E8400 Voltage worries

[AbnerDoon]

As the title suggests I'm a bit worried at what I'm having to put the voltage up to just to get it stable in OCCT and Prime/Orthos. So far the system has only stayed stable at 1.35 any less and I get errors or system restarts using the above two tests. From what I've seen most people are getting stability at much lower voltages.

Should I be worried? It reads 1.35v in bios and usually steady at 1.31v from SpeedFan, CPU-Z and OCCT.

E8400
Tuniq Tower 120
GA-P35-DS3L (rev. 2.0 w/Bios at f8a)
PC Power & Cooling Silencer 610w
Kingston HyperX PC2-6400 (4x 1gb)

 

[imported_Baka]

Well the max that I have heard is 1.3625V but like they said in the Asus790i Review your still safe with 1.5V.
So I would think youre still safe.

 

[error8]

Originally posted by: Baka
Well the max that I have heard is 1.3625V but like they said in the Asus790i Review your still safe with 1.5V.
So I would think youre still safe.

I guess that 1,5 V is too much for a 45 nm CPU. Someone on this forum said that he burned a e8400 CPU with something like 1,6 V but running it on water cooling and also having less then 50 C on full load, so I guess 1,5 V is in the danger zone.

On the other hand, 1,36 V is quite safe, if you have low temperatures, so no need to worry .

 

[AbnerDoon]

It's pretty cool in the 30c to 35c range for the most part. What worries me is if I ever want to take it to 3.8ghz or 4.0ghz is the voltage will probably be fairly high.

 

[Big Lar]

@ AbnerDoon, I would have to think something else is causing the need for such high volts for that speed, could you list what your NB,VTT and other voltages are please? Also, have you tried with just 2 sticks of ram?

Larry

 

[AbnerDoon]

Robust Graphics Booster = Auto
CPU Clock Ratio = 9x
CPU Frequency = 3.60 (400x9)
CPU Host Clock Control = Enabled
CPU Host Frequency = 400
PCI Express Frequency = 100
C.I.A.2 = Disabled
Performance Enhance = Standard
System Memory Multiplier = 2.0
Memory Frequency = 800
DRAM Timing Selectable = Auto

Memory is all on auto timings.

System Voltage Control = Manual
DDR2 OverVoltage Control = Normal
PCI-E OverVoltage Control = Normal
FSB OverVoltage Control = Normal
(G)MCH OverVoltage Control = Normal
CPU Voltage Control = 1.35v
Normal CPU Vcore = 1.15v

I've tried with 2 sticks of ram it still responds the same no changes.

 

[Big Lar]

Hmm, Looks normal, tho I don't have your board. Any Actual voltage readouts in # form at all as to ram,mch,fsb?

Larry

 

[AbnerDoon]

Ram is 2.0v
FSB is 400 reading at 1.35v
CPU Vid 1.15v

Nothing for MCH that I can find though.

 

[Mondoman]

Originally posted by: error8...]

I guess that 1,5 V is too much for a 45 nm CPU.

Yes, the "absolute maximum" voltage, above which Intel says permanent damage will result, is 1.45V for those CPUs.

 

[Big Lar]

Originally posted by: AbnerDoon
Ram is 2.0v
FSB is 400 reading at 1.35v
CPU Vid 1.15v

Nothing for MCH that I can find though.

Says CPU Vid 1.15v Question is will it boot at 3000 at 1.15v?

Larry

 

[AbnerDoon]

Well I just tested it with OCCT running at 1.3v and stable. Another person I was talking to told me to use the program that came with the mobo along with the bios. So though I had heard to avoid it I downloaded EasyTune5 Pro. When I looked in the program it had the memory at 800 but the voltage was showing 1.9v even though it said 2v in the bios. I changed it to 2v with EasyTune and changed the VCore down to 1.3 then restarted. The bios read the same so I loaded XP and ran OCCT for an hour stable.

I really would rather not have EasyTune on my machine it seems flaky but it seems to have corrected the memory. I'm considering testing the VCore at a lower voltage during the next week to see if I can get it down further.

 

[bfdd]

I actually need 1.35v to get 3.6ghz stable on mine also. There's a real big jump for me from like 3.4-3.6ghz in terms of voltage. Since I can do the stock 3ghz at like just above 1.2v for 4ghz I needed like 1.45v and you can see my current settings which I had to raise the FSB voltage, NB and SB voltages and what not to get stable.

 

[Zenoth]

I need 1.344V to get 3.74Ghz stable, and that doesn't include the +0.2V to the Northbridge.

It runs cool though, 36ºC idle, around 55ºC load (OCCT 12 hours).

 

[AbnerDoon]

I see I'm not the only one this high up with the voltages. After a bit of testing I found 1.35v in bios keeps it steady I just have to change it to 1.3v with EasyTune once XP loads. If I change it to 1.3v in bios it becomes unstable. Wierd no? Once it's changed in XP everything reads the temperatures to 1.3v or lower. It's almost like the board is reading the voltage .5v high because even before EasyTune at 1.35v all the programs I had detected it at 1.3v to 1.31v at full load. Now everything reads it at 1.23v to 1.25v during stress test.

I don't know what to make of it to be honest.

 

[Riverhound777]

Seems high to me. Mine ran pretty stable at 3.6 with stock volts. Around 1.3v to get 4050 on mine with same mobo. I didn't up any other voltages.

 

[AbnerDoon]

I have to wonder if it's the board then? God I don't want to try an rma especially since the board powers up it will be a huge hassle to get them to accept and who knows what I will get back.

Riverhound777 was yours a rev1.0 or rev2.0?

 

[Owls]

My Xeon E3110 runs at 4.1GHz with 1.44v. I can hit 4.2GHz at 1.5v.

My philosophy is why spend $1039 for a QX9650 when you can just get an E8500/E8400 and use the hell out of it for a year or two and upgrade down the line before Nehalem (or upgrade TO Nehalem)

 

[Riverhound777]

Originally posted by: AbnerDoon
I have to wonder if it's the board then? God I don't want to try an rma especially since the board powers up it will be a huge hassle to get them to accept and who knows what I will get back.

Riverhound777 was yours a rev1.0 or rev2.0?

rev 2.0

 

[AbnerDoon]

I have a rev 2.0 as well. Man that is frustrating to see you have the same mobo, hsf and proc and are running at that low of a voltage.

 

[Tempered81]

1.23 volts actual at 3.6ghz isn't something to be worried about... Get cpu-z and take a screenshot for us to see... Take two screens, one at load, and one at idle of all 5 Cpuz tabs open

 

[AbnerDoon]

Here is the at load screen I will get an idle one up tonight.

myurl

 

[Riverhound777]

That vdroop seems a bit high to me. I think mine is at 1.35v in bios(maybe 1.36), 1.3v in windows.

 

[M1A]

At 3.6 I could also run stock voltages. And I can now run at my sig with the lower voltages with the #16 Bios.

 

[bfdd]

Originally posted by: Owls
My Xeon E3110 runs at 4.1GHz with 1.44v. I can hit 4.2GHz at 1.5v.

My philosophy is why spend $1039 for a QX9650 when you can just get an E8500/E8400 and use the hell out of it for a year or two and upgrade down the line before Nehalem (or upgrade TO Nehalem)

That's what really drove me not to do a full system build this time around instead just opting to get a E3110(E8400) and oc the piss out of it till I can do a new build next time around =)

 

[Tempered81]

yah e8400/e3110 @ 4.0 - 4.3 is obviously the best buy for the $ until multiple cores are used a little better.