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Thread ID: 44399 2004-04-18 00:31:00 Rounded cables (Enquiry out of interest) StevieRay (4739) Press F1
Post ID Timestamp Content User
230187 2004-04-18 10:45:00 weird,the window in my pc just fogged up..... metla (154)
230188 2004-04-18 10:53:00 > weird,the window in my pc just fogged up.....

You definitely need rounded cables Metla, you're overheating! ;-)
Susan B (19)
230189 2004-04-18 12:47:00 So what can we do to stop signal interference in self-rounded IDE cables? hamstar (4)
230190 2004-04-18 13:37:00 Who knows. Thats the advantage of buying rounded ones, they are shielded. KingWave (5517)
230191 2004-04-19 01:59:00 Here is how to make diy ones.....

www.techangel.co.uk
rmcb (164)
230192 2004-04-19 02:33:00 I wonder if the people on that "craft" site ever tested their creation,they have complety ignored the main pitfall of what they just did.

I would sugest before anyone had a go that they have a spare set of cables handy,and seeing as you need a spare set,might as well just get rounded cables and leave hack jobs to the hacks,
metla (154)
230193 2004-04-19 02:37:00 Regardless of what Metla thinks Round cables (as with SATA hard drive) will drop your temperature something likr 10 degrees. My system now never exceeds 30 degrees. With the previous IDE drive temp was usualy in the 40's.
As far as I'm concerned that's all the reason you need to switch to SATA.
Jack
JJJJJ (528)
230194 2004-04-19 02:50:00 JJJJ, haven't you got an entirely new system?

And round cables won't drop your temperature .0000000000000000005 of a degree unless they are routed poorly in the first place.

So logic would dictate that a poorly designed or assembled unit would have temperature issues, the shape of the cable is irrelevant.
metla (154)
230195 2004-04-20 02:19:00 It's quite simple . Better air flow helps heat removal . Cables with less cross section help air flow . When the length of cables is limited, they can't always be routed out of the critical air flow paths in a particular case with a particular motherboard and with disks in particular places .

So small cross section cables are a Good Thing .

I wouldn't make a round IDE cable . . . they're cheap enough .

But if anyone wants to make one, I found a small cross-section one this morning . It's a very short one and obviously was installed with a twist (from a fore-aft socket on the MB to a socket parallel with the front panel) . It's a 40 wire one, with the flat cable split into groups of 5 wires . The centre sectionof tha cable is thus roughly a 5x8 wire rectangle .

Ribbon cable splits very easily --- just be careful not to cut into any wires . :-( An 80 wire cable would be better (in groups of 10 wires) in that each signal wire would have its earth wire beside it-- 40 wire cables don't have an earth for each signal . It's probably a bad idea to strap the bundle tightly . . . perhaps a few rubber bands to hold them loosely in shape .

I have no idea how well such a cable would work at the fast IDE rates . . . PDP11 bus cables were fixed lengths (3 feet,6 feet,10 feet, I think) and often had to be folded to tidy them up (and for better air flow:D) . They wre double cables with about 120 conductor . One of the standard procedures was to interleave an aluminium foil layer ,to maintain the impedance . But they were properly terminated transmission lines and running only about 1 or so MHz . IDE cables were once "terminated" with standard TTL, but I bet CMOS buffers aren't 120ohms . :D
Graham L (2)
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