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RubberDuckie
- Posts: 2854
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- Location: Texas
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Anyone recommend a good top of the line PS?
I have a coolmax CT-470 (470 watt) PS and I am having problems with my computer randomly restarting. From desktop to bios. Usually a PS problem and Im thinking of upgrading the PS.
I have a coolmax CT-470 (470 watt) PS and I am having problems with my computer randomly restarting. From desktop to bios. Usually a PS problem and Im thinking of upgrading the PS.
JSTMF
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RubberDuckie
- Posts: 2854
- Joined: Thu Nov 23, 2000 3:38 am
- Location: Texas
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Antec True psu's and the new 'Noisetaker' psu's from Enermax (dual 12v rails) seem to be about the best. Unless you can spring for a pc power and cooling one.
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<i><small>"Too much monkee business"</i></small>[/align]
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<i><small>"Too much monkee business"</i></small>[/align]
- Koo Koo Mouse
- Posts: 1712
- Joined: Wed Nov 22, 2000 5:09 pm
- Location: Osseo MN
Maybe you cound borrow a different PS first?
I thought I had a bad PS too and replaced it with an Enermax (random reboots) but didn't help. Well I wanted an upragrade anyway so I replaced the cpu MB and ram and a format/reinstall of windows. That worked. Funny thing is, I took all the old stuff and upgraded my p3450 to (the old)xp 1800 and expected to have the same problems. It runs fine. On the P3 upgrade I only repaired windows though. Hmmm.. It was either all the reseating or the windows repair.. I'm thinking the repair because I had tried reseating.
Just saying a bad PS isn't always it but very well could be.
Good luck.
I thought I had a bad PS too and replaced it with an Enermax (random reboots) but didn't help. Well I wanted an upragrade anyway so I replaced the cpu MB and ram and a format/reinstall of windows. That worked. Funny thing is, I took all the old stuff and upgraded my p3450 to (the old)xp 1800 and expected to have the same problems. It runs fine. On the P3 upgrade I only repaired windows though. Hmmm.. It was either all the reseating or the windows repair.. I'm thinking the repair because I had tried reseating.
Just saying a bad PS isn't always it but very well could be.
Good luck.
GeForce GTX 970
AMD FX 8350 8 core Processor
16 GIG
Seems plenty good for gaming!
AMD FX 8350 8 core Processor
16 GIG
Seems plenty good for gaming!

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RubberDuckie
- Posts: 2854
- Joined: Thu Nov 23, 2000 3:38 am
- Location: Texas
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Well it is a new mobo (had the same problem with the old mobo).
I have had issues like this with bad ram in the past. Im just hoping its not RAM. I have a gig of good ram in there and replacing a PS is much cheaper then the ram. Who knows. I might just deal with the reboots and save some cash till something really breaks
I have had issues like this with bad ram in the past. Im just hoping its not RAM. I have a gig of good ram in there and replacing a PS is much cheaper then the ram. Who knows. I might just deal with the reboots and save some cash till something really breaks
JSTMF
I just got one of these and i cannot say enough good things about it:
EG851AX-VH(W) FM
http://www.enermax.com.tw/product-01.htm
Features
• High output:660W/550W output provides sufficient power for server system.
• High compatibility
upports Intel Xeon and AMD MP dual CPU server/workstation board.
• Compatible with Intel SSI "EPS+12V V2.0" & AMD "ATX-GES" power supply form factors.
• Complete protection circuits ensure the highest system reliability: Over Current protection, Over Voltage protection, Under Voltage protection, Over Load protection, Short Circuit protection.
• Aluminum housing as external heat sink provides the best heat conduction to cool down heat generating components.
• Dual fans design,with high quality and long MTBF Sanyo Denki coolers, offers the best heat ventilation effect.
• Active PFC, PF Value >=0.95
• Extended PS/2 size 150W x 86H x 180D for both Tower and rack mount chassis.
• Two load ranges are defined to cover various power consumptions of different system configurations, from heavy to light load.
• Copper Shielding Tube on "Main/Processor/workstation power" output wire harness provide better EMI reduction.
• Cable sets for adapting EPS 12V Main power (24-pin ) and Processor power (8-pin) connectors to corresponding ATX 12V & AMD ATX GES connectors. *(As shown in photos)
Model No.
EG851AX-VH(W)
EG651AX-VH(W)
I/P
Voltage rating
90V~264V AC(Full Range)
Current rating
10A
9A
Frequency
47Hz~63Hz
Inrush current
25A max 240V (during cold start)
O/P
DC
Voltage
Ripple & Noise
Total
Reg.
