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New i7-3770k, extremely low performance and low temps...?

post #1 of 40
Thread Starter 
I noticed that my new i7-3770k (stock clocks, etc.) had extremely low temps under load, so I fired up burntest and hwmon and I realized that this CPU just isn't performing. I'm getting consistently less than 40 GFLops, which is right around what my old Celeron G540 used to get. I know from Googling that I should be expecting 100 to 140 GFlops. My temps never go above 55 degrees Celsius. Sometimes it passes BurnTest and other times it reports that the system is not stable (see pictures).

I tried various hardware configurations, including different RAM, with and without GPU, updating BIOS, etc. Does anyone know what the problem might be, or what the potential culprits are? Could a CPU be "bad" in such a way that allows a system to boot but the CPU only offers partial performance? Potentially relevant, my motherboard reports a debug code of "A0", which, according to my manual, is "IDE initialization is started", and it stays on that even while the system is booted.

My current configuration:
Mobo: Gigabyte GA-Z77X-UD3H
CPU: i7-3770k
PSU: Antec Basiq 550w (model BP550 PLUS)
GPU: Gigabyte Windforce 7950
HDD: Crucial M4 (128GB)
RAM: TeamElite something something, 8GB

Advice is much appreciated, this is driving me bonkers...

Some pictures:
http://i.imgur.com/qzsWf.jpg
http://i.imgur.com/7ovLw.jpg
http://i.imgur.com/JKwiw.jpg
post #2 of 40
Quote:
Originally Posted by richardstallman View Post

I noticed that my new i7-3770k (stock clocks, etc.) had extremely low temps under load, so I fired up burntest and hwmon and I realized that this CPU just isn't performing. I'm getting consistently less than 40 GFLops, which is right around what my old Celeron G540 used to get. I know from Googling that I should be expecting 100 to 140 GFlops. My temps never go above 55 degrees Celsius. Sometimes it passes BurnTest and other times it reports that the system is not stable (see pictures).
I tried various hardware configurations, including different RAM, with and without GPU, updating BIOS, etc. Does anyone know what the problem might be, or what the potential culprits are? Could a CPU be "bad" in such a way that allows a system to boot but the CPU only offers partial performance? Potentially relevant, my motherboard reports a debug code of "A0", which, according to my manual, is "IDE initialization is started", and it stays on that even while the system is booted.
My current configuration:
Mobo: Gigabyte GA-Z77X-UD3H
CPU: i7-3770k
PSU: Antec Basiq 550w (model BP550 PLUS)
GPU: Gigabyte Windforce 7950
HDD: Crucial M4 (128GB)
RAM: TeamElite something something, 8GB
Advice is much appreciated, this is driving me bonkers...
Some pictures:
http://i.imgur.com/qzsWf.jpg
http://i.imgur.com/7ovLw.jpg
http://i.imgur.com/JKwiw.jpg

Gigaflops don't really mean much, maybe test with cinebench or something you can find comparisons with to check the cpu performance. Being unstable at stock clocks isn't a good thing though, I'd try either a clear cmos & leave options at auto (stock speed everything) & see if it is consistently stable, or maybe memtest the memory & make sure that is good.
    
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post #3 of 40
Thread Starter 
I tried resetting to default (never changed anything, though...), and it hasn't had any effect. I'm starting to get BSODs now.
post #4 of 40
Go into the BIOS and check the CPU core voltage - not sure why the MOBO would run such a low voltage through the chip... Take some pics in the BIOS and upload them if you can.

Stock voltage I think is 1.025v - set it to that in the BIOS and check the voltage in CPU-Z - see if she's stable then.

Unfortunately, I'm stuck with AMD right now and can't help much beyond that smile.gif

Oh, one more thing.. take pics of the "offsets" values in the BIOS if they happen to be on by default...
     
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post #5 of 40
Quote:
Originally Posted by richardstallman View Post

I tried resetting to default (never changed anything, though...), and it hasn't had any effect. I'm starting to get BSODs now.

