• We've upgraded our forums. Please post any issues/requests in this thread.

can i plug a 3 pin or 4 pin into a 5 pin connector on the motherboard?

Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#1
hello everyone, yesterday i made a thread about my cpu fan being broke so i went and got a replacement fan today from my brothers place problem is its a 3 pin connector and the connector on the motherboard is a 5 pin. so would i be ok if i plugged the 3 pin into the 5 pin slot?

and i also have a another fan that would work its 4 pin though. would that work in a 5 pin if the 3 pin dont?

and one last thing the cpu fan had a broken blade so i broke the 2 more blades off to balance it out. would i be able to use it if the other fans i have dont work?

thanks in advance.
 
Joined
Jun 4, 2011
Messages
3,051 (1.28/day)
Likes
1,274
System Name The SwagMachine / The Sister
Processor Core i5 3570K @5.2ghz 1.3V/ 1100T
Motherboard ASUS P8Z77-V / ASUS M5A99X EVO
Cooling Phanteks PH TC14PE / Corsair H40
Memory M379B5273DH0-YK0 2X4GB + PVI316G213C1QK 2X4GB / 2x4GB Patriot 2133
Video Card(s) PNY 780Ti /Windforce 7950
Storage 2xSamsung 840 EVO 250gb+WD10EZEX + WD30EZRX/ 1x WD1500 Black
Display(s) AOC Q2963PM+Acer S200HL / Acer S200L+ LG 22LD350
Case Fractal Define R4 / NZXT Trinity
Audio Device(s) Asus Xonar DG / Asus Xonar DG
Power Supply Seasonic 750X / ROSEWILL RG630-S12 630W R
Mouse Razer Deathadder Chroma / Roccat Kone+
Keyboard Razer Blackwidow 2013 Stealth / Roccat Isku
Software Windows 8.1 Pro / Windows 7 Ultimate
Benchmark Scores one time I scored a 3 on 3dmark 11
#2
Yes
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#3
thanks for the quick response, but yes to what? plugging a 3 or 4 pin to a 5 pin connection or using my original fan with 3 less blades?
 
Joined
Jun 4, 2011
Messages
3,051 (1.28/day)
Likes
1,274
System Name The SwagMachine / The Sister
Processor Core i5 3570K @5.2ghz 1.3V/ 1100T
Motherboard ASUS P8Z77-V / ASUS M5A99X EVO
Cooling Phanteks PH TC14PE / Corsair H40
Memory M379B5273DH0-YK0 2X4GB + PVI316G213C1QK 2X4GB / 2x4GB Patriot 2133
Video Card(s) PNY 780Ti /Windforce 7950
Storage 2xSamsung 840 EVO 250gb+WD10EZEX + WD30EZRX/ 1x WD1500 Black
Display(s) AOC Q2963PM+Acer S200HL / Acer S200L+ LG 22LD350
Case Fractal Define R4 / NZXT Trinity
Audio Device(s) Asus Xonar DG / Asus Xonar DG
Power Supply Seasonic 750X / ROSEWILL RG630-S12 630W R
Mouse Razer Deathadder Chroma / Roccat Kone+
Keyboard Razer Blackwidow 2013 Stealth / Roccat Isku
Software Windows 8.1 Pro / Windows 7 Ultimate
Benchmark Scores one time I scored a 3 on 3dmark 11
#4
thanks for the quick response, but yes to what? plugging a 3 or 4 pin to a 5 pin connection or using my original fan with 3 less blades?
Yes
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#5
yes to all i assume? if i have to use the original fan will that decrease airflow? or would it be fine?
 
