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[MPC] Is Your SATA Cable Slowing Down Your Data Transfers? Max PC Investigates - Page 3

post #21 of 58
Quote:
Originally Posted by DesertRat View Post

Their claim about them being tough is pretty wrong tho. I've lost count of how many bad SATA cables I've run across, usually caused by a single bend. In fact the ones in my rig right now don't work unless at the angles they are now. I've seen this issue w/ other's computers as well. A bad SATA cable can cause all sorts of painful issues. Also EMI can be a factor it seems as not all cables appear to be made equally. I read somewhere the red foxconn and Intel brand cables, even though rather basic looking, are the best for EMI shielding and robustness.
edit: also, they're not cheap. If you only want 1 or 2 cables, expect to pay a min of around $15 due to shipping and tax. If buying in bulkier quanities, they are indeed cheap. I've been looking to replace mine, and even off of amazon, newegg, etc, after shipping and sometimes tax, it's a min of $15 for 2 fricking cables. At least it's not as bad as best buy, freaking $24.99 for 2 cables...

Would this actually manifest in detectable errors, i.e. visible in SMART data? I mean I've dealt with CRC errors like anyone else (and that's why I've gone to right-angle connectors in my A70 case)...but I mean apart from that, my monoprice cables seem to be a-ok at this point.
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post #22 of 58
Fake. It's like the whole HDMI cable crap. With digital signals performance is not effected by the quality of the cable... latency could possibly be effected, but as long as the signal successfully gets from A to B transfer rates are not effected. YOU CAN have a cable that is too long though, because of the resistance of copper data could potentially be lost... that would result in a transfer failure though, not a slow down.
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post #23 of 58
I know my SATA cables don't slow me down 'cuz I paid $49.99 a piece for these beauties at Best Buy when I was there asking Geek Squad to install more toolbars for me.
 
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post #24 of 58
Quote:
Originally Posted by JY View Post

Fake. It's like the whole HDMI cable crap. With digital signals performance is not effected by the quality of the cable... latency could possibly be effected, but as long as the signal successfully gets from A to B transfer rates are not effected. YOU CAN have a cable that is too long though, because of the resistance of copper data could potentially be lost... that would result in a transfer failure though, not a slow down.

Digital signals are still analog signals, and ARE affected by cabling. Most of the time those effects are just mitigated by error detection/correction code (i.e. parity) embedded in the signal.
Edited by Manyak - 11/16/11 at 6:48am
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post #25 of 58
Quote:
Originally Posted by Manyak View Post

Digital signals are still analog signals, and ARE affected by cabling. Most of the time those effects are just mitigated by error detection/correction code (i.e. parity) embedded in the signal.

And a lot of times, I'm not even sure if there actually is any FEC applied. There's no FEC on the video data information in HDMI (there is on the control info and I think audio), none in S/PDIF I think, none in SATA I think, etc.

The SATA 8b/10b encoding is just to ensure a reasonable number of 0->1 and 1->0 transitions consistently and get a more consistent DC value no matter what is being transmitted. There's no error correction being done for that.

It's just with wired digital transmissions at these low distances, errors occur with very very low probability unless something wacky is up. If there's a bit flipped and a CRC fails somewhere, then an error is detected and the receiver can request a retransmission somewhere.
post #26 of 58
Quote:
Originally Posted by 8ight View Post

I know my SATA cables don't slow me down 'cuz I paid $49.99 a piece for these beauties at Best Buy when I was there asking Geek Squad to install more toolbars for me.

lachen.giflachen.gif
post #27 of 58
Quote:
Originally Posted by 8ight View Post

I know my SATA cables don't slow me down 'cuz I paid $49.99 a piece for these beauties at Best Buy when I was there asking Geek Squad to install more toolbars for me.

Now that is a riot.
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post #28 of 58
[
Quote:
Originally Posted by darthspartan View Post

I can see how a really crappy cable just wont work but its digital so as long as it works it runs at full speed its all 1's and 0's people.
There is ECC and I believe SATA will resend if bad packet..... so SATA can run at lower than full speed.
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post #29 of 58
Quote:
Originally Posted by kikkO View Post

Can you guys imagine if Monster Cables made SATA cables?

"MONSTER 24k GOLD Plated, magnetically shielded, 12 gauge, kevlar sleeved ULTRA cable! For the low low price of $100 per inch!"

lmao this is exactly what I was thinking..
post #30 of 58
Quote:
Originally Posted by Riou View Post

I have gotten into arguments with people by saying the SATA cables are all the same. tongue.gif Cables are so cheap that if one is defective/under-performing, just throw it away and install a new one. Well of course if the cable is extremely long, then it may not be reliable. (108 inch cable = lol)

I remember reading in my MB booklet. It stated the 6GB/s and 3/1.5 GB/s SATAII/III are no different at all, except how they look. Strange stuff.
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