lunes, 17 de julio de 2017

I let the magic smoke out. PSU/GPU/SLI issue. pc building site custom pc builder

So I was thinking it would be a good time to upgrade my old system- getting a second GTX760 GPU and using SLI instead of shelling out for the next step (a 1080, probably).

I got one off eBay for a good price, noticed the little asterisk in the PCParkpicker list telling me that I'd need additional Power Cables. I checked out a youtube SLI video that showed them using a splitter on the 6 and 8 pin PCIe cables, so I got several of each and tried to make them work. I couldn't get the SLI option to trigger in the NVIDIA control panel, so I kept trying different things- swapping out the SLI link for the other two spots, swapping PCIe slots. Looking at the split PCIe cables, I made a mental note that running them in parallel drop the voltage. I took the cables, made a careful note of which pins were ground, and which were powered with how much. Then I noticed I could plug the two ends of the split into the GPU and PSU, and they would still be connected through the now-empty middle plug. The pinout looked right. I plugged them into the extra modular 8pin out on the PSU... and smoke and sparks came from one of my GPUs. I powered down, restored it to the old configuration with the original GPU (Didn't see sparks on that one), original cables, and powered back on. More sparks and smoke. This time from the Motherboard. I blew the PCI bridge and now no GPUs will work with it.

I have another build on order... I'm going to cannibalize what I can from the old system, but I have a question for anyone out there. Should I trust the Either of those GTX760 GPUs, or should they go into the quarrantine bin?

Here's the old build:

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel - Core i5-3570K 3.4GHz Quad-Core Processor $275.00 @ Amazon
CPU Cooler Cooler Master - RR-H101-22FK-RI 30.0 CFM Sleeve Bearing CPU Cooler -
Motherboard Gigabyte - GA-Z77X-UD3H ATX LGA1155 Motherboard -
Memory G.Skill - Ares Series 16GB (2 x 8GB) DDR3-1866 Memory $115.07 @ Amazon
Storage OCZ - Vertex 3 120GB 3.5" Solid State Drive -
Storage Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive $79.89 @ OutletPC
Storage Western Digital - BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive $117.45 @ SuperBiiz
Video Card MSI - GeForce GTX 760 4GB TWIN FROZR Video Card (2-Way SLI) -
Video Card MSI - GeForce GTX 760 4GB TWIN FROZR Video Card (2-Way SLI) -
Case Cooler Master - CM 590 III (Black) ATX Mid Tower Case $55.98 @ Newegg
Power Supply OCZ - ModXStream Pro 700W 80+ Certified Semi-Modular ATX Power Supply -
Optical Drive Lite-On - iHAS124-14 DVD/CD Writer $15.89 @ OutletPC
Operating System Microsoft - Windows 7 Home Premium SP1 OEM 64-bit $109.99 @ My Choice Software
Monitor Dell - E2414H 24.0" 1920x1080 Monitor -
Monitor Dell - E2414H 24.0" 1920x1080 Monitor -
Monitor Dell - E2414H 24.0" 1920x1080 Monitor -
Keyboard Logitech - G510 Wired Gaming Keyboard -
Mouse Corsair - M65 RGB Wired Laser Mouse -
Speakers Yamaha - NS-SP1800 550W 5.1ch Speakers $149.99 @ Best Buy
External Storage Western Digital - My Book 4TB External Hard Drive $147.89 @ Amazon
Prices include shipping, taxes, rebates, and discounts
Total (before mail-in rebates) $1077.15
Mail-in rebates -$10.00
Total $1067.15
Generated by PCPartPicker 2017-07-17 18:39 EDT-0400
submitted by /u/Smithium
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