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Cylon Agent

Exceeding motherboard's TDP by 5 watts - okay?

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Posted · Original PosterOP

I replaced a Xeon E5-1620 with an E5-2690 and just realized the new CPU exceeds my motherboard's TDP by 5 watts. Is this a big deal assuming good cooling? Seem like the equivalent of a modest overclock, but figured I'd ask as these LGA2011 boards are surprisingly expensive. Assuming all is stable, should I try to place some kind of heatsink over the VRM?

 

Thanks!

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What board? And AFAIK VRMs are good to over 100C a lot of the time, they need to get quite hot before it's a big issue. If you're worried, pointing a fan at the VRM should do the trick. 


X58-X79-X99-X299 lads: Intel HEDT Xeon/i7 Megathread

 

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Planned Rig - i7 5820K - whatever cooler I decide on - EVGA X99 Micro 2 - 16GB (4x4GB) EVGA SSC DDR4 - EVGA XC Ultra 1660 Ti - 250GB 960 Evo - Whatever other drives I end up running - Corsair CX550 - Fractal Design Meshify C Mini - LG 25UM56-P - 25" 2560x1080 at 75Hz

Planned X58 rig - i7 950 - NH-D15S - EVGA X58 Classified SLI 3-Way - 24GB (3x8GB) HyperX Savage Red DDR3 - 2x EVGA Classified 780s - probably a basic SSD - EVGA 1600W T2 - Fractal Design Define S - 3x NF-P12 Redux + whatever other fans I end up using

Delayed Linux Box - X5670 - Intel i7 920 stock cooler - EVGA X58 Micro - 6GB (6x1GB) Corsair DDR3 most likely - AMD Radeon WX2100 - probably a basic SSD - 600W Enhance Flex ATX PSU - Old Dell slim mATX chassis - 2-3x NF-A8 fans

 

I lowkey enjoy HEDT

 

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I did that for years with a FX 8350 but it was quite a bit more than 5 watts lol. You will be fine.


PC:  Ryzen 5 1600 Gigabyte Gaming AB350 Gaming 3 | 16gb DDR4 2666MHz | Gigabyte Nvidia Geforce GTX 1060  6GB | 2x Crucial 1tb SSD | EVGA 650w Fully Modular PSU | NZXT H440

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Those CPUs have TDPs of 130W and 135W respectively. Your mobo is rated to deliver 130W only? Sounds a bit low as that wouldn't even cover turbo operation. Please give a link to the specific mobo used where power is specified. 

 

If that is the case, there is a possible workaround, you can simply configure the power limit to 130W or even lower.


Main rig: Asus Maximus VIII Hero, i7-6700k stock, Noctua D14, G.Skill Ripjaws V 3200 2x8GB, Gigabyte GTX 1650, Corsair HX750i, In Win 303 NVIDIA, Samsung SM951 512GB, WD Blue 1TB, HP LP2475W 1200p wide gamut

Gaming system: Asrock Z370 Pro4, i7-8086k stock, Noctua D15, Corsair Vengeance LPX RGB 3000 2x8GB, Gigabyte RTX 2070, Fractal Edison 550W PSU, Corsair 600C, Optane 900p 280GB, Crucial MX200 1TB, Sandisk 960GB, Acer Predator XB241YU 1440p 144Hz G-sync

Ryzen rig: Asrock B450 ITX, R5 3600, Noctua D9L, G.SKill TridentZ 3000C14 2x8GB, Gigabyte RTX 2070, Corsair CX450M, NZXT Manta, WD Green 240GB SSD, LG OLED55B9PLA

VR rig: Asus Z170I Pro Gaming, i7-6700T stock, Scythe Kozuti, Kingston Hyper-X 2666 2x8GB, Zotac 1070 FE, Corsair CX450M, Silverstone SG13, Samsung PM951 256GB, Crucial BX500 1TB, HTC Vive

Gaming laptop: Asus FX503VD, i5-7300HQ, 2x8GB DDR4, GTX 1050, Sandisk 256GB + 480GB SSD

Total CPU heating: i7-8086k, i3-8350k, i7-7920X, 2x i7-6700k, i7-6700T, i5-6600k, i3-6100, i7-5930k, i7-5820k, i7-5775C, i5-5675C, 2x i7-4590, i5-4570S, 2x i3-4150T, E5-2683v3, 2x E5-2650, E5-2667, R7 3700X, R5 3600, R5 2600, R7 1700

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Posted · Original PosterOP
4 hours ago, porina said:

Those CPUs have TDPs of 130W and 135W respectively. Your mobo is rated to deliver 130W only? Sounds a bit low as that wouldn't even cover turbo operation. Please give a link to the specific mobo used where power is specified. 

