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ultrabike's avatar
ultrabike
Aspirant
Jun 20, 2015

Readynas Pro heat issues

Hopefully this is the right place to post this. I've had my Readynas Pro for about 7 years. Recently the power supply fan started to make funny noises and temperature was kind of high. Scheduled power down/ups failed so I always had the unit on. I cleaned up the unit and tried to replace the power supply fan only but the replacement fan was too slow and eventually just stopped.

So I got a new power supply from Seasonic (SS-300SFD) + extension cables. I made some modifications to the cabling since they were too long and this worked out fine regarding the fan and now the scheduled power down/ups are working properly. However, the unit still gets pretty hot.

I tried to replace the 120mm SYS fan with a Noctua NF-S12A FLX to see if heat issues would improve. This did not work. The NAS got really hot and hard drives started to shut down and got all kinds of messages from the NAS about heat issues, so I replaced the original 120mm fan back.

I'm waiting for some crimps to improve the cabling and perhaps improve air flow. If I open the unit, the heat problem goes away. It seems the heat problem comes from the heat sink on the memory controller just below the CPU. I also noticed that my NAS uses the E2160.

Would updating the CPU for an E5300 or any other compatible CPU reduce heat build up? Should I cut some holes on the side and add another fan?

These are currently my NAS readings with the stock 120mm fan:

Device Description Status
Disk 1 WDC WD20EARX-00PASB0 1863 GB , 36 C / 96 F , Write-cache ON OK
Disk 2 WDC WD20EARX-00PASB0 1863 GB , 35 C / 95 F , Write-cache ON OK
Disk 3 WDC WD20EFRX-68AX9N0 1863 GB , 32 C / 89 F , Write-cache ON OK
Disk 4 WDC WD20EFRX-68AX9N0 1863 GB , 34 C / 93 F , Write-cache ON OK
Disk 5 WDC WD20EZRX-19D8PB0 1863 GB , 34 C / 93 F , Write-cache ON OK
Disk 6 WDC WD20EARX-00PASB0 1863 GB , 33 C / 91 F , Write-cache ON OK
Fan SYS 1854 RPM OK
Fan CPU 1534 RPM OK
Temp SYS 58 C / 136 F [Normal 0-65 C / 32-149 F] OK
Temp CPU 37 C / 98 F [Normal 0-60 C / 32-140 F] OK
UPS 1 APC Back-UPS ES 550, Battery charge: 100%, 19 minutes OK

I'm still on 4.2.27. Thanks.

47 Replies

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  • Well if the SYS temperature sensor is on the Northbridge... that would explain many things. I thought it was actually sensing the air out of the box! And that would explain why removing the side panel would slow down the fan, there is no 'fresh air' getting into the motherboard vane, where the NorthBridge is, all the fresh air goes into the CPU and only when it's been warmed up it then enters the MB vane.

    How do I distinguish between V1 and V2? Is the sensor an actual sensor (i.e. a wire) or is it embedded into some electronics?
  • ultrabike wrote:
    How are the fans behaving under OS6? Read around that fans were running too fast or something. Any issues?

    No issues with the fans, but then I was a latecomer to OS6 (I think around the time of v6.1.9, after the fan speed issues had been fixed on legacy units).


    Here's my setup temperatures and fan speeds, I'm running three OS6 units at home, two Pro BEs with upgraded CPUs and a stock Ultra 6. All stats measured at idle state, all three units were cleaned and dust free as of a week ago:

    DEV - Pro BE v1 w/E6700 CPU + 2GB RAM
    5 x 320GB disks (temps 40-44C / 104-111F) - FAN 835 rpm - CPU 36C / 97F - SYS 53C / 127F (basement 17C /63F)

    PROD - Pro BE v1 w/X3230 CPU + 4GB RAM
    6 x 4TB disks (temps 33-35C / 91-95F) - FAN 869 rpm - CPU 35C / 91F - SYS 50C / 122F (office 21C / 70F)

    DR - Ultra 6, stock CPU + 4GB RAM
    6 x 4TB disks (temps 35-38C / 95-100F) - FAN 788 rpm - CPU 35C / 95F - SYS 29C / 84F (basement 17C /63F)

    Note the lower SYS temperature reading on the Ultra 6.
  • Thanks! I'll see if I can upgrade the old unit to OS6 and report back.
  • slightly OT: I tested OS6 some time ago, it was when the fans were still having trouble. The "fan speed issue fixed on legacy units" puzzles me. Are Netgear working to integrate OS6 on legacy units too?
  • StephenB's avatar
    StephenB
    Guru - Experienced User
    tony359 wrote:
    slightly OT: I tested OS6 some time ago, it was when the fans were still having trouble. The "fan speed issue fixed on legacy units" puzzles me. Are Netgear working to integrate OS6 on legacy units too?
    Netgear doesn't support OS6 on legacy x86 devices (pro, ultra). But they have occasionally slipped in some bug fixes for legacy, which IMO is quite nice.
  • ^^^ Indeed, and it was this, coupled with the fact that my Pro were almost out of warranty anyway, that made me switch to OS6.
  • indeed, Stephen.

    I'll think about during my next factory reset, I did try OS6 when I was still testing and I cannot remember right now what was not right that made me decide to stay with OS4. After all I am just using the NAS... as a NAS, besides the CrashPlan which anyway works beautifully. I'll evaluate during next HDD upgrade - those bloody HDD's don't want to get any cheaper!!

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