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Can't get a stable 4.5 OC on i7 920 D0

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November 26, 2009 11:38:31 AM

I can get a stable 4.2, but i'm trying to hit 4.6, but trying stable , I can't find stable settings, i'm running damn high voltage, semi-stable. I can do 32mil SuperPi, but I freeze less than one cycle into Sandra Soft Arithmetic CPU test. Using Muskin 1600 RAM, and an AsRock X58 Extreme Mobo.
Using V8 cooler.
Multiplier is 21
BCLK is 215



I'd love any help.

More about : stable 920

a c 125 K Overclocking
November 26, 2009 12:58:24 PM

Are you trying to kill it? V8 + 1.552V = Fail.

I'd love to know your temps. If you'd like some help it would be great if you could tell us your BIOS settings.
November 26, 2009 1:04:25 PM

Temps were idleing at 55, and I never really hit about 75/6 on Pi.

I've got work in a bit, i'll post some bios shots after I get home.
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a b å Intel
a c 197 K Overclocking
November 26, 2009 2:23:13 PM

If you have your vcore at 1.55 volts, you have exceeded the limit of your CPU chip. You probably are not going to get a stable 4.5 GHz OC.
a b K Overclocking
November 26, 2009 8:09:09 PM

Come on guys, im sure he knows the risks. If he wants to bench let him. But as others have said, this is not a good voltage to run at 24/7. Once you passs 1.55v you GREATLY increase the electron migration.

Im assuming your at the point where whatever you do it fails?

If so try bumping up the pci-e speed. Most mobo's cant do anything above 225 bclock without a bump up in pci. But what usualy hapens is that the board just wont boot. you could try it though.


But like i said before, running like this is not safe. High pci speeds will currupt the drive.
a b K Overclocking
November 26, 2009 9:22:44 PM

^Agreed.

Also, what's the vdroop on that board? I hear it's got a pretty high vdroop (can you confirm this OP?). Btw, what are the stock voltages on that CPU OP? Looks like a pretty nice CPU esp. considering HT seems to be ON @ 4.5Ghz on AIR! Have you tried bumping up vcore a bit more?
a b K Overclocking
November 27, 2009 1:55:03 AM

Yeah, seems like the V8 didn't really pan out as far as how great it was suppose to be. I mean sure it's a good cooler, but there are better, cheaper, smaller coolers. Anyway, your chip is probably at it's limit as the others have said. If you want to push it further you are going to need more aggressive cooling. Also make sure that your RAM isn't currently at some absurd setting that would affect it's stability.
a b å Intel
a c 197 K Overclocking
November 27, 2009 1:59:31 PM

overshocked said:
Come on guys, im sure he knows the risks.

We don't know that. Nothing the OP said indicates that he is aware of the risks.

My impression is that he has noticed that his vcore seems a little high and he is asking.

In which case, I say, "YAAY!" :bounce:  He's got good instincts.
December 3, 2009 10:25:34 AM

Well guys, my MoBo Shorted due to the voltage, and another one will arrive tomorrow, and I've had no access to a computer since then. For when I get my new MoBo though(same model) I would like some opinions on best way to get a stable 4.5. I'm going to bump it up to 4.2 at first, but obviously, i'm not going to just go from stock settings, to a 4.2 setting. I knew the risks, but I wasn't having any luck and just tossed up the voltage, and well, this is what I get. But on the plus side, I did get a job at a computer repair shop because of this.
a c 125 K Overclocking
December 3, 2009 11:06:30 AM

Congrats for getting a job : )

4.5ghz on air is alittle optimistic to be honest, I can't get 4ghz with HT on without the temps going above 70C (i'm using a Lapped TRUE) and im only using 1.25000V. Your temps must be pretty high with 1.552V.

If you want 4.5ghz that much then get a very decent watercooling loop
December 3, 2009 1:56:12 PM

3870.34 FSB / 2 = 1935.17MHz DDR3 SPEED MIN. And 1600 Muskin Rated Ram Speed????????????????? Any opinions on that?
a c 125 K Overclocking
December 3, 2009 2:43:21 PM

His memory speed isn't his rated FSB x 2, For example i have my memory running at 1140mhz and my rated FSB is 3419.85mhz.

a b K Overclocking
December 3, 2009 3:02:24 PM

The Xtreme is not a great OC'ing mobo. 4.2Ghz and tolerable voltage would have kept it alive. Not sure why so many users want more than 4.2Ghz on a 920. For benching purposes I can understand, but for everything else anything over 4Ghz is a waste.

To the OP, if you want anything over 4.2Ghz and you want the board to last at such clocks you need something better than the Extreme. Overshocked will tell you the same, Asrock 1366 boards just don't cut it when it comes to extreme overclocking. There is a reason why they are so cheap.

