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Burning terminals?

post #1 of 5
Thread Starter 
Hi guys, I recently started my first sleeving job with my Silverstone Strider 850. It's been going well, however, I've noticed that when I'm melting the heatshrink onto the ATX terminal sometimes it starts to look a little black and burned. I'm trying my best to not heat it too aggressively, but particularly when trying to do heatshrinkless sleeving I have to heat up the shrink quite a bit. I'm not sure if the black is just burnt chunks of heatshrink or the actual crimp heating up too much - but is it something I should be concerned about?

I'm wondering if my PSU just has low quality terminals, and was thinking of ordering some wire and crimps from Lutro0 and making the custom wiring myself. Either way, I'd like to make sure that this kind of thing isn't actually going to affect the performance of the wires. They're not visible once inside the connector so I don't care about the look, I'm just worried that I'm actually damaging them in some way.

Any advice?
post #2 of 5
The heatshrink's melting temperature is actually higher than the terminal plastic. It will shrink at a lower temp though. When I do mine, I use an open flame from a lighter and do very rapid passes to help avoid this. It may take longer, but it doesn't heat up nearly as much.
 
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Liquid i5
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post #3 of 5
Thread Starter 
Yeah what I meant by terminal was the metal atx crimp that goes inside the plastic connector. That part is what actually seems to be looking a little burnt. Good info about the plastic though!
post #4 of 5
I haven't had that issue with the metal pieces, though to me it sounds like a soot issue, more than it actually being burned. What are you using as a heat source? Lighter or heat gun? If it's a lighter, do you have the shrink/connector in the blue area of the flame, or at the orange tip? If on the tip, move it down and you should avoid that issue entirely.
 
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Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
CPUMotherboardGraphicsRAM
Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
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CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
PowerCaseMouseAudio
Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
CPUMotherboardGraphicsRAM
Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
Hard DriveCoolingCoolingCooling
Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
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XP Pro Seasonic Platinum 860 Fractal Arc Midi 
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Liquid i5
(18 items)
 
Budget BOINCer
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 3930k Asus Rampage IV Gene Micro ATX LGA2011 Diamond Radeon HD 7970 Diamond Radeon HD 7970 
RAMHard DriveCoolingOS
G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1866 Samsung 840 Pro Series 256GB Heatkiller Waterblocks! Windows 8 Pro 
PowerCase
Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
CPUMotherboardGraphicsRAM
Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
CoolingCoolingOSMonitor
CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
PowerCaseMouseAudio
Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
CPUMotherboardGraphicsRAM
Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
Hard DriveCoolingCoolingCooling
Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
OSPowerCase
XP Pro Seasonic Platinum 860 Fractal Arc Midi 
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post #5 of 5
Thread Starter 
I agree I think its likely soot. I try to use the blue part of the flame as much as possible. I've ordered some terminals from Lutro0's store - I'm hoping those will hold up better.
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