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‎03-21-2020 01:57 PM

HP Recommended
Product: Pavilion 590-p0xxx

I have an HP Pavilion 590-p0xxx with Sunflower moterboard . The +5 power supply to the HDD is supplied from the motherboard via a inbuild DC-DC converter (+12v -> +5v) What's its max power? Is its power sufficient to power 2 HDDs that consume +5v of 0.9 A each (1.8 amper at summ).

4 REPLIES 4

‎03-21-2020 03:16 PM

HP Recommended

@AlexWick,

No problem. The motherboard supports 3 SATA devices.

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‎03-22-2020 01:07 AM

HP Recommended

I know, Sunflower motherboard support 3 SATA device. But SATA drive is very different by power. Example typical power on +5v bus for:

HDD (WD Purple WD121PURZ — 0,4 A; Seagate Exos X16 — 0.9 A)

SSD (CWD Green WDS120G2G0A 120GB -1.0 A; PLEXTOR LiteOn MU 3 PH6-CE120 120GB,-2.0 A)

CD 1.0-2.0 A (DVD-RW LG GTC0N — 1.8 A)

And summary power for +5v bus(SATA) max up to 5-6 amper. 5V x 6 A = 30 Watt, 30 watt is real power for DC-DC convertor or maximum power is limited to a lower value?

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‎03-22-2020 10:40 AM - edited ‎03-22-2020 10:40 AM

HP Recommended

@AlexWick,

What does the label on the PSU state?  It should list all the volts  /  amps.

This system is feedback driven thru Solution and Kudo flags. It's the only means of knowing if you have been served. Please click Accept as Solution, if your problem is solved. To say THANK YOU, press the "thumbs up symbol" to render a KUDO. You can render both Solution and KUDO..

HP Envy 8 5010 Tablet
(2) HP DV7t i7 3160QM 2.3Ghz 8GB
Printer -- HP OfficeJet Pro 8620 Legal
Custom Asus Z97D, I7-4790k, 16GB RAM, WIN10 Pro 64bit, ZOTAC GTX1080 AMP Extreme 3 fan 8GB RAM, 500GB SSD, Asus PB287 4k monitor, Rosewill Blackhawk case and 750W OCZ PSU.
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‎03-22-2020 11:02 AM

HP Recommended

0.jpg

This is standart PSU 180W part number L08261-022. This PSU have one output line +12V and power this line 14.88 A (see photo). This PSU line have two connectors: 1st — power for CPU, 2nd-power other circuit. On the motherbord there DC-DC comvertor which the make +5V from +12V. SATA power connector connect to the motherboard which is taken +5V and +12V for SATA. +12V direct from PSU, +5V from DC-DC. Direct SATA power connectior from PSUdoes not exist. Therefore, I wonder what the power of the DC-DC converter +5V?

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