HPU-4M780 chit chat about weak points.

syncmaster_abx · 12-24-2008, 01:57 PM

The Hiper HPU-4M780 is my next PSU .
And it is on order too.

The web is full of good reviews about it , but i read in one review that is single rail 12 V !! Even that way it has 50A capacity on that rail , the 80 Plus testing report prove that .

Question are any other proofs that is single rail ?

I am a bit confused , because i need more power for one 478 socket P4 3.2 with the latest HD 3850 .

It looks that my old Hiper 580R , is unable to handle the load.

The problem in my eyes is not the named total power on the PSU,
but the way that is distributed across the voltage outputs .

The Hiper 580R falls sort at the rule of minimum 30A at the 12V rail, for one card as the HD 3850 .
But its capable to run one 6800GT .

Did any one test the HPU-4M780 with socket 478 i875 board ?

wonderwrench · 12-24-2008, 02:56 PM

As far as I know all consumer supplies are really single rail. So called muti rail supplies just split this single 12v rail up and add over current protection to each leg. Doing so makes for a safer supply at least on paper anyway. Doing so can cause problems if you try to draw more amperage from one leg than it is rated for.

IMO any supply under about 600 watts should be as single rail (not split) to eliminate any possible load balancing problems. Any supply over about 700 watts should be a split rail design with a minimum of 4 so called rails for added safety. Supplies between 600 and 700 watts are in a gray area. If you want better safety go multi or if you want to eliminate possible load balance problems go single rail.

syncmaster_abx · 12-24-2008, 07:13 PM

Thanks for your reply wonderwrench .

i found this review and it is a single rail ..
techPowerUp :: Hiper Type M 780W Review :: Page 1 / 6

All that i need is enough power for the HD 3850 .

I suspect low 12V rail , the book says 28A max 12v1+12v2
The PSU does not drop the 12V line , but it cannot handle fast enough the peak load.
So i am guessing that this cause other rails to drop volts , and CPU or memory cannot stay operational under this conditions .

The HPU-4M780 , is an amazing monster , i have print the verification certificate 80PLUS of it, the 12v1 + + 12v4 gave a 50A total at full load .

My pack are : P4C800E dlx + P4 3.2G 4x512 OCZ + 6800GT 2xRaptors + 2xHD 2xDVD

I just hope that this monster PSU will do the magic .

syncmaster_abx · 12-24-2008, 08:56 PM

After some research i found this paper on the CWT page ...

It must be the starting specs of this PSU .
As the final product based on special choices of Hiper.

http://www.cwt.com.tw/upfiles/layout01197623464.pdf

syncmaster_abx · 12-28-2008, 05:51 PM

Well , i must turn down my suspicions about the power handling ability of the R580 .

The new 4M780 did not help my problem , looks that the issues that i have with the HD3850 , are some weird problem of the card it self .

But i have to admit that the 4M780 runs very cooler , almost frozen .
And its normal , i use only the 1/3 of it power , even at full load.

Joe Public · 01-07-2009, 05:48 AM

Well, a HD3850 draws typically 80W under load (according to Xbitlabs, which measure the power draw from the card alone), the requirements of 30A is the manufacturers estimate for an entire rig, and a loaded rig as such. (Also taking into consideration that there are crap PSUs). Only enthusiast computers with OC and SLI will consume 30A from the PSU (90% of that from the 12V). But the Hiper 580 always seemed to have been a recurring villain when it comes to troubled rigs, they've stopped selling it all toghether in Norway because there were too many RMAs. The CWT built higher models will be just fine though. The 580 is built by Andyson, who can make good PSUs, but the Hiper doesn't seem like one of them.

syncmaster_abx · 01-07-2009, 11:13 PM

About the 580 Type R , my first one , in a year time explode it self .
I got a large explosion sound, and thanks God .. not smoke or fire.

I start RMA , send it to Holland , and got replacement newer Ver. ,
the New one, was trouble free , two years passed as still goes.

The 580 was exhausting a bit of hot air ....the 780W works totally frozen ..
And i say extremely totally frozen .

About the HD3850 , i got scammed by the ebay seller ,
and got a true bad apple .
So now with paypal help, the sale got canceled.
And it will take me some time to sort out everything , and finally buy a new one HD3850 .

Joe Public , thanks for your reply .
But i am a bit positive that even if some one finds today one 580R it will be safe to get .
We got all the crappy ones when it first came out , it had amazing design - power and price at that time.

