Computer Shuts down During Boot

anticlutch · Mar 16, 2007

I've just built a computer for a friend and we ran into a problem while building it. On the motherboard (MSI 975X Platinum V.2 LGA 775 ) there is a 8-pin power thing to the left of the CPU (I can't think of what it's called but I know what it does). The case's stock power supply only had a 4 pin plug, so I put that in and plugged everything else up and then tried to power up the computer. However, when it turned on, it would only stay on for about 5-10 seconds before shutting off without any beeps or anything. After shutting down, it would stay off for about 5 seconds then power up again, and it would then repeat the process. My first thought was that it wouldn't boot because of the missing 4 pin power supply, but I wanted to turn to the knowledgable people of this forum to give me a second opinion

In a nutshell: If the motherboard has a 8-pin power plug but only 4 of them are connected, will it cause problems?

The other stuff in his rig just in case you guys need to know:
RAIDMAX SMILODON ATX-612WBP Black SECC STEEL ATX Mid Tower Computer Case
G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800
MSI 975X Platinum V.2 LGA 775
Seagate Barracuda 7200.9 ST3250824AS 250GB 7200 RPM SATA
Intel Core 2 Duo E6600
MSI RX1950PRO 256mb / a Zalman VF900 fan

Any help will be appreciated

Exeodus · Mar 16, 2007

Only using a 4-pin power supply shouldn't be a issue, unless you plan to overclock.

Your motherboard manual should show you a diagram of the 8-pin socket and show you which pins to use with the 4-pin connector. If you don't have the manual, you can download it from MSI's website.

Which power supply are you using??

anticlutch · Mar 16, 2007

But the thing is, the manual doesn't mention anything about support for only 4 pins... it just gives me a diagram of the 24pin power connection, the 8-pin, and another molex for the video card...

DrunkenMafia · Mar 16, 2007

The 4 pin connector should only plug into the 8 pin connector 1 way, all the small sockets should be "keyed". Don't force it though!!!

Judging by your specs though you are building a fairly power hungry system so a good PSU will be needed. I would suggest getting one with a 8pin EPS connector... The board has one and it must be there for a reason

. Although it will work with only a four pin connector.

anticlutch · Mar 16, 2007

Well I didn't try to force anything in so I'm pretty sure nothing was damaged... could there be another reason why the computer won't even post? The case comes with a 500w power supply (so probably 450w at best) so I think that should be okay for a while... would a 6-pin to 8-pin converter work?

Polaris573 · Mar 16, 2007

What exactly is the model of the power supply? It might be 450 watt and still have low amperage, or it might just be bad. Restarting at boot sounds like a classic example of a bad power supply

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anticlutch · Mar 16, 2007

It's a Raidmax powersupply rated at 500w (the amps were ok... I can't remember but it was around 18-20 amps on the 12v).

Polaris573 · Mar 16, 2007

Is it dual rail or single rail? If it's single rail then 18-20 amps might be kind of on the low side for such a power hungry system. Raidmax isn't the greatest quality to begin with, you might just have a bad power supply even if it does have enough watts, amps, etc. Plug your PSU into his computer and see what happens.

Namslas90 · Mar 16, 2007

According to the MSI website that motherboard has known problems with standard Bios settings and memory. It has a specific list of compatable memory ,and G. Skill is not on the list. Your memory may be your problem.

anticlutch · Mar 16, 2007

Aw man... I'll try to use my spare PSU on his computer (hopefully it'll work).

I really hope that the memory isn't the problem though, since RMA'ing through Newegg will take a few days

Thanks for all your help guys

edit for Polaris: I think it's a dual rail PSU...

Exeodus · Mar 16, 2007

No... the 6-pin power connector is not the same as the 4 or 8-pin. Do not plug the 6-pin in the EPS connector.

I also agree with the other posts, I would purchase a new power supply, at least 600 watts and make sure it has the 8-pin 12V EPS connector.

largon · Mar 17, 2007

PSU/power/wattages have nothing to with this.

The cause of this problem is incompatible or dead hardware, most likely a dead motherboard.