Output current rating
Load Range 1
(Min. / Max.)
Load Range 2
(Min. / Max.)
Load Range 1
(Min. / Max.)
Load Range 2
(Min. / Max.)
+3.3V
50mV
+5/-3%
1.5A /38A
0.3A /9A
1.5A /36A
0.5A /9A
+5V
50mV
+5/-4%
5A /42A
2A / 8A
5A /36A
2A / 7A
+12V1
120mV
+5/-4%
1.5A / 14A
0.5A / 9A
1.5A / 14A
0.5A / 5A
+12V2
120mV
+5/-4%
1.5A /18A
0.5A / 6A
1.5A /16A
0.5A / 4A
+12V3
120mV
+5/-4%
1.5A /16A
0.5A / 9A
1.5A /16A
0.5A / 6A
+12V4
120mV
+5/-4%
1.5A / 14A
2A /9A
1.5A / 14A
2A /5A
-12V
120mV
+9/-5%
0A / 0.8A
0A / 0.5A
0A / 0.8A
0A / 0.5A
+5Vsb
50mV
+5/-3%
0.1A / 2.7A
0.1A / 2A
0.1A / 2.7A
0.1A / 2A
+3.3V & +5V
240W
200W
Max. Combined +12V
480W(40A)
420W(35A)
Total Power
660W
550W
Hold up time
18ms min. at 100~230V AC full load
Over Power Protection
105%~140% of max load
Under Voltage/Short Circuit Protection
+3.3V: 2.6V min, 2.9V max
+ 5V : 4.1V min, 4.5V max
+ 5Vsb:4.1V min, 4.5V max
+12V1.2..4 : 9.5V min, 10.5V max
Over Voltage Protection
+3.3V: 3.9V~4.5V
+ 5V : 5.7V~6.5V
+12V:13.3V~14.5V
Over Current Protection
+3.3V:55A max
+ 5V : 48A max
+12V1.2.3.4 :20A max
Efficiency
70% min. at full load
Cooling
Air convection by +12V DC fan
Operation Temperature
0ºC ~45ºC for full rating of load, 50ºC for 75% of rated load,
decrease to zero Waltts O/P at 70ºC
Storage Temperature
-20ºC ~80ºC
Humidity
Operating: to 85% relative humidity , non-condensing At 25ºC
Storage : to 95% relative humidity , non-condensing At 50ºC
MTBF
100K hours at 25ºC, 70% full rated load, 115VAC Input
EMC
EN55022 CLASS B
EN61000-3-2
EN 61000-3-3
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-8
EN 61000-4-11
FCC Part 15 & Part 2 and CNS 13438 Class B
Safety
UL cUL VDE DEMKO NEMKO SEMKO FIMKO
Dimension
W150 x H86 x D180 (mm)
EG851AX-VH(W) FM
http://www.enermax.com.tw/product-01.htm
Features
• High output:660W/550W output provides sufficient power for server system.
• High compatibility
• Compatible with Intel SSI "EPS+12V V2.0" & AMD "ATX-GES" power supply form factors.
• Complete protection circuits ensure the highest system reliability: Over Current protection, Over Voltage protection, Under Voltage protection, Over Load protection, Short Circuit protection.
• Aluminum housing as external heat sink provides the best heat conduction to cool down heat generating components.
• Dual fans design,with high quality and long MTBF Sanyo Denki coolers, offers the best heat ventilation effect.
• Active PFC, PF Value >=0.95
• Extended PS/2 size 150W x 86H x 180D for both Tower and rack mount chassis.
• Two load ranges are defined to cover various power consumptions of different system configurations, from heavy to light load.
• Copper Shielding Tube on "Main/Processor/workstation power" output wire harness provide better EMI reduction.
• Cable sets for adapting EPS 12V Main power (24-pin ) and Processor power (8-pin) connectors to corresponding ATX 12V & AMD ATX GES connectors. *(As shown in photos)
Model No.
EG851AX-VH(W)
EG651AX-VH(W)
I/P
Voltage rating
90V~264V AC(Full Range)
Current rating
10A
9A
Frequency
47Hz~63Hz
Inrush current
25A max 240V (during cold start)
O/P
DC
Voltage
Ripple & Noise
Total
Reg.
Output current rating
Load Range 1
(Min. / Max.)
Load Range 2
(Min. / Max.)
Load Range 1
(Min. / Max.)
Load Range 2
(Min. / Max.)
