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Downgrading from 1000w and overclocking. Looking for opinions.

Newtonslies
  • 39 months ago

Here is my current build.

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i7-6850K 3.6GHz 6-Core Processor $555.00 @ Amazon
CPU Cooler Corsair H100i v2 70.7 CFM Liquid CPU Cooler $96.99 @ Jet
Motherboard MSI X99A GAMING PRO CARBON ATX LGA2011-3 Motherboard $299.99 @ B&H
Memory Corsair Dominator Platinum Blackout 32GB (4 x 8GB) DDR4-3200 Memory $329.99 @ Corsair
Storage Samsung 960 Pro 2.0TB M.2-2280 Solid State Drive $1299.99 @ B&H
Storage Western Digital BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive $117.99 @ SuperBiiz
Video Card MSI GeForce GTX 1070 8GB Video Card (2-Way SLI) $419.99 @ Newegg
Video Card MSI GeForce GTX 1070 8GB Video Card (2-Way SLI) $419.99 @ Newegg
Case Corsair 750D Airflow Edition ATX Full Tower Case $149.49 @ Newegg
Power Supply EVGA 1000W 80+ Gold Certified Fully-Modular ATX Power Supply $119.99 @ Jet
Operating System Microsoft Windows 10 Home OEM 64-bit $88.58 @ OutletPC
Case Fan NZXT Aer RGB120 (3-pack) 61.4 CFM 120mm Fans $74.99 @ NCIX US
Case Fan NZXT Aer RGB140 (3-pack) 71.6 CFM 140mm Fans $84.99 @ SuperBiiz
Monitor Acer XB271HU bmiprz 27.0" 2560x1440 165Hz Monitor $799.99 @ B&H
Keyboard Razer BlackWidow Ultimate 2016 Wired Standard Keyboard $92.99 @ B&H
Mouse Razer DeathAdder 2013 Wired Optical Mouse $49.98 @ OutletPC
Prices include shipping, taxes, rebates, and discounts
Total (before mail-in rebates) $5010.93
Mail-in rebates -$10.00
Total $5000.93
Generated by PCPartPicker 2017-01-08 18:02 EST-0500

This is my first build so I know I made some mistakes. I purchased the power supply with no thought at all and now I'm having second thoughts. I've been doing some research and I've purchased a EVGA superNOVA P2 850W to replace it. I's this going to be enough if I start overclocking the GPU's and CPU? PCPartPicker tells me I use ~150W-650W depending on load before overclocking.

Comments

  • 39 months ago
  • 2 points

Why purcahse another PSU? You made another mistake. While it is certainly overkill but so is a 850W PSU but overkill isn't a bad thing. A 650W PSU would be plenty for your build and overclocking. Just keep whatever PSU you have on hand right now, if that is the G1 just cancel the P2. If its the P2 just keep it.

  • 39 months ago
  • 1 point

Damn, really 650? I did some reading and was under the impression that overclocking could add to your wattage draw from the wall. My reasoning on the purchase was purely that I could get the 850W platinum rated for $20 less than the gold and I'm still within the return window for the gold.

  • 39 months ago
  • 1 point

Damn, really 650? I did some reading and was under the impression that overclocking could add to your wattage draw from the wall.

Overclocking will increase your power draw but 650W would still be plenty for your build even with overclocking. If you are willing to return the PSU I would return some other stuff like the CPU since for your build you will see ZERO benefit over the i7 6800K besides another ~$200. You could get a HDD for about $60 cheaper. Assuming this is for gaming you could save about $500 on the SSD. You could also save about $200 on the RAM. With the $900 saved you could get two GTX 1080's if you also returned the GTX 1070's and still end up saving money. You could also return the motherboard too and get a better CPU for gaming.

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i7-7700K 4.2GHz Quad-Core Processor $349.89 @ B&H
CPU Cooler Corsair H100i v2 70.7 CFM Liquid CPU Cooler $96.99 @ Jet
Motherboard MSI Z270 GAMING M7 ATX LGA1151 Motherboard $249.99 @ B&H
Memory G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-3200 Memory $105.89 @ OutletPC
Storage Crucial MX300 2.0TB 2.5" Solid State Drive $499.99 @ Jet
Storage Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive $68.89 @ OutletPC
Video Card Gigabyte GeForce GTX 1080 8GB G1 Gaming Video Card (2-Way SLI) $599.99 @ Amazon
Video Card Gigabyte GeForce GTX 1080 8GB G1 Gaming Video Card (2-Way SLI) $599.99 @ Amazon
Case Corsair 750D Airflow Edition ATX Full Tower Case $149.49 @ Amazon
Power Supply Corsair RMx 750W 80+ Gold Certified Fully-Modular ATX Power Supply $99.99 @ Newegg
Operating System Microsoft Windows 10 Home OEM 64-bit $88.58 @ OutletPC
Case Fan NZXT Aer RGB120 (3-pack) 61.4 CFM 120mm Fans $74.99 @ SuperBiiz
Case Fan NZXT Aer RGB140 (3-pack) 71.6 CFM 140mm Fans $84.99 @ SuperBiiz
Monitor Acer XB271HU bmiprz 27.0" 2560x1440 165Hz Monitor $799.99 @ B&H
Keyboard Razer BlackWidow Ultimate 2016 Wired Standard Keyboard $92.99 @ Amazon
Mouse Razer DeathAdder 2013 Wired Optical Mouse $49.98 @ OutletPC
Prices include shipping, taxes, rebates, and discounts
Total (before mail-in rebates) $4022.62
Mail-in rebates -$10.00
Total $4012.62
Generated by PCPartPicker 2017-01-08 19:02 EST-0500

I saved about 1K and got better GPU's.

  • 39 months ago
  • 1 point

Ya, I use the computer for more than gaming as well. I do a lot of computational modeling with LabVIEW, Matlab, and SOLIDWORKS. The extra cores, quad channel memory, m.2 sequential write come in handy with larger computations. As for the 1070's, I bought the first one when the 1070/1080's first hit the market and 1070's were much cheaper than 1080's so I was kind of locked into the 1070sli unless I wanted to get 2 new cards and just eat the 1070 that's way out of return range. But thanks for the advice.

  • 39 months ago
  • 1 point

Well I would at least return the HDD since you can get the same performance for half of the black price and you are paying extra for PCI lanes you don't need. You should save around ~$250 and you will get zero performance lost.

  • 39 months ago
  • 2 points

Yes, even 550 watts will do it with some overclocking. I'd probably go 650 watts though because at this point, i'm not too sure how accurate these calculators are.

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