Processor	Intel C2D E6420 (3.2 gHz @ 1.365v)
Motherboard	Gigabyte 965P-DS3
Cooling	Zalman CNPS9500 LED
Memory	4 x 512mb Corsair XMS2 DDR2 667
Video Card(s)	Visiontek HD 4870 512mb
Storage	200gb Maxtor SATA, 400gb WD SATA
Audio Device(s)	Audigy 2 ZS
Software	Windows XP Pro SP2

System Name	The W.O.P.R.
Processor	Core i7 920 D0 @ 4.0GHz 1.24 vcore
Motherboard	ASUS P6T
Cooling	Xigmatek S1283 with push\pull fan configuration.
Memory	6GB Mushkin DDR3 1600MHz 7-8-7-20
Video Card(s)	2 - ASUS EAH5850 CrossfireX
Storage	1TB WD Black
Display(s)	I-INC 28" 1920x1200 HDMI
Case	Ultra M998
Audio Device(s)	Realtek HD
Power Supply	Corsair TX750W
Software	Windows 7 Enterprise 64-bit

Processor	Intel C2D E6420 (3.2 gHz @ 1.365v)
Motherboard	Gigabyte 965P-DS3
Cooling	Zalman CNPS9500 LED
Memory	4 x 512mb Corsair XMS2 DDR2 667
Video Card(s)	Visiontek HD 4870 512mb
Storage	200gb Maxtor SATA, 400gb WD SATA
Audio Device(s)	Audigy 2 ZS
Software	Windows XP Pro SP2

System Name	GaMEr / HTPC
Processor	FX8320 4.5ghz so far NB- 2815mhz / X2 255 @ 3.2ghz (Temp till BD)
Motherboard	990FX-UD5 / GA-MA785GPMT-US2H
Cooling	XSPC - 240rad 480rad 5 x 120mm out, 6 x 80mm in / H220-edge 1/2" & 2 x 120mm Magma
Memory	4gb PI 6,8,6,18 1T 1706mhz / 4gb Crucial D9's 1400 @ 6,6,6,18,1T
Video Card(s)	3gb HD7950 / Onboard
Storage	2 x 120gb Sandisk ultra plus 2tb WD / 60gb vertex 2 + 2 x 2tb WD Greens
Display(s)	3x24in Dell Ultra (portrait) / NEC 32" FullHD LCD
Case	LL PC71A Full tower / Antec fusion black with Imon remote Modded for WC
Audio Device(s)	OB / Auzentech cinema 7.1
Power Supply	TT 700w TR2 / TT 600w Litepower modded with Noctua S12 fan.
Software	7 Ult / 7 premium x64

Processor	Intel C2D E6420 (3.2 gHz @ 1.365v)
Motherboard	Gigabyte 965P-DS3
Cooling	Zalman CNPS9500 LED
Memory	4 x 512mb Corsair XMS2 DDR2 667
Video Card(s)	Visiontek HD 4870 512mb
Storage	200gb Maxtor SATA, 400gb WD SATA
Audio Device(s)	Audigy 2 ZS
Software	Windows XP Pro SP2

Computer Shuts down During Boot

anticlutch

Exeodus

anticlutch

DrunkenMafia

anticlutch

Polaris573

Senior Moderator

anticlutch

Polaris573

Senior Moderator

Namslas90

New Member

anticlutch

Exeodus

largon

Processor	LGA 775 Intel Q9550 2.8 Ghz
Motherboard	MSI P7N Diamond - 780i Chipset
Cooling	Arctic Freezer
Memory	6GB G.Skill DDRII 800 4-4-3-5
Video Card(s)	Sapphire HD 7850 2 GB PCI-E
Storage	1 TB Seagate 32MB Cache, 250 GB Seagate 16MB Cache
Display(s)	Acer X203w
Case	Coolermaster Centurion 5
Audio Device(s)	Creative Sound Blaster X-Fi Xtreme Music
Power Supply	OCZ StealthXStream 600 Watt
Software	Windows 7 Ultimate x64

System Name	Ladpot ◦◦◦ Desktop
Processor	R7 5800H ◦◦◦ i7 4770K, watercooled
Motherboard	HP 88D2 ◦◦◦ Asus Z87-C2 Maximus VI Formula
Cooling	Mixed gases ◦◦◦ Fuzion V1, MCW60/R2, DDC1/DDCT-01s top, PA120.3, EK200, D12SL-12, liq.metal TIM
Memory	2× 8GB DDR4-3200 ◦◦◦ 2× 8GB Crucial Ballistix Tactical LP DDR3-1600
Video Card(s)	RTX 3070 ◦◦◦ heaps of dead GPUs in the garage
Storage	Samsung 980 PRO 2TB ◦◦◦ Samsung 840Pro 256@178GB + 4× WD Red 2TB in RAID10 + LaCie Blade Runner 4TB
Display(s)	HP ZR30w 30" 2560×1600 (WQXGA) H2-IPS
Case	Lian Li PC-A16B
Audio Device(s)	Onboard
Power Supply	Corsair AX860i
Mouse	Logitech MX Master 2S / Contour RollerMouse Red+
Keyboard	Logitech Elite Keyboard from 2006 / Contour Balance Keyboard / Logitech diNovo Edge
Software	W11 x64 ◦◦◦ W10 x64
Benchmark Scores	It does boot up? I think.