+3.3V
50mV
+5/-3%
1.5A /38A
0.3A /9A
1.5A /36A
0.5A /9A
+5V
50mV
+5/-4%
5A /42A
2A / 8A
5A /36A
2A / 7A
+12V1
120mV
+5/-4%
1.5A / 14A
0.5A / 9A
1.5A / 14A
0.5A / 5A
+12V2
120mV
+5/-4%
1.5A /18A
0.5A / 6A
1.5A /16A
0.5A / 4A
+12V3
120mV
+5/-4%
1.5A /16A
0.5A / 9A
1.5A /16A
0.5A / 6A
+12V4
120mV
+5/-4%
1.5A / 14A
2A /9A
1.5A / 14A
2A /5A
-12V
120mV
+9/-5%
0A / 0.8A
0A / 0.5A
0A / 0.8A
0A / 0.5A
+5Vsb
50mV
+5/-3%
0.1A / 2.7A
0.1A / 2A
0.1A / 2.7A
0.1A / 2A
+3.3V & +5V
240W
200W
Max. Combined +12V
480W(40A)
420W(35A)
Total Power
660W
550W
Hold up time
18ms min. at 100~230V AC full load
Over Power Protection
105%~140% of max load
Under Voltage/Short Circuit Protection
+3.3V: 2.6V min, 2.9V max
+ 5V : 4.1V min, 4.5V max
+ 5Vsb:4.1V min, 4.5V max
+12V1.2..4 : 9.5V min, 10.5V max
Over Voltage Protection
+3.3V: 3.9V~4.5V
+ 5V : 5.7V~6.5V
+12V:13.3V~14.5V
Over Current Protection
+3.3V:55A max
+ 5V : 48A max
+12V1.2.3.4 :20A max
Efficiency
70% min. at full load
Cooling
Air convection by +12V DC fan
Operation Temperature
0ºC ~45ºC for full rating of load, 50ºC for 75% of rated load,
decrease to zero Waltts O/P at 70ºC
Storage Temperature
-20ºC ~80ºC
Humidity
Operating: to 85% relative humidity , non-condensing At 25ºC
Storage : to 95% relative humidity , non-condensing At 50ºC
MTBF
100K hours at 25ºC, 70% full rated load, 115VAC Input
EMC
EN55022 CLASS B
EN61000-3-2
EN 61000-3-3
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-8
EN 61000-4-11
FCC Part 15 & Part 2 and CNS 13438 Class B
Safety
UL cUL VDE DEMKO NEMKO SEMKO FIMKO
Dimension
W150 x H86 x D180 (mm)
- FlyingPenguin
- Flightless Bird
- Posts: 33162
- Joined: Wed Nov 22, 2000 11:13 am
- Location: Central Florida
- Contact:
- Executioner
- Life Member
- Posts: 10354
- Joined: Wed Nov 22, 2000 11:34 am
- Location: Woodland, CA USA
My son is been having rebooting problems on his Asus P4 1.4GHz system. I've been thinking about replacing the PS because we bought it really cheap used ($20). It does have p4 support, and all was working fine until last month.
He's got RDRAM on his mobo (640 total). All slots are filled. What is really weird is once it's at the desktop, it runs just fine. It only happens on a cold boot. I've enabled the memory test to allow the PW (and other componets) to warm up first, but even that did not help it. Once it reboots 2 times from a cold start, then it works just fine.
He's got RDRAM on his mobo (640 total). All slots are filled. What is really weird is once it's at the desktop, it runs just fine. It only happens on a cold boot. I've enabled the memory test to allow the PW (and other componets) to warm up first, but even that did not help it. Once it reboots 2 times from a cold start, then it works just fine.
- FlyingPenguin
- Flightless Bird
- Posts: 33162
- Joined: Wed Nov 22, 2000 11:13 am
- Location: Central Florida
- Contact:
Also , if you are having random reboot problems, be sure to check the MOBO for leaky caps- i just had to replace one recently. in 2003 bad caps wasa big issue over in japan
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- Executioner
- Life Member
- Posts: 10354
- Joined: Wed Nov 22, 2000 11:34 am
- Location: Woodland, CA USA
Yeah that was the first thing that I did. I did not see any leaky ones or any bulging. I'm probably going to try the PS first since I already have 2 new ones that I purchased.Originally posted by BillyGoat
Also , if you are having random reboot problems, be sure to check the MOBO for leaky caps- i just had to replace one recently. in 2003 bad caps wasa big issue over in japan

