• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Will a 20 pin connector function ok in a 24 pin mobo?

Joined
Apr 8, 2008
Messages
1,034 (0.29/day)
Likes
167
Location
Scotland
Processor Phenom II X4 B50 @ 3.4Ghz
Motherboard Gigabyte GA MA790XT-UD4P
Cooling Vendetta 2, several case fans
Memory 8GB Geil Ripjaws 1666Mhz
Video Card(s) Powercolor 5850 1GB
Storage 1TB Samsung F1
Display(s) LG 23" W2361V TFT Widescreen
Case Antec 300
Audio Device(s) X-Fi Xtreme Music
Power Supply Antec HCG 750W
Software Windows 7 Pro 64bit
#1
So my friend has built a pc for his friend using some spare parts and bits that i bought. The power supply just has a 20 pin connector and while the pc seems to work fine i'm not sure if it will function properly, especially if overclocked which was the plan. Can anybody confirm whether this will effect anything? The PSU is about 500w with 28a on the 12v.
 
Joined
Oct 6, 2005
Messages
10,241 (2.28/day)
Likes
2,107
Location
Granite Bay, CA
System Name Big Devil
Processor Intel Core i5-2500K
Motherboard ECS P67H2-A2
Cooling XSPC Rasa | Black Ice GT Stealth 240 | XSPC X2O 750 | 2x ACF12PWM | PrimoChill White 7/16"
Memory 2x4GB Corsair Vengeance LP Arctic White 1600MHz CL9
Video Card(s) EVGA GTX 780 ACX SC
Storage Intel 520 Series 180GB + WD 1TB Blue
Display(s) HP ZR30W 30" 2650x1600 IPS
Case Corsair 600T SE
Audio Device(s) Xonar Essence STX | Sennheisser PC350 "Hero" Modded | Corsair SP2500
Power Supply ABS SL 1050W (Enermax Revolution Rebadge)
Software Windows 8.1 x64 Pro w/ Media Center
Benchmark Scores Ducky Year of the Snake w/ Cherry MX Browns & Year of the Tiger PBT Keycaps | Razer Deathadder Black
#2
If he wants to overclock, then he's much better off with a 24-pin PSU. I would not recommend overclocking without him buying a 24-pin quality PSU.
 
Joined
Apr 8, 2008
Messages
1,034 (0.29/day)
Likes
167
Location
Scotland
Processor Phenom II X4 B50 @ 3.4Ghz
Motherboard Gigabyte GA MA790XT-UD4P
Cooling Vendetta 2, several case fans
Memory 8GB Geil Ripjaws 1666Mhz
Video Card(s) Powercolor 5850 1GB
Storage 1TB Samsung F1
Display(s) LG 23" W2361V TFT Widescreen
Case Antec 300
Audio Device(s) X-Fi Xtreme Music
Power Supply Antec HCG 750W
Software Windows 7 Pro 64bit
#3
It would only be a mild overclock, hes on the stock cooler. I know the chip can do 2.7ghz on stock volts on the stock cooler. Would it be ok for that?
 

brandonwh64

Addicted to Bacon and StarCrunches!!!
Joined
Sep 6, 2009
Messages
19,527 (6.39/day)
Likes
6,950
Location
Chatsworth, GA
System Name The StarCrunch Defender! | X58 Cruncher!
Processor I7 6700K @ STOCK | Intel I7-920
Motherboard Gigabyte Z170X-UD5 | Alienware MS-7543 X58
Cooling Corsair A70 Push/Pull | Corsair H50
Memory Crucial Ballistix DDR4 2400 MHz | Pereema 3x2GB DDR3
Video Card(s) Gigabyte Gaming G1 GTX 1070 | Gigabyte 7970 3GB
Storage 2x Samsung Pro 256GB M.2 SSD's in Raid 0 | 4TB Western Digital SATA drive
Display(s) ViewSonic VG2227wm 1080P | OLD viewsonics
Case NZXT Tempest 410 Elite | NZXT Source 210
Audio Device(s) Onboard
Power Supply Corsair 750TX | Enermax Liberty 500W
Mouse MX518 | MX502
Keyboard TESORO Mechanical | ANZO Mechanical
Software Windows 10 Pro on both
#4
if the motherboard REQUIRES a 24pin you can get an adapter like i did on one of my friends builds
 
Joined
Oct 6, 2005
Messages
10,241 (2.28/day)
Likes
2,107
Location
Granite Bay, CA
System Name Big Devil
Processor Intel Core i5-2500K
Motherboard ECS P67H2-A2
Cooling XSPC Rasa | Black Ice GT Stealth 240 | XSPC X2O 750 | 2x ACF12PWM | PrimoChill White 7/16"
Memory 2x4GB Corsair Vengeance LP Arctic White 1600MHz CL9
Video Card(s) EVGA GTX 780 ACX SC
Storage Intel 520 Series 180GB + WD 1TB Blue
Display(s) HP ZR30W 30" 2650x1600 IPS
Case Corsair 600T SE
Audio Device(s) Xonar Essence STX | Sennheisser PC350 "Hero" Modded | Corsair SP2500
Power Supply ABS SL 1050W (Enermax Revolution Rebadge)
Software Windows 8.1 x64 Pro w/ Media Center
Benchmark Scores Ducky Year of the Snake w/ Cherry MX Browns & Year of the Tiger PBT Keycaps | Razer Deathadder Black
#5
I have a feeling he's going to notice intermittent issues (random restarts, blue screens, etc.) before he physically fries something. If he decides to go for it with what he's got, have him keep a close eye on vital signs.

I'll let somebody else chime in on this, though. The exact make and model of the PSU, Motherboard, CPU, and maybe the graphics card as well could help.

http://extreme.outervision.com/psucalculatorlite.jsp

Have him fill that out to see how many watts he needs from his PSU, too.
 
Joined
Apr 8, 2008
Messages
1,034 (0.29/day)
Likes
167
Location
Scotland
Processor Phenom II X4 B50 @ 3.4Ghz
Motherboard Gigabyte GA MA790XT-UD4P
Cooling Vendetta 2, several case fans
Memory 8GB Geil Ripjaws 1666Mhz
Video Card(s) Powercolor 5850 1GB
Storage 1TB Samsung F1
Display(s) LG 23" W2361V TFT Widescreen
Case Antec 300
Audio Device(s) X-Fi Xtreme Music
Power Supply Antec HCG 750W
Software Windows 7 Pro 64bit
Joined
Apr 8, 2008
Messages
1,034 (0.29/day)
Likes
167
Location
Scotland
Processor Phenom II X4 B50 @ 3.4Ghz
Motherboard Gigabyte GA MA790XT-UD4P
Cooling Vendetta 2, several case fans
Memory 8GB Geil Ripjaws 1666Mhz
Video Card(s) Powercolor 5850 1GB
Storage 1TB Samsung F1
Display(s) LG 23" W2361V TFT Widescreen
Case Antec 300
Audio Device(s) X-Fi Xtreme Music
Power Supply Antec HCG 750W
Software Windows 7 Pro 64bit
#7
Would sort of help if i told you his system (sry forgot lol)

msi p35 neo2
e6400 with stock cooler
x1950gt
2gb ram
1 hdd, 1 dvd, few fans

psu calculator says 270w