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[OCN Labs] Plextor M8Se NVMe Review by Jeffrey Edson - Page 2

post #11 of 23
I put small heat sinks on my Samsung 960 EVO and it is 30c at idle (checked with infrared laser thermometer and also with HWMonitor). It got up to 31C while running samsung magician becnhmark.
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post #12 of 23
Quote:
Originally Posted by Blameless View Post

Thanks for the clarification.

Yeah, 53.4C idle isn't too impressive...same ballpark as my M6e with no supplemental cooling, and I could easily get this drive to throttle under heavy load before I stuck some thermal pads under it to transfer the controller's heat to the motherboard.

The heat resistance Plextor mentions sounds like some sort of manufacturing process (special solder or underfill) to make things less likely to break during thermal cycling.

Why are the temps so high? I thought the point of SSDs and M.2 drives besides speed was temp and power usage since there are no moving parts? Does the speed increase really bring the temps up that much compared to SATA SSDs?
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post #13 of 23
Quote:
Originally Posted by rbarrett96 View Post

Why are the temps so high? I thought the point of SSDs and M.2 drives besides speed was temp and power usage since there are no moving parts? Does the speed increase really bring the temps up that much compared to SATA SSDs?

I think it is simply because on most M.2 drives, it is the bare PCB with chips on it. The standard 2.5" SSD comes in an all aluminum casing, but inside, looks much similar to an M.2 drive. The Aluminum casing acts as a heatsink for the drive. 2.5" SSD's are usually mounted in space, either hanging in the air or at least relatively distanced from other hot parts.
Most M.2 slots find themselves rather close to the CPU socket and Primary PCI-E graphics card slot. When a hot graphics card and a hot cpu are surrounding that little piece of hardware, it can't shed its heat very effectively and may even take on more heat from those components. There typically is reduced air flow because of a large heatsink and graphics card also, and so there won't be direct airflow onto an M.2 drive unless there happens to be a side panel fan pointed at it. Oh yeah, and the motherboard itself generates heat too, forgot to mention that. smile.gif

My opinion and some thermal dynamics. smile.gif
Edited by Bigceeloc - 7/25/17 at 6:02am
   
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post #14 of 23
My NVMe 960 evo doesn't go over 37c
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post #15 of 23
Quote:
Originally Posted by Bigceeloc View Post

I think it is simply because on most M.2 drives, it is the bare PCB with chips on it. The standard 2.5" SSD comes in an all aluminum casing, but inside, looks much similar to an M.2 drive. The Aluminum casing acts as a heatsink for the drive. 2.5" SSD's are usually mounted in space, either hanging in the air or at least relatively distanced from other hot parts.
Most M.2 slots find themselves rather close to the CPU socket and Primary PCI-E graphics card slot. When a hot graphics card and a hot cpu are surrounding that little piece of hardware, it can't shed its heat very effectively and may even take on more heat from those components. There typically is reduced air flow because of a large heatsink and graphics card also, and so there won't be direct airflow onto an M.2 drive unless there happens to be a side panel fan pointed at it. Oh yeah, and the motherboard itself generates heat too, forgot to mention that. smile.gif

My opinion and some thermal dynamics. smile.gif

Thanks, that's very informative. Much appreciated. Looks like I need to find another Cooler Master case with a 200 mm on the side and a mobo where the m.2 slot isn't under the GPU.
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post #16 of 23
Great write-up! My PNY CS2030 NVMe is a toasty drive.Temps idle would hover around 60-ish and under heavy activity would surpass it's safe operating temps of 82c eek.gif I purchased a set of TT ramsinks and attached one on the drive with thermal tape and zipties. Added a 60mm fan to blow across the sink/drive. The result dropped my drive's temp to 29c idle and 32c active.thumb.gif

IMG_20170710_142932.jpg 92k .jpg file
post #17 of 23
I have issues on my not cs2030 on my hero ix I can not make the the configuration. I have it on m2_2 I punt x4, csm desirable, intel rapid store, all in uefi install Windows on bios does, and does not say uefi only boot manger what I am doing wrong. Windows is on uefi frustration for the last 2 weeks
post #18 of 23
Quote:
Originally Posted by MrAgapiGC View Post

I have issues on my not cs2030 on my hero ix I can not make the the configuration. I have it on m2_2 I punt x4, csm desirable, intel rapid store, all in uefi install Windows on bios does, and does not say uefi only boot manger what I am doing wrong. Windows is on uefi frustration for the last 2 weeks

What motherboard are you using?
post #19 of 23
Thanks so much for your note. I am using a Asus Maximus Hero IX (BIOS 1004, all new install with all windows updates and current asus drivers (sound chip set ime intel lan), with 6700k, 32gb memory. The pny is install on the M2_2 port. I am reading on HWinfo64 that these drive have 2 temp sensors. 54C and the other 89C I run many test and i did see the full read and writes but one day speeds sucks. (sorry). maybe i did something wrong. I am on the process to get a cooler for it. but it will take some time. if i have to make a RMA on my board, since is not the only isuue it will be my 3 ASUS RMA in less than a year.

Since i did another clean install, i do not have all the drive install. but i have a other ways to send it!
post #20 of 23
Well looking at your owner's manual Chapter #3, page #19 the M2 slots share bandwidth with Sata ports#5&6 , so if you have anything connected (Sata drives) you will lose performance on the M2 drive. On my board my 2nd M2 slot shares sata ports #4 & 5 so once an M2 drive is connected I lose those 2 sata ports as they become disabled.

No sure how your board enables or disables those ports, but the manual shows it "shares" those ports, so you're losing 1/2 of the M2's speed if you have anything connected to those ports and have it set to X2 mode.


M2_2 PCIe Bandwidth Configuration: [X2][X4]:
[X2] - Run at X2 mode with Sata6G _56 Enabled
[X4] - Run at X4 mode for Higher Performance with Sata6G_56 DISABLED

So you run the M2 in X4 mode with nothing connected to Sata6G_56 because it will disable them.

Hope this helps.
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