 

If that is the case, there is a possible workaround, you can simply configure the power limit to 130W or even lower.

The board im currently using is a Dell 8HPGT workstation board, which Dell claims in compatible with processors up to 130w. https://www.dell.com/support/article/us/en/04/sln290703/the-hardware-specifications-for-the-precision-t3600-desktop-workstation?lang=en

 

It's an annoying board that required me to re-pin an ATX power supply to accommodate its strange standard. That said, its been a good Blender (and secondary gaming) machine and extremely stable. I've also an Asus board but its got some damage to its socket, so I am thinking of buying one of these cheapos if I must: https://amzn.to/2REjoEE.  

 

Thanks everyone!

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40 minutes ago, Cylon Agent said:

The board im currently using is a Dell 8HPGT workstation board, which Dell claims in compatible with processors up to 130w.

Dell sticks to the TDP as long term power limit. I'm not sure how it would behave with an unsupported CPU. I would hope it just sets the power limit to 130W if that's all the board can handle. That means you might lose a little on turbo clock in some situations but shouldn't be that big a difference.

 

40 minutes ago, Cylon Agent said:

I've also an Asus board but its got some damage to its socket, so I am thinking of buying one of these cheapos if I must: https://amzn.to/2REjoEE.  

Looks familiar... they're interesting to play with. Still not done much with mine yet. Only got it to use up some spare ECC REG ram I had.

 

 


Main rig: Asus Maximus VIII Hero, i7-6700k stock, Noctua D14, G.Skill Ripjaws V 3200 2x8GB, Gigabyte GTX 1650, Corsair HX750i, In Win 303 NVIDIA, Samsung SM951 512GB, WD Blue 1TB, HP LP2475W 1200p wide gamut

Gaming system: Asrock Z370 Pro4, i7-8086k stock, Noctua D15, Corsair Vengeance LPX RGB 3000 2x8GB, Gigabyte RTX 2070, Fractal Edison 550W PSU, Corsair 600C, Optane 900p 280GB, Crucial MX200 1TB, Sandisk 960GB, Acer Predator XB241YU 1440p 144Hz G-sync

Ryzen rig: Asrock B450 ITX, R5 3600, Noctua D9L, G.SKill TridentZ 3000C14 2x8GB, Gigabyte RTX 2070, Corsair CX450M, NZXT Manta, WD Green 240GB SSD, LG OLED55B9PLA

VR rig: Asus Z170I Pro Gaming, i7-6700T stock, Scythe Kozuti, Kingston Hyper-X 2666 2x8GB, Zotac 1070 FE, Corsair CX450M, Silverstone SG13, Samsung PM951 256GB, Crucial BX500 1TB, HTC Vive

Gaming laptop: Asus FX503VD, i5-7300HQ, 2x8GB DDR4, GTX 1050, Sandisk 256GB + 480GB SSD

Total CPU heating: i7-8086k, i3-8350k, i7-7920X, 2x i7-6700k, i7-6700T, i5-6600k, i3-6100, i7-5930k, i7-5820k, i7-5775C, i5-5675C, 2x i7-4590, i5-4570S, 2x i3-4150T, E5-2683v3, 2x E5-2650, E5-2667, R7 3700X, R5 3600, R5 2600, R7 1700

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Dell's X58 boards were intended to be used with 130 Watt CPUs.  They could run at well over that spec without any problems.  Here is an example of a T3500 running all 6 cores at full steam with the TDP limit bumped up to 180 Watts.

 

AJEWPZt.png

 

I am pretty sure that 135 Watts vs 130 Watts is not going to be a big deal.  As long as the BIOS recognizes your new CPU and boots up, everything will be OK.  If the bios does not recognize this CPU, it will not post, leaving it hanging at the BIOS screen.

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Posted · Original PosterOP
18 hours ago, unclewebb said:

Dell's X58 boards were intended to be used with 130 Watt CPUs.  They could run at well over that spec without any problems.  Here is an example of a T3500 running all 6 cores at full steam with the TDP limit bumped up to 180 Watts.

 

I am pretty sure that 135 Watts vs 130 Watts is not going to be a big deal.  As long as the BIOS recognizes your new CPU and boots up, everything will be OK.  If the bios does not recognize this CPU, it will not post, leaving it hanging at the BIOS screen.

This is an interesting tool! I didn't realize changing/bypassing the allowable TDP could be done so easily with software. Hopefully it will POST! I'll test things out this weekend and report.

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Posted · Original PosterOP

Just thought I'd close this out. Xeon e5-2690 is now installed and it simply booted up normal. Interestingly, the BIOS detects the CPU's TDP as135. Runs at 32C idle (didn't stress it yet). VRM is cool to the touch.

 

Thanks everyone!

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