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Dangerous to do some severe underclocking?

Q13E5
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So i have a RM750 1st gen power supply that is known to have power instability issues,

i also have 2 nvidia gforce gtx 980s evga in HB sli

My CPU is AMD Ryzen 5.

i has 2 HDDs in, i used to have 5 in. (no SSDs)

in my upgrade plan, i have decided to underclock my CPU to avoid freezes and crashes due to power instability and limits

multiple calculators claim that i will need a v1000 power supply for general use and v1200 for overclocking.
is it bad for me to run the CPU past half it's clock?891cc102536a5c03a803be6c7f6eae00.png.cb459ed80c721f87c01beec53a896ea2.png

 

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Underclocking should be fine, just be careful with the voltages though. 

print "Hello World!" ("Hello World!")

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Forget those PSU calculators, those are better called as scam sites.

 

Two 980s and a 4GHz R5 1600X will only draw up to 570w (Each 980 can use up to 225w which is limited by their vBIOS, while 1st gen Ryzen 6 core at 1.42V 4GHz will use 120w) , which means 650w PSUs are enough, at most get a 750w unit. That is, unless you've got a non-reference card or use a modded BIOS.

 

I myself would rather take away one of the 980s and run the CPU at full speed, till the PSU upgrade comes.

 

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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24 minutes ago, Jurrunio said:

Forget those PSU calculators, those are better called as scam sites.

 

Two 980s and a 4GHz R5 1600X will only draw up to 570w (Each 980 can use up to 225w which is limited by their vBIOS, while 1st gen Ryzen 6 core at 1.42V 4GHz will use 120w) , which means 650w PSUs are enough, at most get a 750w unit. That is, unless you've got a non-reference card or use a modded BIOS.

 

I myself would rather take away one of the 980s and run the CPU at full speed, till the PSU upgrade comes.

 

Better yet sell them and get a single 1080.

CPU: Core i9 12900K || CPU COOLER : Corsair H100i Pro XT || MOBO : ASUS Prime Z690 PLUS D4 || GPU: PowerColor RX 6800XT Red Dragon || RAM: 4x8GB Corsair Vengeance (3200) || SSDs: Samsung 970 Evo 250GB (Boot), Crucial P2 1TB, Crucial MX500 1TB (x2), Samsung 850 EVO 1TB || PSU: Corsair RM850 || CASE: Fractal Design Meshify C Mini || MONITOR: Acer Predator X34A (1440p 100hz), HP 27yh (1080p 60hz) || KEYBOARD: GameSir GK300 || MOUSE: Logitech G502 Hero || AUDIO: Bose QC35 II || CASE FANS : 2x Corsair ML140, 1x BeQuiet SilentWings 3 120 ||

 

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the reason i ask is that i am unable to boost my GPU at all and if i let my PC run at stock i get some random bluescreens, even 2 days after a fresh reinstall. this is why i'm thinking on getting an 1000 or 1200 power block to avoid any further issues.

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Honestly, if you're having power instability issues, just get a new PSU and avoid using your rig until then.

 

PSUs are known to take other parts, sometimes a whole system, with them when they die.

Quote or tag me( @Crunchy Dragon) if you want me to see your reply

If a post solved your problem/answered your question, please consider marking it as "solved"

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24 minutes ago, Q13E5 said:

the reason i ask is that i am unable to boost my GPU at all and if i let my PC run at stock i get some random bluescreens, even 2 days after a fresh reinstall. this is why i'm thinking on getting an 1000 or 1200 power block to avoid any further issues.

The problem is specific to this model of PSU, not PSUs rated at this wattage.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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i understand that as i quoted above, ("So i have a RM750 1st gen power supply that is known to have power instability issues"). i think i should get a higher watt block that also claims to ensure power stability. i had weird crashes when i tried to push the GPUs powertarget  % to the max (past 100%) which shouldn't harm it from the date i bought the stupid block. it just became more frequent after i replaced my 4790k with a ryzen 5 1600k.

at the time i bought this power block, i only had 1 nvidia gforce gtx 980s evga

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