Joined
Sep 15, 2008
Messages
1,050 (0.31/day)
Likes
132
Location
Pikeville NC
System Name In the works
Processor 4670k
Motherboard ASUS Z87
Cooling 5x120mm
Memory 8GB Sniper Gskill 1833
Video Card(s) MSI 970 Gaming
Storage 2x 240gb SSD's + 1TB seagate
Display(s) 27" Acer 1920x1080
Case Corsair Carbide 200R
Power Supply OCZ Power 600W Modular
Keyboard Corsait K70 with red switches
Software Win10
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#7
ok so will i be safe if i have to use the original fan with 3 less blades? the reason im asking is because the other two fans may not fit on the heatsink. i wont know for sure until i get home.
 

newtekie1

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
24,277 (5.51/day)
Likes
10,367
Location
Indiana, USA
Processor Intel Core i7 4790K@4.6GHz
Motherboard AsRock Z97 Extreme6
Cooling Corsair H100i
Memory 32GB Corsair DDR3-1866 9-10-9-27
Video Card(s) ASUS GTX960 STRIX @ 1500/1900
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Corsair 650D Black
Audio Device(s) Onboard is good enough for me
Power Supply Corsair HX850
Software Windows 10 Pro x64
#8
5-Pin...I've never seen a 5-Pin fan connector on a motherboard. What board is this?
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#9
Joined
Aug 11, 2011
Messages
4,335 (1.87/day)
Likes
3,020
Location
Mexico
System Name STEAMBOX | GAMECUBE | EQC (Everyday Quad Core)
Processor i5 4590@3.7Ghz |i7 3770K@4Ghz -|- Athlon 5350@2.52Ghz
Motherboard GA-B85N PHOENIX | Asrock Z77E-ITX | Asus AM1I-A
Cooling Stock | Antec Kuhler 620 | Reeven Vanxie
Memory 2x4GB ADATA XPG 1600Mhz | 2x4GB Kingston 1866Mhz -|- 2x4GB Crucial Ballistix@1920Mhz
Video Card(s) RX 480 Nitro | Sapphire RX 480 w/Accelero Mono Plus | HD 8400 @ 720Mhz (IGP)
Storage LiteON 128GB mSATA+3TB Seagate | Seagate 1TBxSamung 64GB SSD (Intel RST) | Kingston v300 240GB
Display(s) Daewoo 49" 1080p | ASUS PA248Q 1920x1200 IPS
Case Corsair 250D | CoolerMaster Elite 110 | Acteck Fiji
Audio Device(s) Onboard
Power Supply Seasonic SS-660XP2 | Silverstone SFX-450 | 200w mini FLEX PSU
Software Windows 10 64bit
#10

newtekie1

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
24,277 (5.51/day)
Likes
10,367
Location
Indiana, USA
Processor Intel Core i7 4790K@4.6GHz
Motherboard AsRock Z97 Extreme6
Cooling Corsair H100i
Memory 32GB Corsair DDR3-1866 9-10-9-27
Video Card(s) ASUS GTX960 STRIX @ 1500/1900
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Corsair 650D Black
Audio Device(s) Onboard is good enough for me
Power Supply Corsair HX850
Software Windows 10 Pro x64
#11
Interesting, I just took a look, and it seems the extra pin is a second ground, and HP just bridges the Pin1 to Pin5, bridging the first ground to the second ground. Kind of odd.

However, yes it does appear that a standard 3-pin or 4-pin should work with a problem. The only problem I can see is it looks like the little plastic blade on the fan connector on the motherboard might be too wide, preventing a smaller connector from being attached. But you should be able to bend that tab out of the way(or break it off, just remember which way the fan is supposed to go on the header).

It's like this one: http://www.redplanettrading.com/Dell-P2780-Y5299-Y5299-Optiplex-755-760-780-Desktop-Case-Fan.html


OP, no, the 3 and 4 pin fans you've got won't fit in the connector. You'll need a fan that uses a molex connector, you can plug them directly to the power supply.
Those are Dell fans, HP uses a more standard connector, be it with an extra ground pin for some reason. See here.

And the pinout seems to be the same as a normal fan as well, unlike the Dell ones that are wired backwards.
 
