CRC errors

[kazed]

Hi,

Every file ive downloaded lately when i try to extract it keeps telling me that the file is corrupt or destroyed, im starting to think there is something wrong with my windows 7 for some reason.

Been trying to download and install World of warcraft since my cd for WOTLK has gone missing, ive been trying 2 different torrent ones and 1 full client download, i refuse to believe that their all suffering from the same since i talked to the site owner of one of the clients and he didnt have any crc errors with it.

Files i have downloaded maybe 2-3 weeks ago work fine when i try to unpack them, but not recent ones.

So im starting to think, what can cause crc errors within windows to screw up everything i download ?

 

[baarod]

Hi,

Every file ive downloaded lately when i try to extract it keeps telling me that the file is corrupt or destroyed, im starting to think there is something wrong with my windows 7 for some reason.

Been trying to download and install World of warcraft since my cd for WOTLK has gone missing, ive been trying 2 different torrent ones and 1 full client download, i refuse to believe that their all suffering from the same since i talked to the site owner of one of the clients and he didnt have any crc errors with it.

Files i have downloaded maybe 2-3 weeks ago work fine when i try to unpack them, but not recent ones.

So im starting to think, what can cause crc errors within windows to screw up everything i download ?

You have a network interface card issue or you have overclocked your CPU or RAM. Every CRC issue we've encountered has been hardware-based. Please list any and all changes to software and hardware for the last three weeks. Thanks.

 

[kazed]

Hi,

Every file ive downloaded lately when i try to extract it keeps telling me that the file is corrupt or destroyed, im starting to think there is something wrong with my windows 7 for some reason.

Been trying to download and install World of warcraft since my cd for WOTLK has gone missing, ive been trying 2 different torrent ones and 1 full client download, i refuse to believe that their all suffering from the same since i talked to the site owner of one of the clients and he didnt have any crc errors with it.

Files i have downloaded maybe 2-3 weeks ago work fine when i try to unpack them, but not recent ones.

So im starting to think, what can cause crc errors within windows to screw up everything i download ?

You have a network interface card issue or you have overclocked your CPU or RAM. Every CRC issue we've encountered has been hardware-based. Please list any and all changes to software and hardware for the last three weeks. Thanks.

I have added another 4 gig of RAM to my computer so it now runs 8 gig DDR3 1600 Mhz , though in unganged mode since the computer refuses to boot up in ganged mode at 1600 mhz, the RAM are made for 1600 Mhz, but possibly have something to do with their voltage.

Haven't oc'd my computer, can try and download a new driver for my network card.

No software changes really other than what was installed when windows got on the machine.

 

[dallascisco]

CRC errors are often caused by bad cables. If you are using an ethernet cable to connect to your network swap it out for a known good.

 

[DeaconFrost]

Have you run Memtest for a long period of time on the system since the new memory has been installed?

 

[kazed]

Havent run any memtest since i put the new memory in, havent had any performance problems , I am running with a different network cable since I changed ISP and needed longer cable to reach the cable modem, had dsl before so I'm sure it has nothing to do with that

 

[kazed]

Have you run Memtest for a long period of time on the system since the new memory has been installed?

Currently on my way home from picking up new car will memory test when I get home
but haven't had any performance issues or crashes of bsod

 

[kazed]

Downclocked my memory to 1333 so they can run ganged mode, will re-download the file i was trying to unrar, if it gives me the same error then im kinda blank, might try a fresh win7 install if in the nearest days, my SSD disk is comming in the door anyhow

 

[kazed]

Deleted the partition, reinstalled windows 7 , downloaded the same file again, same stupid errors -.-

 

[01101001]

Are you using an older version of WinRAR? The reason I ask is because if you attempt to open an archive which was created with a later version (3.xx) using an older version (2.xx) you will get crc errors.

If you are using a current version, have you tried to rebuild the archive using the Repair option? Sometimes that is successful.

 

[zigzag3143]

Deleted the partition, reinstalled windows 7 , downloaded the same file again, same stupid errors -.-

Below you stated that when you changed ISP's you changed to a longer cable. How long?

Is that about the time the crc errors started?

Have you tried downloading in safe mode with networking?

We need much more info

Ken

 

[baarod]

Deleted the partition, reinstalled windows 7 , downloaded the same file again, same stupid errors -.-

Below you stated that when you changed ISP's you changed to a longer cable. How long?

Is that about the time the crc errors started?

Have you tried downloading in safe mode with networking?

We need much more info

Ken

Interesting angle. If this is the solution then we have another issue with the driver offloading of these parity checks....

 

[zzz2496]

Try running your computer with less memory - I think this issue has to do with lower quality signal-to-noise ratio in your memory<->memory controller connection. High density memory installations usually needs ECC/Buffering to minimize the effect of reduced SNR. Anyhow, remove all but one stick, see if it still corrupts...

zzz2496

Edit: Btw, Bittorrent is a resilient protocol, it got hash checks everywhere. It even got a self healing capability built in - But all this has to work on a "healthy" computer.

 

[kazed]

Deleted the partition, reinstalled windows 7 , downloaded the same file again, same stupid errors -.-

Below you stated that when you changed ISP's you changed to a longer cable. How long?

Is that about the time the crc errors started?

Have you tried downloading in safe mode with networking?

We need much more info

Ken

Hi ken , i found out what the error was, the error was in my 8 gig ddr3 was running unganged 1600 mhz which they are made for btw, but i had to download them to 1333 mhz and then run them in ganged mode before the crc errors would stop, that has been my only problems with theese type of memory

 

[baarod]

Deleted the partition, reinstalled windows 7 , downloaded the same file again, same stupid errors -.-

Below you stated that when you changed ISP's you changed to a longer cable. How long?

Is that about the time the crc errors started?

Have you tried downloading in safe mode with networking?

We need much more info

Ken

And hardware-based CRC issues remain the leader as per my post...

Hi ken , i found out what the error was, the error was in my 8 gig ddr3 was running unganged 1600 mhz which they are made for btw, but i had to download them to 1333 mhz and then run them in ganged mode before the crc errors would stop, that has been my only problems with theese type of memory

And hardware remain the prime reason for CRC errors per my previous post...