Posted March 3, 2018 Hey, soo I've got some issues with my new/old hp z420 workstation. I just bought it and slapped in my powercolor hd 7970 to see whats up with it. And no post/display I can't tell which. The graphics card wants an 8 pin and a 6 pin pcie power, and only 2 6 pins are plugged in. I thought it would atleast have display. I have another card I'm going to try, it doesnt need pcie power cables so it should work. I currently don't know what version anything is, so if you have suggestions that would be great. Thank you. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 The GPU needs all the required power cables plugged in order to work. Intel Core i3 2100 @ 3.10GHz - Intel Stock Cooler - Zotac Geforce GT 610 2GB Synergy Edition Intel DH61WW - Corsair® Value Select 4GBx1 DDR3 1600 MHz - Antec BP-300P PSU WD Green 1TB - Seagate 2.5" HDD 1TB - Seagate Barracuda 500GB - Antec X1 E. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 Author Ok I need to upgrade the psu I think, because my nvs 285 fires up fine. Thank you kameshss, so what psu should I get because the motherboard seems to have like a 18 pin power and an 8 pin cpu power Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 3 minutes ago, MrAnchovies said: Ok I need to upgrade the psu I think, because my nvs 285 fires up fine. Thank you kameshss, so what psu should I get because the motherboard seems to have like a 18 pin power and an 8 pin cpu power I found some 24 pin to 18 pin converters on Amazon. But not sure how reliable they're. I think it'll work. Research on this https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/HP-z420-motherboard-18-pin-layout/td-p/5835021 Also, Does your current PSU have molex connectors? Because, there are converters for Molex to PCIe power like this https://www.amazon.com/Cable-Matters-2-Pack-8-Pin-Molex/dp/B01DV1Z428/ref=sr_1_3?ie=UTF8&qid=1520059990&sr=8-3&keywords=molex+to+pcie Check it out first. Intel Core i3 2100 @ 3.10GHz - Intel Stock Cooler - Zotac Geforce GT 610 2GB Synergy Edition Intel DH61WW - Corsair® Value Select 4GBx1 DDR3 1600 MHz - Antec BP-300P PSU WD Green 1TB - Seagate 2.5" HDD 1TB - Seagate Barracuda 500GB - Antec X1 E. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 Author My power supply has no molex so I need a new power supply, I assume. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 That shit is proprietary boiiii , but in all seriousness idk if the adapter will work and I would really just suggest to get a different gpu with two 6 pins or even get adapters from a 6 pin to 8 pin rather than a whole new psu. Rig Specs: Ryzen 7 1700 3.9ghz @1.33125v Cinebench Scores Best:1750cb Average: 1735cb Asrock X370 SLI/AC SOLD Evga GTX 560 Ti 1gb Just got a EVGA GTX 780 HydroCopper G.Skill Ripjaws V 2x8gb 2400mhz oc’d to 2666mhz (bought when ram was still cheap ) Corsair RM850 Enthoo Pro M Acrylic Changing to a Inwin 301 soon Custom CPU Loop (watercooling is boring to me right now so I want to go back to air cooling and do like one more WC Loop in a Inwin 301) Intel 256gb SSD Kingston 240gb SSD HyperX 90gb SSD Not So Shitbox v3 Specs: I7 2600k oc'd to 4.7 @ 1.4ish (will do more when I get a better cooler) MSI P67-GD55 Sold to fund my gpu Gigabyte Windforce HD 6950 Team Elite Plus 8gb DDR3 (1 stick) @ 1600mhz Thermaltake Toughpower 750 watt Cooler Master T4 Enthoo Luxe Kingston 120gb SSD WD Black 1tb HDD Laptop: Asus GL552VW-DH71 i7 6700HQ 2x8gb DDR4 1tb hard drive GTX 960m 15in IPS 1080p display Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 Author 1 minute ago, This kid builds pc said: That shit is proprietary boiiii , but in all seriousness idk if the adapter will work and I would really just suggest to get a different gpu with two 6 pins or even get adapters from a 6 pin to 8 pin rather than a whole new psu. Thats what i was just looking into Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 3, 2018 Author Ok I ordered a 6 pin to 8 pin adapter I'll tell you guys how it worked Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 4, 2018 Hi got a z420 as well. Gtx 1080ti connected. I use a molex to 8 pin which has worked fine around 4 years. My 780 worked fine on it as well. I use it usually for heavy rendering sessions. Sometimes a few days up to a week or so. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted March 17, 2018 Author I received the adapter and it seems to be working fine Thanks for the help But I've run into another issue where only 3 of my sata ports work the 2 sata III and the top sata II port I don't know if you guys can help out with that but I figured I'd try Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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