12-24-2008, 01:57 PM	#1
syncmaster_abx Moto Rider Honda AX-1 Join Date: Dec 2001 Location: Greece - Europe - Planet Earth Posts: 2,036	HPU-4M780 chit chat about weak points. The Hiper HPU-4M780 is my next PSU . And it is on order too. The web is full of good reviews about it , but i read in one review that is single rail 12 V !! Even that way it has 50A capacity on that rail , the 80 Plus testing report prove that . Question are any other proofs that is single rail ? I am a bit confused , because i need more power for one 478 socket P4 3.2 with the latest HD 3850 . It looks that my old Hiper 580R , is unable to handle the load. The problem in my eyes is not the named total power on the PSU, but the way that is distributed across the voltage outputs . The Hiper 580R falls sort at the rule of minimum 30A at the 12V rail, for one card as the HD 3850 . But its capable to run one 6800GT . Did any one test the HPU-4M780 with socket 478 i875 board ?
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12-24-2008, 02:56 PM	#2
wonderwrench ABXpert Join Date: Mar 2003 Location: Mpls MN Posts: 1,728	Re: HPU-4M780 chit chat about weak points. As far as I know all consumer supplies are really single rail. So called muti rail supplies just split this single 12v rail up and add over current protection to each leg. Doing so makes for a safer supply at least on paper anyway. Doing so can cause problems if you try to draw more amperage from one leg than it is rated for. IMO any supply under about 600 watts should be as single rail (not split) to eliminate any possible load balancing problems. Any supply over about 700 watts should be a split rail design with a minimum of 4 so called rails for added safety. Supplies between 600 and 700 watts are in a gray area. If you want better safety go multi or if you want to eliminate possible load balance problems go single rail. __________________ C2Q Q6600 @ 3 GhzMSI P35 Neo2-FR bios 1.104 x 2 gig Corsair XMS2 DDR2 800 ramEvga 8800GT SSC SATA HD's 1 Seagate 320 gig, 1 Samsung 320 gig LiteOn sohw-1693sPlextor PX 716aTeac FloppyOCZ 700GXSSLI PSU* Rosewill R6AR6-BK case* Windows 7 pro 64 bit Good judgment comes from experience, and often experience comes from bad judgment.
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12-24-2008, 07:13 PM	#3
syncmaster_abx Moto Rider Honda AX-1 Join Date: Dec 2001 Location: Greece - Europe - Planet Earth Posts: 2,036	Re: HPU-4M780 chit chat about weak points. Thanks for your reply wonderwrench . i found this review and it is a single rail .. techPowerUp :: Hiper Type M 780W Review :: Page 1 / 6 All that i need is enough power for the HD 3850 . I suspect low 12V rail , the book says 28A max 12v1+12v2 The PSU does not drop the 12V line , but it cannot handle fast enough the peak load. So i am guessing that this cause other rails to drop volts , and CPU or memory cannot stay operational under this conditions . The HPU-4M780 , is an amazing monster , i have print the verification certificate 80PLUS of it, the 12v1 + + 12v4 gave a 50A total at full load . My pack are : P4C800E dlx + P4 3.2G 4x512 OCZ + 6800GT 2xRaptors + 2xHD 2xDVD I just hope that this monster PSU will do the magic .
(Offline)

12-24-2008, 08:56 PM	#4
syncmaster_abx Moto Rider Honda AX-1 Join Date: Dec 2001 Location: Greece - Europe - Planet Earth Posts: 2,036	Re: HPU-4M780 chit chat about weak points. After some research i found this paper on the CWT page ... It must be the starting specs of this PSU . As the final product based on special choices of Hiper. http://www.cwt.com.tw/upfiles/layout01197623464.pdf
(Offline)

12-28-2008, 05:51 PM	#5
syncmaster_abx Moto Rider Honda AX-1 Join Date: Dec 2001 Location: Greece - Europe - Planet Earth Posts: 2,036	Re: HPU-4M780 chit chat about weak points. Well , i must turn down my suspicions about the power handling ability of the R580 . The new 4M780 did not help my problem , looks that the issues that i have with the HD3850 , are some weird problem of the card it self . But i have to admit that the 4M780 runs very cooler , almost frozen . And its normal , i use only the 1/3 of it power , even at full load.
(Offline)

01-07-2009, 05:48 AM	#6
Joe Public Registered User Join Date: Oct 2002 Posts: 1,932	Re: HPU-4M780 chit chat about weak points. Well, a HD3850 draws typically 80W under load (according to Xbitlabs, which measure the power draw from the card alone), the requirements of 30A is the manufacturers estimate for an entire rig, and a loaded rig as such. (Also taking into consideration that there are crap PSUs). Only enthusiast computers with OC and SLI will consume 30A from the PSU (90% of that from the 12V). But the Hiper 580 always seemed to have been a recurring villain when it comes to troubled rigs, they've stopped selling it all toghether in Norway because there were too many RMAs. The CWT built higher models will be just fine though. The 580 is built by Andyson, who can make good PSUs, but the Hiper doesn't seem like one of them. __________________ Asus P5B-E - Core 2 Duo E6600 @ 3.2 GHz - 2x1024MB Geil PC6400 RAM - Asus GeForce GTX260 896MB- Samsung F1 1TB - Corsair HX620W PSU - 18x Samsung DVD/RW - SB Live - Winders XP SP2/Ubuntu 7.10
(Offline)

01-07-2009, 11:13 PM	#7
syncmaster_abx Moto Rider Honda AX-1 Join Date: Dec 2001 Location: Greece - Europe - Planet Earth Posts: 2,036	Re: HPU-4M780 chit chat about weak points. About the 580 Type R , my first one , in a year time explode it self . I got a large explosion sound, and thanks God .. not smoke or fire. I start RMA , send it to Holland , and got replacement newer Ver. , the New one, was trouble free , two years passed as still goes. The 580 was exhausting a bit of hot air ....the 780W works totally frozen .. And i say extremely totally frozen . About the HD3850 , i got scammed by the ebay seller , and got a true bad apple . So now with paypal help, the sale got canceled. And it will take me some time to sort out everything , and finally buy a new one HD3850 . Joe Public , thanks for your reply . But i am a bit positive that even if some one finds today one 580R it will be safe to get . We got all the crappy ones when it first came out , it had amazing design - power and price at that time.
(Offline)

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