpi 1m time see if i can beat 27...

Bundles · 6 Jun 2006 at 15:57

Jimbo Mahoney said:
Sorry. I take the ability to use as much voltage as I want for granted now.

Glad to hear it sah! It's amazing what you and some voltage can do

[DarthVader]Welcome to the spark side young padiwan[/DarthVader]

overvolt using my truepower front panel?

Wise Guy

Wise Guy