Joined
Aug 11, 2011
Messages
4,335 (1.87/day)
Likes
3,020
Location
Mexico
System Name STEAMBOX | GAMECUBE | EQC (Everyday Quad Core)
Processor i5 4590@3.7Ghz |i7 3770K@4Ghz -|- Athlon 5350@2.52Ghz
Motherboard GA-B85N PHOENIX | Asrock Z77E-ITX | Asus AM1I-A
Cooling Stock | Antec Kuhler 620 | Reeven Vanxie
Memory 2x4GB ADATA XPG 1600Mhz | 2x4GB Kingston 1866Mhz -|- 2x4GB Crucial Ballistix@1920Mhz
Video Card(s) RX 480 Nitro | Sapphire RX 480 w/Accelero Mono Plus | HD 8400 @ 720Mhz (IGP)
Storage LiteON 128GB mSATA+3TB Seagate | Seagate 1TBxSamung 64GB SSD (Intel RST) | Kingston v300 240GB
Display(s) Daewoo 49" 1080p | ASUS PA248Q 1920x1200 IPS
Case Corsair 250D | CoolerMaster Elite 110 | Acteck Fiji
Audio Device(s) Onboard
Power Supply Seasonic SS-660XP2 | Silverstone SFX-450 | 200w mini FLEX PSU
Software Windows 10 64bit
#12
The pin spacing is different IIRC.
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#13
Ok so could i use the original fan until i get a replacement? With 3 less blades?
 
Joined
Aug 11, 2011
Messages
4,335 (1.87/day)
Likes
3,020
Location
Mexico
System Name STEAMBOX | GAMECUBE | EQC (Everyday Quad Core)
Processor i5 4590@3.7Ghz |i7 3770K@4Ghz -|- Athlon 5350@2.52Ghz
Motherboard GA-B85N PHOENIX | Asrock Z77E-ITX | Asus AM1I-A
Cooling Stock | Antec Kuhler 620 | Reeven Vanxie
Memory 2x4GB ADATA XPG 1600Mhz | 2x4GB Kingston 1866Mhz -|- 2x4GB Crucial Ballistix@1920Mhz
Video Card(s) RX 480 Nitro | Sapphire RX 480 w/Accelero Mono Plus | HD 8400 @ 720Mhz (IGP)
Storage LiteON 128GB mSATA+3TB Seagate | Seagate 1TBxSamung 64GB SSD (Intel RST) | Kingston v300 240GB
Display(s) Daewoo 49" 1080p | ASUS PA248Q 1920x1200 IPS
Case Corsair 250D | CoolerMaster Elite 110 | Acteck Fiji
Audio Device(s) Onboard
Power Supply Seasonic SS-660XP2 | Silverstone SFX-450 | 200w mini FLEX PSU
Software Windows 10 64bit
#14
Those are Dell fans, HP uses a more standard connector, be it with an extra ground pin for some reason. See here.

And the pinout seems to be the same as a normal fan as well, unlike the Dell ones that are wired backwards.
ah, ok. I just read "5 pin fan" and inmediately thought of those Dell fans. Have never handled an hp server (it shows, right?). :eek:

OP, disregard my comments. newtekie is tackling this one :respect:
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#15
Ok thanks but is it possible to use the old fan?
 

newtekie1

Semi-Retired Folder
Joined
Nov 22, 2005
Messages
24,277 (5.51/day)
Likes
10,367
Location
Indiana, USA
Processor Intel Core i7 4790K@4.6GHz
Motherboard AsRock Z97 Extreme6
Cooling Corsair H100i
Memory 32GB Corsair DDR3-1866 9-10-9-27
Video Card(s) ASUS GTX960 STRIX @ 1500/1900
Storage 480GB Crucial MX200 + 2TB Seagate Solid State Hybrid Drive with 128GB OCZ Synapse SSD Cache
Display(s) QNIX QX2710 1440p@120Hz
Case Corsair 650D Black
Audio Device(s) Onboard is good enough for me
Power Supply Corsair HX850
Software Windows 10 Pro x64
#16
It is possible, if it is balanced enough, but I would only use it as a last resort. Try the other fans first.

