Help Geeks! New Rig, Corrupt File Diagnosis!

I've just become a statistic! On friday evening i purchased the parts for a new rig, I will outline below.

Intel Core 2 Duo E8400 3 GHz, 45nm
4GB OCZ Platinum DDR2ddr2 800 (4x1024)
Asus P5Q-E Socket 775 Intel P45 + ICH10R
Dual 7200RPM Seagate Barracudas (in RAID0)
EVGA Geforce 8800GT

Initially, windows installed with no problems (I have built a slipstreamed copy with the ICH10R drivers included so it can detect the raid0 config). Once windows was installed, all drivers installed with no trouble. At this point I went out to my network file share and began copying over my photos, movies etc. This was where the horror began. Every single file I copied from the network had CRC errors, photos were showing abberations etc.

So, I think it's the RAM.
memtest86 runs for 10 hours with no problems at all.

So, I think processor.
I ran Prime for 3 hours with no failure on the setting that uses the medium amount of ram (128mb). No errors, interestingly if I run it on the setting that uses the most ram (1792MB i believe) it crashes instantly.

I think harddrive. So I swap in a known working good sata2 drive from my old rig. Same problem with CRC errors after file copies from network and sometimes even with large downloads from the web.

So I think motherboard. I exchange for a new one of same type. The problem is still occurring. While I was at it, I exchanged my EVGA video card for a better one, on a whim, Zotac GeForce 9800GTX 512MB.

So, now I have a PC that boots fine, runs every burn in test I can think of seemingly fine(Except for the odd prime max memory test), but corrupts files that I copy from the network. I'd assume it was a problem with the router, but my other computer does not show the same problem. Just for kicks I plugged in a ieee1394 connection instead of ethernet and performed the same tests and the problem still occurs.

Could I have a bad CPU? Or perhaps a bad L1/L2 cache? Heat wise, the processor is running between 25-28 idle, 35-42 under heavy load. No BSODs, no crashes.

Can anyone offer me a next step? I don't have another intel 775 processor to test with unfortunately.

Thanks & Regards,
Chris

 

Have you got another operating system you can use (perhaps from a CD) to try to copy some files over your network?

 

Firstly welcome to MG.

Now I know you said you have tested the RAM but if you remove 3 of the 4Gb that you have, does the problem still occur? In other words have you tried with the minimum amount of RAM you can fit and then added another chip and so on to see if and when the fault still occurs.

 

Good call! Maybe i'll throw together a linux bootable tonight and give it a shot. It would at least rule out a driver problem, eh?

Thanks stu, any other ideas folks?

 

Yarg, will do as well. Thank you. Also, thanks for the welcome!

 

Scylla, all NTFS.