20070122, 03:55  #12 
Dec 2006
Anchorage, Alaska
2×3×13 Posts 
If I remember correctly, you have an OEM computer (like Dell, Gateway, eMachines ect) so you may not have the option to do so in your BIOS.
I have to ask you a couple questions before I can help, so I know where to go. 1. What make AND model computer do you have? 2. ... Well, I should be able to figure out everything else after that. Unless you changed something like CPU, RAM or Video card ect. If you did, let me know. We'll go from there. 
20070122, 04:12  #13  
Quasi Admin Thing
May 2005
2×3×7×23 Posts 
Quote:


20070122, 08:48  #14 
Nov 2006
83 Posts 
This one is by KEP.
(I had the last erroneous prime in mind) Last fiddled with by Rytis on 20070122 at 09:01 
20070122, 11:29  #15 
Quasi Admin Thing
May 2005
2·3·7·23 Posts 
It may almost have been one of the few primes that I had, that didn't get double checked, but it also has something to do with the LLR program it self, since I have no other errors than download errors when using all other BOINC applications... anyway, Rytis do you think that you have some information on the make and model of my RAM? It would really help a lot, since there isn't much info to gather on the RAM itself, and the hardware list, that came with my computer, is hopelessly outdated, and doesn't contain much info either.
Regards! 
20070122, 13:59  #16  
"Sander"
Oct 2002
52.345322,5.52471
29·41 Posts 
Quote:
You did not btw, report all perfectly valid results. You can't blame LLR for errors that you found with Prime95. You have either a hardware or a software problem if you can't run a prime95 torture test for several hours. Quote:
Anyway, no hard feelings 

20070122, 14:26  #17 
May 2004
FRANCE
3×193 Posts 
My own tests on the false positives
Here are my results using LLR 3.7.1 :
1227950103*2^1950001 is not prime. LLR Res64: 5012A1813BAD3E22 Time : 141.080 sec. 1418514507*2^1950001 is not prime. LLR Res64: 3AD50115CAEA0FC2 Time : 143.033 sec. 1949806593*2^1950001 is not prime. LLR Res64: 8B770930ABC5E5EA Time : 133.622 sec. I hope are you now finding the same residues when using LLR! Let me know if I am wrong... Thank you by advance, Jean 
20070122, 16:29  #18 
Dec 2006
Anchorage, Alaska
2·3·13 Posts 
KEP:
Very small, great little program I install first thing on every computer I own. Use this, and you can even send me the results on the 'HTML Dump' or 'Text Dump' in the 'About' tab, or post them here. http://www.cpuid.com/cpuz.php Last fiddled with by Skligmund on 20070122 at 16:30 Reason: Forgot the link 
20070122, 22:17  #19 
Jan 2007
110_{2} Posts 
It's irrelevant whether few primes are invalid. The scope of the project is to find the biggest twin prime, which was found, checked and confirmed.

20070123, 00:40  #20 
Apprentice Crank
Mar 2006
2×227 Posts 
Having all primes listed accurately will be important for the next n, since the (nontwin) primes will be large enough for the top 5000 list.