December 3, 2009 3:54:40 PM

I believe, His Blk Speed x Mulitplier, makes his QPI at X = > FSB @ X, and his DDR speed has to be 1/2 of QPI which is equal to or less then FSB. I guarantee that his memory is way over 1600.
a c 125 K Overclocking
December 3, 2009 4:46:04 PM

I guarantee its not, I could run my core i7 at 4.5ghz with my 1333mhz memory running at 1330mhz, All i'd have to do is set my memory multi to x6, Not sure if the OP's mobo has that option or not.

Anyways OvrClkr has hit the nail on the head i think, that motherboard just isn't good enough for that kinda Overclock/voltage....maybe it has a weak power phase design and cant handle 1.552V
a b å Intel
a c 197 K Overclocking
December 3, 2009 5:07:00 PM

And maybe he has just reached the limits of that particular chip.
December 3, 2009 5:14:36 PM

Rustyy117 said:
I guarantee its not, I could run my core i7 at 4.5ghz with my 1333mhz memory running at 1330mhz, All i'd have to do is set my memory multi to x6, Not sure if the OP's mobo has that option or not.

Anyways OvrClkr has hit the nail on the head i think, that motherboard just isn't good enough for that kinda Overclock/voltage....maybe it has a weak power phase design and cant handle 1.552V


OP "Multiplier is 21
BCLK is 215 "

December 3, 2009 6:39:50 PM

OvrClkr said:
The Xtreme is not a great OC'ing mobo. 4.2Ghz and tolerable voltage would have kept it alive. Not sure why so many users want more than 4.2Ghz on a 920. For benching purposes I can understand, but for everything else anything over 4Ghz is a waste.

To the OP, if you want anything over 4.2Ghz and you want the board to last at such clocks you need something better than the Extreme. Overshocked will tell you the same, Asrock 1366 boards just don't cut it when it comes to extreme overclocking. There is a reason why they are so cheap.


BIG TIME DITTOS ON THAT.

I've had two ASRock X58 Extremes die on me within a short period of time. Now on EVGA and it's MUCH better.
a c 125 K Overclocking
December 3, 2009 6:46:42 PM

pluke the 2 said:
OP "Multiplier is 21
BCLK is 215 "



Your point? 21 CPU multi just means he has turbo on. His memory is still nowhere near its rated specs, Provided he has his memory multi to x6. If it was at x8 he might have a problem, but the OP didn't say so we don't know.
a b K Overclocking
December 3, 2009 7:25:09 PM

ruffhouseutah said:
BIG TIME DITTOS ON THAT.

I've had two ASRock X58 Extremes die on me within a short period of time. Now on EVGA and it's MUCH better.


What EVGA board you get? E757, E758 or Classified?
December 3, 2009 8:23:50 PM

Ok, I never had any problems with OCing on ASRock boards, but then again, I have never pushed them above 3.8. If this one burns, what would recommend? Classified? Rampage? I'm not a random rich kid, but money is pretty much a none issue. 40 hour week job, my own PC business, and a new job at a PC repair shop, which might lead to a job at a better PC shop. I'm bringing in about 1200 every two weeks right now.
a b K Overclocking
December 3, 2009 8:26:50 PM

Are you hiring? ^^^
December 3, 2009 8:33:11 PM

I'm local only right now, and next year I'm going to get a nice 2 story building, already worked it out with the Realtor. It looks nice, across from a mall, next to a McDonald's.

Edit: Anyway, opinion on the mobo if this one fails?
December 3, 2009 9:41:25 PM

Asus P6T Deluxe V2
December 3, 2009 9:41:47 PM

OP what was your memory at when running your speed @ 4.5ghz?
December 4, 2009 9:01:12 AM

1230 or something close I believe. It's rated at 1600, but i'm trying to get a stable mix between the two.
December 8, 2009 1:16:38 PM

Ok, new board, i'm at 4 on 1.31 semistable, just taking min to post that i'm not dead.
December 10, 2009 4:50:24 PM

wow! i have the same asrock extreme and v8, and i couldn't get it to run @ 4.0 with 1600mhz with patriot ram, now i can with dominator @1600mhz, but i have to turn off the speed stepping(i think) and the HT or else it gets really hot. I haven't try anything higher than 4.0, my vcore voltage is around 1.25, i dont know how u dont have a heat issue @ 1.55, i can push the core clock higher if i lower the ram/cpu ratio and push the vcore voltage higher, but yeh, i'm sure i'll get heat issue, well its great to know that the asrock extreme can push that high,
a b K Overclocking
December 10, 2009 5:07:13 PM

Flying Sq said:
I'm local only right now, and next year I'm going to get a nice 2 story building, already worked it out with the Realtor. It looks nice, across from a mall, next to a McDonald's.

Edit: Anyway, opinion on the mobo if this one fails?


where is the store located at?
!