Failing SuperPI @ Stock speeds?!

Pulsedriver · 29 Apr 2006 at 12:09

Hi folks, I been overclocking and trying it in Super PI.

http://forums.overclockers.co.uk/showthread.php?t=17569213

However,

After getting

"NOT CONVERGENT IN SQR05" error messages, I gave up.

Just for humour, I thought i'd run a SuperPI on my stock setup

...And it failed with the same error!

Whats going on?

Soul Rider · 29 Apr 2006 at 12:14

Not enough voltage is causing a rounding error in the calculations.

It's how i tell if I have pushed to OC too far, a failed Super Pi.

If it's happening at stock I suggest you clear your cmos a couple of time to make sure you are running at correct defaults, it's easy to forget a setting or 2, i'm forever forgetting!!

Pulsedriver · 29 Apr 2006 at 12:20

Strange... I Just reset BIOS to default, and it STILL does it...

ted34 · 29 Apr 2006 at 12:53

I see your running ballistix so id run memtest and check your memory hasnt died

Minstadave · 29 Apr 2006 at 12:56

ted34 said:
I see your running ballistix so id run memtest and check your memory hasnt died

Yup thats probably the culprit, mines just gone in for RMA.

Pulsedriver · 29 Apr 2006 at 13:18

Would that cause SuperPI to fail?

I RMA'd one stick not long ago, I guess ill have to do a memtest again.

Shall I just do it on all settings or just 5 + 12 for memtest?

And is 2 hours enough?

Cyber-Mav · 29 Apr 2006 at 13:20

run goldmemory or memtest86+ tests 5 and 8. more than likely you will be seeing errors in the first pass.

Minstadave · 29 Apr 2006 at 13:22

Cyber-Mav said:
run goldmemory or memtest86+ tests 5 and 8. more than likely you will be seeing errors in the first pass.

Try the windows based memtest tool, that can be very sensitive to memory errors too.

ted34 · 29 Apr 2006 at 13:24

The dos based memtest is generally better though so id recomend using that instead

Pulsedriver · 30 Apr 2006 at 12:26

Do you guys think this is the reason why its failing SuperPI @ stock...

welshtom · 30 Apr 2006 at 12:31

You shouldnt have any errors.

whats the ram voltage set at?

Tom

Pulsedriver · 30 Apr 2006 at 12:36

2.6V, just standard nothing overclocked.

I already RMA'd the Ballistix a while back, I'll have to check which dimm it is, knowing my luck its both!

Jokester · 30 Apr 2006 at 12:39

Increase the RAM voltage to 2.8V.

Jokester

Pulsedriver · 30 Apr 2006 at 12:44

Why 2.8v though? I only want to run it standard for the moment.

Jokester · 30 Apr 2006 at 12:47

2.8V is the stock voltage.

Jokester

Minstadave · 30 Apr 2006 at 12:54

SeanyK said:
Why 2.8v though? I only want to run it standard for the moment.

Jokesters right, the stock voltage for Crucial Ballistix is 2.8V as rated by Crucial, but as you already know most Ballistix tends to die after a few months, mines currently in for RMA.

Pulsedriver · 30 Apr 2006 at 12:58

Personally, I've never believed that undervolting ram would cause errors.

BUT;

Im not saying you guys are making it up, so I just did a memtest...

Changed ram volts to 2.8V

Within 5 mins error on test 4 again!

Gonna RMA then get another brand.

Minstadave · 30 Apr 2006 at 12:59

SeanyK said:
Personally, I've never believed that undervolting ram would cause errors.

BUT;

Im not saying you guys are making it up, so I just did a memtest...

Changed ram volts to 2.8V

Within 5 mins error on test 4 again!

Gonna RMA then get another brand.

Sounds like the best idea

Pulsedriver · 30 Apr 2006 at 13:03

Thanks for the help though guys

Mattus · 1 May 2006 at 00:41

Mate, you're not running two copies of SuperPI out of the same folder at the same time are you?

If so, one of them will overwrite the temporary files of the other and cause it to crash.