ah, ok. I just read "5 pin fan" and inmediately thought of those Dell fans. Have never handled an hp server (it shows, right?). :eek:

OP, disregard my comments. newtekie is tackling this one :respect:
It's cool, when I saw the thread I actually through of those Dell fans too. I had to look them up as I've never seen them before either.:eek:
 
Joined
Feb 12, 2006
Messages
2,289 (0.53/day)
Likes
410
System Name MONEY PIT
Processor i7-3770K @ 4800 1.20v batch #3231B415 Delided
Motherboard ASrock Z77 OC Formula w onboard waterblocks
Cooling Apogee HD, MCP655,rad MCR320-XP,Micro Rev2 res
Memory G,skill Trident X F3-2400C10D-16GTX
Video Card(s) EVGA GTX 980 Ti Classified with EK nickel/acetal waterblock installed
Storage 2x120gig Wildfire raid0 2x120gig VERTEX3 raid0
Display(s) 3/ Samsung2343bwx + 65in LG 4K
Case NZXT Phantom White w/red
Audio Device(s) ReCon3d fatal1ty pro, Logitech z906 THX
Power Supply corsair AX860i
Mouse Rat7
Software 64bit ++++ win 10
#17
why not just move the pins from the old 5 pin plug to the new fan just make sure you get the asignment right
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#18
So if i would have to use the old fan as as a last resort would it provide adaquite airflow?
 
Joined
Sep 15, 2008
Messages
1,050 (0.31/day)
Likes
132
Location
Pikeville NC
System Name In the works
Processor 4670k
Motherboard ASUS Z87
Cooling 5x120mm
Memory 8GB Sniper Gskill 1833
Video Card(s) MSI 970 Gaming
Storage 2x 240gb SSD's + 1TB seagate
Display(s) 27" Acer 1920x1080
Case Corsair Carbide 200R
Power Supply OCZ Power 600W Modular
Keyboard Corsait K70 with red switches
Software Win10
#19
Dunno, you will need a temp monitoring program.
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#20
Ok but it would be safe to assume that with less blades means less airflow
 
Joined
Aug 11, 2011
Messages
4,335 (1.87/day)
Likes
3,020
Location
Mexico
System Name STEAMBOX | GAMECUBE | EQC (Everyday Quad Core)
Processor i5 4590@3.7Ghz |i7 3770K@4Ghz -|- Athlon 5350@2.52Ghz
Motherboard GA-B85N PHOENIX | Asrock Z77E-ITX | Asus AM1I-A
Cooling Stock | Antec Kuhler 620 | Reeven Vanxie
Memory 2x4GB ADATA XPG 1600Mhz | 2x4GB Kingston 1866Mhz -|- 2x4GB Crucial Ballistix@1920Mhz
Video Card(s) RX 480 Nitro | Sapphire RX 480 w/Accelero Mono Plus | HD 8400 @ 720Mhz (IGP)
Storage LiteON 128GB mSATA+3TB Seagate | Seagate 1TBxSamung 64GB SSD (Intel RST) | Kingston v300 240GB
Display(s) Daewoo 49" 1080p | ASUS PA248Q 1920x1200 IPS
Case Corsair 250D | CoolerMaster Elite 110 | Acteck Fiji
Audio Device(s) Onboard
Power Supply Seasonic SS-660XP2 | Silverstone SFX-450 | 200w mini FLEX PSU
Software Windows 10 64bit
#21
Yeah, it's safe. Your CPU will get a little hotter and maybe throttle back but that's it.
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#22
Ok if it runs to hot itll just shut itself off right to prevent damage? Its a xeon 5160. And if i have to use the original fan for a week or so will it ok?
 