I don't know much about your problem but I know for sure that A0 is not a problem. I had 3 different asus motherboards and they all say A0 on the debug code. I found out it was normal and on mine it always said that even after boot while the computer was running. My Rampage IV Extreme now says AA at all times on the debug code LED and it is also normal. At least you can rule out one culprit. Sorry i couldn't help more.
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post #6 of 40
Sorry
Edited by strong island 1 - 11/29/12 at 2:18pm
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post #7 of 40
I'm sorry but my computer bugged out. I only posted my reply once and it made a ton of replies. Sorry.
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post #8 of 40
Thread Starter 
Thanks for the replies guys, good to know that the A0 code isn't a problem. I checked my voltages and they seem fine... BIOS reports default to around 1.15 or something, and it seems to bounce around that during testing.

http://i.imgur.com/SclW0.jpg

Edit:
Ran Intel's CPU diagnostic tool and got a "pass", but the problem persisted throughout the diagnostic regardless. 100% CPU utilization, but temps maxed out at about 50 degrees Celsius. Blah...
Picture: http://i.imgur.com/F2shz.jpg

Edit edit:
Through some googling it looks like this gentleman is having a similar issue: http://www.tomshardware.com/forum/257205-29-function-causing-sorts-problems. I'm really hopeful that this is a simple settings problem and not a hardware flaw.
Edited by richardstallman - 11/29/12 at 3:07pm
post #9 of 40
It's your mobo hopefully, because that we can fix. I'll be home in a few minutes, but I just typed out a large set of instructions on my phone and it wouldn't go through. So this will be the summary till I get back in 10min. 1. Load Optimized defaults, Save exit. 2. You said you have an SSD and your getting the IDE error code.(could be BSOD reason). 3. Check your booting with AHCI, I know on my new z77-ud4 it is set default, but it wasn't on my z68. 4. I'm assuming your not using a stock cooler, If loading optimized defaults did not help, do these simple changes and take screenshot's but don't stress test it yet. The issue is most likely the bus speed is slowing things down, those settings look similar to what I've seen before on a gb board that went to base settings. So do this change in your bios under MIT/Advanced frequency/advanced cpu core change CPU Clock ratio to 40, disable c3/c6 power states on that page. The c3/c6 I can explain in detail later, it's an issue with GB boards and SSD's. Lastly make sure your booting in AHCI, if it's set at auto and your getting that code it must not be so on the safe side just set it to AHCI. Try those things and let me know the clock change should get your bus speed back on the right side of things, I just want to make sure it's working correctly before I can help you tune your voltages manually or get you back to stock with some manual changes to help stablaize you, if that's what you want.
post #10 of 40
Quote:
Originally Posted by nizda View Post

It's your mobo hopefully, because that we can fix. I'll be home in a few minutes, but I just typed out a large set of instructions on my phone and it wouldn't go through. So this will be the summary till I get back in 10min. 1. Load Optimized defaults, Save exit. 2. You said you have an SSD and your getting the IDE error code.(could be BSOD reason). 3. Check your booting with AHCI, I know on my new z77-ud4 it is set default, but it wasn't on my z68. 4. I'm assuming your not using a stock cooler, If loading optimized defaults did not help, do these simple changes and take screenshot's but don't stress test it yet. The issue is most likely the bus speed is slowing things down, those settings look similar to what I've seen before on a gb board that went to base settings. So do this change in your bios under MIT/Advanced frequency/advanced cpu core change CPU Clock ratio to 40, disable c3/c6 power states on that page. The c3/c6 I can explain in detail later, it's an issue with GB boards and SSD's. Lastly make sure your booting in AHCI, if it's set at auto and your getting that code it must not be so on the safe side just set it to AHCI. Try those things and let me know the clock change should get your bus speed back on the right side of things, I just want to make sure it's working correctly before I can help you tune your voltages manually or get you back to stock with some manual changes to help stablaize you, if that's what you want.

The A0 code is definitely normal. It's not an error it is "IDE Initialization has started". When all my mobo's said that I was also using an SSD in AHCI mode. I was really worried about it at first also but I googled for a couple days and found out it was perfectly normal. Then I really realized it was normal when all my mobo's had that code.
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