20070123, 05:05  #21 
Nov 2006
Earth
40_{16} Posts 
Reviewing the log file, I found the following k that were only tested once. The 3 k's listed in red were false positives (and match the ones MooooMoo already found). All the rest checked out OK (LLR 3.7.0). PG's total primes found goes from 356 to 353.
Note: one observation is 1949806593*2^1950001. The rest of the k were grouped together...this one seems to be an outlier...a bit odd??? 1080206955*2^1950001 is prime! Time : 144.405 sec. 1080206955*2^195000+1 is not prime. Proth RES64: CF16DC89B75F0A71 Time: 145.369 sec. 1086943497*2^1950001 is prime! Time : 144.024 sec. 1086943497*2^195000+1 is not prime. Proth RES64: 0D3EC025C92AD4CB Time: 169.645 sec. 1093603047*2^1950001 is prime! Time : 143.844 sec. 1093603047*2^195000+1 is not prime. Proth RES64: 504FD016FFCF2458 Time: 143.742 sec. 1096601145*2^1950001 is prime! Time : 51.317 sec. 1096601145*2^195000+1 is not prime. Proth RES64: 301E787726F990F3 Time: 149.318 sec. 1098500277*2^1950001 is prime! Time : 154.187 sec. 1098500277*2^195000+1 is not prime. Proth RES64: 405C3C04C35BB682 Time: 162.414 sec. 1227950103*2^1950001 is not prime. LLR Res64: 5012A1813BAD3E22 Time : 174.359 sec. 1236543297*2^1950001 is prime! Time : 148.159 sec. 1236543297*2^195000+1 is not prime. Proth RES64: FC3D02B5FECB8C54 Time: 146.868 sec. 1237075263*2^1950001 is prime! Time : 143.512 sec. 1237075263*2^195000+1 is not prime. Proth RES64: F93FF59D7091E867 Time: 145.419 sec. 1256680185*2^1950001 is prime! Time : 147.604 sec. 1256680185*2^195000+1 is not prime. Proth RES64: EEABC89118487D59 Time: 145.680 sec. 1258544073*2^1950001 is prime! Time : 158.770 sec. 1258544073*2^195000+1 is not prime. Proth RES64: A1C70EE8D9A6169B Time: 129.052 sec. 1261066875*2^1950001 is prime! Time : 146.984 sec. 1261066875*2^195000+1 is not prime. Proth RES64: F02ADE3A121B90F2 Time: 153.958 sec. 1269689493*2^1950001 is prime! Time : 142.814 sec. 1269689493*2^195000+1 is not prime. Proth RES64: 7862566F6F97569F Time: 142.911 sec. 1287247605*2^1950001 is prime! Time : 142.751 sec. 1287247605*2^195000+1 is not prime. Proth RES64: 28C125112DF4D3A1 Time: 142.779 sec. 1289575443*2^1950001 is prime! Time : 143.099 sec. 1289575443*2^195000+1 is not prime. Proth RES64: B4A3CC28EBD0E9A2 Time: 146.202 sec. 1292849397*2^1950001 is prime! Time : 144.658 sec. 1292849397*2^195000+1 is not prime. Proth RES64: 0A044E8AB74E3F13 Time: 142.513 sec. 1295981997*2^1950001 is prime! Time : 142.508 sec. 1295981997*2^195000+1 is not prime. Proth RES64: A9C2BBAD9DDDA4B4 Time: 142.496 sec. 1296039687*2^1950001 is prime! Time : 160.453 sec. 1296039687*2^195000+1 is not prime. Proth RES64: FBE331EF6AA36F7C Time: 171.459 sec. 1313770323*2^1950001 is prime! Time : 173.823 sec. 1313770323*2^195000+1 is not prime. Proth RES64: 88E40B686C4577D8 Time: 177.823 sec. 1404173505*2^1950001 is prime! Time : 201.131 sec. 1404173505*2^195000+1 is not prime. Proth RES64: B33F58FE892FB4DB Time: 198.861 sec. 1418514507*2^1950001 is not prime. LLR Res64: 3AD50115CAEA0FC2 Time : 149.597 sec. 1419416787*2^1950001 is prime! Time : 206.993 sec. 1419416787*2^195000+1 is not prime. Proth RES64: 97427EE6C3AB38C4 Time: 165.234 sec. 1424654007*2^1950001 is prime! Time : 177.556 sec. 1424654007*2^195000+1 is not prime. Proth RES64: 740CAD09E61A2614 Time: 1217.605 sec. 1427258607*2^1950001 is prime! Time : 144.453 sec. 1427258607*2^195000+1 is not prime. Proth RES64: CC8460B8BD4F3448 Time: 144.009 sec. 1438624635*2^1950001 is prime! Time : 159.770 sec. 1438624635*2^195000+1 is not prime. Proth RES64: 84389B9891E46A90 Time: 156.643 sec. 1440031743*2^1950001 is prime! Time : 152.407 sec. 1440031743*2^195000+1 is not prime. Proth RES64: DE8D85726028B0AC Time: 152.009 sec. 1444835733*2^1950001 is prime! Time : 155.562 sec. 1444835733*2^195000+1 is not prime. Proth RES64: CBA166ED88144181 Time: 154.107 sec. 1949806593*2^1950001 is not prime. LLR Res64: 8B770930ABC5E5EA Time : 156.993 sec. 
20070123, 14:26  #22 
Jan 2007
2·3 Posts 

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