Last edited:
Joined
Aug 11, 2011
Messages
4,335 (1.87/day)
Likes
3,020
Location
Mexico
System Name STEAMBOX | GAMECUBE | EQC (Everyday Quad Core)
Processor i5 4590@3.7Ghz |i7 3770K@4Ghz -|- Athlon 5350@2.52Ghz
Motherboard GA-B85N PHOENIX | Asrock Z77E-ITX | Asus AM1I-A
Cooling Stock | Antec Kuhler 620 | Reeven Vanxie
Memory 2x4GB ADATA XPG 1600Mhz | 2x4GB Kingston 1866Mhz -|- 2x4GB Crucial Ballistix@1920Mhz
Video Card(s) RX 480 Nitro | Sapphire RX 480 w/Accelero Mono Plus | HD 8400 @ 720Mhz (IGP)
Storage LiteON 128GB mSATA+3TB Seagate | Seagate 1TBxSamung 64GB SSD (Intel RST) | Kingston v300 240GB
Display(s) Daewoo 49" 1080p | ASUS PA248Q 1920x1200 IPS
Case Corsair 250D | CoolerMaster Elite 110 | Acteck Fiji
Audio Device(s) Onboard
Power Supply Seasonic SS-660XP2 | Silverstone SFX-450 | 200w mini FLEX PSU
Software Windows 10 64bit
#23
Yes, it will first throttle to a lower speed, if that doesn't keep it from overheating it will shut down.
 
Joined
Mar 2, 2013
Messages
346 (0.20/day)
Likes
59
Location
st. louis missouri
Processor Amd fx 8320 at 3.7 ghz cooler master hyper t4 heatsink
Motherboard Msi 970 43g
Cooling 5 case fans
Memory Gskill ripjaws 16 gb ddr3 1600 mghz
Video Card(s) gtx 960 2 gb gddr5
Storage 2 tb solid state hybrid drive/1 tb hitachi hdd
Case Diypc vt 380
Power Supply 800 watt delta server grade psu/ laptop psu.
Mouse blackweb grim gaming mouse
Keyboard blackweb led backlit gaming keyboard non mechanical :(
Software windows 10 64 bit
#24
ok a bit of an update. i have the use the old fan for now because the other 2 fans i got wont fit on the heatsink. the fan is spinning quite abit faster than before i can tell by the extra noise.

and the temps are exactly the same as before but my cpu likes to get up to 80 degrees c on a full load which it has been doing even before my fan broke.

so since i have been having this temperature issue for quite a while and my pc is perfectly stable even after playing intense games such as far cry 3, crysis 1,2 and 3, battlefield 3 etc, do i have anything to worry about? could the temp sensor in the cpu or mb be bad?

i greatly appreciate all of your guys help with this issue.

full hardware specs: two intel dual core xeon 5160 cpus at 3.0ghz, nvida gtx 570, 4 gigs of ddr2 ram, 740 gig hdd, 850 watt psu, rocketfish sound card.
 
Joined
Nov 10, 2006
Messages
4,527 (1.12/day)
Likes
6,075
Location
Washington, US
System Name Lappy
Processor i7 6700k
Motherboard Sager NP9870
Cooling A lot smaller than I'd like
Memory Samsung 4x8GB DDR4-2133 SO-DIMM
Video Card(s) GTX 980 (MXM)
Storage 2xSamsung 950 Pro 256GB | 2xHGST 1TB 7.2K
Display(s) 17.3" IPS 1080p G-SYNC
Audio Device(s) Sound Blaster X-FI MB 5, Foster 2.1 channel integrated
Mouse Razer Deathadder
Keyboard 3-zone RGB integrated
Software Windows 10 Pro
Benchmark Scores Not slow
#25
why not just move the pins from the old 5 pin plug to the new fan just make sure you get the asignment right
http://www.overclockers.com/wp-content/uploads/2012/12/12-300x300.png
I was just going to suggest this. I've done this with good success for power supplies.

If you can, I'd just leave the CPU fan header unplugged and power the replacement fan off of a system fan header or 3-pin molex to 3-pin adapter. You'll most likely get a warning from the BIOS when you first boot up the computer that you'll have to "F1 to continue" when it boots, but it's a small price to pay.